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Contact us |
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Add:
Add:No.9 Jinqiao Road, Dapu Industrial Area, Lianyungang,Jiangsu,China
Zip:222069
http://www.lygqtjx.com |
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Marine loading and unloading arm is used in transmitting liquid medium between the pipeline of tanker and the storage and transportation in port.
---In the process of transmission , following the tanker within the normal drifting range.
---According to the difference of the diameter, type and load of the loading and unloading arm, it could be operated manually or controlled by electro-hydraulic.
---According to the difference of the medium types and temperature, pipeline of loading and unloading arm could be designed to use carbon steel, stainless steel and PTFE lined steel as the material.
---the range of designed temperature is -196degree~+300degree
---tha range of designed pressure is PN1.0Mpa~PN4.0Mpa. |
Basic construction of marine arm:
| 1.Three-dimensional joint |
9.Rotor Shaft box |
| 2.Outer arm |
10.Vice-counterweight |
| 3.Support of outer arm |
11.Pulling down rope Wheel |
| 4.Pulling up rope wheel |
12.Wire Rope |
| 5.Inner arm |
13.Column |
| 6.Support machine |
14.Ladder components |
| 7.Locking device |
15.Entrance flange |
| 8.Outer arm |
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Code of Structural style
- Self-supporting, double counterweight, marine arm
- Mixed support, Single counterweight, marine arm
- Independent support, Single counterweight, marine arm
- Independent support, Single counterweight, marine arm(Double pipe)臂(双管)
Driving Mode:
M- Manual type
H- Hydraulic-driven |
Design condition of Marine Loading Arm :
Necessary conditions for marine arm designe：Tonnage size of port, height of water, tanker size, loading and unloading medium, Medium pressure, Medium temperature, Wind Load, Earthquake load, etc.
To environmental data, if customer has no particular request, it could be designed according to the below standards.
Wind speed: Reset state55m/s Operational state: 20m/s
Wind Load: 55m/s—20Mpa 20m/s—2.5Mpa
Seismic coefficient: 0.2
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Typical permitted flow
The diameter of arm |
Permiting flow Cubic m3 /h |
DN150 |
500 |
DN200 |
1100 |
DN250 |
1750 |
DN300 |
2500 |
DN400 |
4000 |
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With arm spacing and Center distanceof column Edge distance of port
Tonnage |
the diameter of arm |
spacing of arm |
distance between the center of column and the port edge |
1 Million tons below |
DN150 |
2.0 |
1.5~2.0 |
1 Million tons |
DN200 |
2.0~2.5 |
1.5~2.0 |
2 Million tons |
DN200-
DN250 |
2.0~2.5 |
1.5~2.0 |
3 Million tons |
DN250 |
2.0~3.0 |
2.0~2.5 |
5 Million tons |
DN300 |
3.0~3.5 |
2.0~2.5 |
8 Million tons |
DN300-
DN400 |
3.0~3.5 |
2.0~2.5 |
10 Million tons |
DN300-
DN400 |
3.5 |
2.5~3.0 |
20 Million tons |
DN400 |
3.5 |
2.5~30 |
Typical loading data
The diameter of arm |
the form |
vertical load |
horizontal load |
Overturning moment |
DN150 |
AM61 |
4.5 |
1.9 |
10.8 |
DN200 |
AM61 |
5.6 |
2.2 |
12.5 |
DN150 |
AM63 |
6.2 |
3.8 |
23.0 |
DN200 |
AM63 |
8.7 |
4.5 |
28.6 |
DN250 |
AM63 |
11.0 |
5.3 |
35.0 |
DN300 |
AM63 |
19.0 |
9.0 |
85.0 |
DN150/100 |
AM64 |
7.5 |
4.5 |
26.0 |
DN200/100 |
AM64 |
9.0 |
5.0 |
30.0 |
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Marine Units arm number and caliber choice
Berth Tonnage |
number of units marine loading arm(number of units marine unloading arm |
DWT |
DN150 |
DN200 |
DN250 |
DN300 |
DN400 |
1000 |
1（1） |
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3000 |
2（1） |
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5000 |
2（1） |
1（1） |
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10000 |
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2（1） |
1（1） |
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20000 |
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3（1） |
2（1） |
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30000 |
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3（1） |
2（1） |
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50000 |
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3（2） |
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80000 |
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3（2） |
2（1） |
100000 |
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3（2） |
200000 |
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3（2） |
Backplane Size of marine arm
Backplane Size of marine arm is showed in the following table, it also could be made according to the customer’s request.
Height of extended positioning plate of embedded bolts is backplane thickness plus thickness of 2 nut plus 50m.
Embedded bolts’ Height of extending from guide plate is: backplane thickness plus thickness of 2 nuts plus 50mm.
The diameter of arm |
size of backplane（A） |
big hole distance （B） |
small hole distance（C） |
backplane thickness |
the number of holes |
Specifications of embedded bolts |
DN150 |
1000 |
1140 |
140 |
30 |
8-Φ36 |
M32 |
DN200 |
1200 |
1260 |
170 |
30 |
8-Φ36 |
M32 |
DN250 |
1400 |
1360 |
170 |
30 |
8-Φ42 |
M36 |
DN300 |
1500 |
1640 |
170 |
40 |
8-Φ42 |
M36 |
DN350 |
1600 |
1860 |
210 |
50 |
8-Φ42 |
M36 |
DN400 |
1800 |
2100 |
210 |
50 |
8-Φ46 |
M32 |
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AM61 Marine loading and unloading arm AM61
Tha main parts:
High point rotary joint
Outer arm
Inner arm
Ship-end connecting flange
counterweight beam
Locking device
counterweight steatite
Entrance flange
Emptying mouth
counterweight steatite of outer arm
counterweight beam
Vacuum short-circuit system
Three-dimensional rotating components
Column
Base
Technical parameters:
Nominal Diameter: 4” 6” 8”
Pipeline material:--- Carbon Stee---- Stainless steel
Optional Attachment:
---vacuum short-circuit equipment--- Emptying system --- Insulation flange
---- Cut-off valve --- Quick connector by manuall
Feature :
Self