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中国科学院理化技术研究所中国科学院理化技术研究所 Technical Institute of Physics and Chemistry, CASTechnical Institute of Physics and Chemistry, CAS
Introduction of Large Cryogenic Introduction of Large Cryogenic Engineering Activities of TIPCEngineering Activities of TIPC
Jan 19, 2009
LIU, Liqiang ( 刘立强)
ContentsContents
• Brief Introduction of TIPC
• Brief Introduction of LCEG of TIPC
• Research Activities
• Organization structure of Chinese Academy of Sciences
1. Introduction of TIPC
CAS
IHEP IP IC TIPC IPP SINAP IMP
More than 100 institutes
West of Bejing North of Beijing Outside of Beijing
Airport
IHEP
TIPC 4th ring road
Tian An Men
Chang An streetCAS
TIPC was founded in 1999, on the basis of• The former Inst. of Photographic Chemistry of CAS• The former Cryogenic Laboratory of CAS (which had 2/3
cryogenic people in China, ‘Cryogenic National Team’)• Some relevant departments of IC and IP of CAS
TIPC has • over 350 professional staff & over 300 MS and Ph.D. students• 6 Academicians of CAS and 59 full professors and equivalent
Key research areas of TIPC (6 research centers & 26 groups)• Optical functional materials and device• New synthesis technologies for green chemistry• Energy materials and new technologies • New technologies of cryogenic engineering (2 centers & 7 groups)
1. Introduction of TIPC
• My group, the Large Cryogenic Engineering Group (LCEG), takes the design, construction and commissioning of the cryogenic systems in the Large Scientific Project in China and oversea, especially in the HEP field as our main work
2. Introduction of LCEG
2. Introduction of LCEG
Name Title Research Field刘立强Liu Liqiang
Group leader Ph.D., Professor
Large cryo-systems
张 亮Zhang Liang
Professor Vice Chairman of ICEC
Cryo-coolerLarge cryo-systems
熊联友Xiong Lianyou
Ph.D. Associate Professor
Reversed Brayton Cryo-cooler Gas Liquefaction, Process design
颜晓明Yan Xiaoming
Senior Engineer Measuring & control
陆文海Lu Wenhai
Senior Engineer Design & manufacture of cryogenic equipments
刘晓军Liu Xiaojun
Senior Engineer Helium liquefier Cryogenic process
李 静Li Jing
Assistant Professor Quality Control Measuring and Control
Name Title Research Field
彭 楠 Peng Nan Ph.D. student Superconducting Magnet
赵同宪 Zhao Tongxian Ph.D. student Superconducting RF Cavity
马文彬 Ma Wenbin Ph.D. student Superconducting Magnet
马莉娅 Ma Liya Ph. D. student Cryogenic System
董斌 Dong Bin Master student Cryogenic System
姜永诚 Jiang Yongcheng Master student Cryogenic System
Ph. D. graduated
徐庆金 Xu Qingjin Ph.D. student Superconducting Magnet
宗占国 Zong Zhanguo Ph.D. student Superconducting RF Cavity
2. Introduction of LCEG
Cooperative construction and commissioning of cryogenic syst
em of BEPCII
Design, construction and commissioning of SSRF cryogenic sy
stem
Cooperative construction of cryogenic system for PKU-FEL
ILC collaboration on SC RF cavity cryo-module
Thermal analysis and commissioning of LHC cryogenic system
Thermal analysis of ITER cryogenic system
Other projects
3. Research Activities
Beijing Electron-Positron Collider UpgradeBeijing Electron-Positron Collider Upgrade
3. Research Activities - BEPCII
3. Research Activities - BEPCII
2 cavities, 500 MHz & one cell each Cavities are made of niobium and will work at 4.5 K. Cavity resides inside a stainless steal liquid helium vessel of 290 liter. Thermal loads include about the 30 W static load and 84 W dynamic load.
3. Research Activities - BEPCII
A pair of SC interaction quadrupoles magnets is used Consisting of independent quadrupole (SSQ), horizontal dipole (SCB, SCB or HDC) vertical dipole (VDC), Skew-quadrupole (SKQ) and three part atti-solenoid (ASI-3) windings
3. Research Activities - BEPCII
Cold Box
J-T Valve 2
1
HX8
SRF Cavity A
SRF VB
SRF Cavity B
To Compressor Suction
2000L Dewar
2345A
5B
6A
7A
Gas Flow Cooling Coupler A
Gas Flow Cooling Coupler B
6B
7B
8B8A 9
3'
10
3. Research Activities - BEPCII
Cold Box
J-T Valve 2
1
HX8
15
Valve Box
1000LDewar
24
5AB
5C
12B
12A 13
3
6AB
7A
8A9A
10A
11AB
6C
7C
8C9C
10C11C 14
7B
8B9B
10B Coo
ling
Cur
rent
Lea
ds
Coo
ling
Cur
rent
Lea
ds CoolingCurrent Leads
SCQ ASCQ B
SSMSCQ B
VBSCQ A
VB
SSMVB
60LDewar
Heater
3. Research Activities - BEPCII
Our contributions: Check and review of the engineering design
Preliminary design and thermal analysis of cryogenic system and current leads for SSM of BESIII
Fabrication of cryogenic transfer lines
Problem analysis during the cryo-plant performance test
Design of the control logic and interlock
Problem analysis after the first commissioning of the SC magnet cryogenic system
Attending installation and commissioning
3. Research Activities - BEPCII
Problem analysis after the first commissioning of the SC magnet cryogenic system
Shanghai Synchrotron Radiation FacilityShanghai Synchrotron Radiation Facility
3. Research Activities - SSRF
The third generation light source The Investment is 1.30 BCNY Including three SC RF cavities (499.65 Hz / 4.0 MV) A [email protected] cryo-plant is needed
3. Research Activities - SSRF
O
MC ORS
LN2
Buffer M
ain D
ewar
Compressor Station & Tank Farm
Cold Box Multi-channel
Transfer Line
Atm
N2 phase separator
V
L
P
P
300K return
ST
Atm
HT
VB
T P
U V
L
T
LP Tank
4.5
K
retu
rn
fro
m
cav
itie
s
300K
supply
80
K
retu
rn
fro
m
cav
itie
s
4.5
K
retu
rn
fro
m
dew
ar
80
K
retu
rn
fro
m
dew
ar
80
K s
up
ply
4.5
K s
upp
ly
HT
T P
U
Atm
HT
VB
T P
U V
L
T
Atm
HT
VB
T P
U V
L
T
Buffer Buffer
SRF Cavity - A SRF Cavity - B SRF Cavity - C SRF Cavity - T Atm
P
Refrigerator: 650W/4.5K LHe Dewar: 2000L Valve Boxes: 4 LN tank: 40m3
GHe Storage Tanks: 4×100m3
3. Research Activities - SSRF
HELIAL 2000+
3 Valve Boxes
for in-line Cavities
Valve Box
for test cave Cavity
SCTLs
Cavity
LHe Dewar
MCTL
LN2 Phase
Separator
CTL
3. Research Activities - SSRF
Our contributions:
Design of the flow-scheme of cryogenic system
Flow analysis of the cryogenic system
Drafting out the technical specifications of cryo-plant, valve box, tanks and other facilities and helping SSRF for ordering
Design of the cryogenic transfer lines (Helped by KEK)
Supervising the installation of piping and cryo-plant
Responsible for the cooperative commissioning of cryo-plant with SC cavities
3. Research Activities - SSRF
LN2 aluminum shield LN2 shield clamp LN2 shield welding plate
Bellow Welding flange G-10 mechanical support
Design of cryogenic transfer lines
3. Research Activities - SSRF
Ready for installation
Installation in tunnel welding
Clean room Pre-treatment in clean room
Supervision of the piping work
Cleaning test
3. Research Activities – PKU-FEL
Cold BoxCompressor(TCF20)
Pumping Sys.2000L Dewar
SC Accelerator DCSC Injector
2K Sys.
4.2K
2K 2K
2K2K
3. Research Activities – PKU-FEL
Our contributions: Review of the cryogenic system design by Linde
Design of the layout of the cryogenic system
Development of transfer line and valve
Installation and Commissioning
3. Research Activities – ILC
Cooperative research on 1.8K superconducting RF cryo-module for ILC together with IHEP of CAS
3. Research Activities - LHC
5 cryogenic islands; 8 refrigerators (18 kW @ 4.5 K each)Possibility: 1 or 2 refrigerators for 1 sector
3. Research Activities - LHC
0 2 4 6 8 10 12 14 16 18 20 22
Cold-down time [days]
60
100
140
180
220
260
300
Tem
per
atu
re [
K]
Supply T of sector Calculated average
T of magnets
Measured average T of magnets
Calculated return T of sector
Measured return T of sector
0 0.5 1 1.5 2 2.5 3 3.5 4Cool-down time [day]
120
140
160
180
200
220
240
260
280
300
Ma
gn
et
Tem
pe
ratu
re
[K]
CF of TNC 2.4 km away(Q19R7)
CF of TNC 1.0 km away(Q23L8)
CC of TNC 2.4 km away(Q21R7)
CF of TNC 1.0 km away(Q23L8)
0 5 10 15 20 25Cool-down time [days]
0
10
20
30
40
50
60
70
80
Co
olin
g p
ow
er
[kW
]
ActualPredicted available
DiDiDoDo
CFCFCCCC
Line DLine D
DiDiDoDo
CFCFCCCC
Line DLine D
refr
iger
ator CCii CCii
Our contributions: CD & WU simulation on LHC sectors
Analysis on problems during commissioning of LHC cryogenic system
3. Research Activities - ITER
Maximum and Minimum T in Magnet
60
80
100
120
140
160
180
200
220
240
260
280
300
320
40 80 120 160 200 240 280 320 360 400 440 480
Time (hr)
Max
imun
and
Min
imum
T (
K)
10
13
16
19
22
25
28
31
34
37
40
43
46
49
Max
imum
T d
iffer
ence
(K
)
Maximum TMinimum TMaximum T Difference
Our contributions: CD & WU simulation on all cryogenic parts
3. Research Activities – Other projects
Cooperative research on SC magnet for FAIR together with IMP of CAS
3. Research Activities – Other projects
Variable temperature cryostat for small scientific instruments
Type B: Heat conduct type
Type A: Continuous flow type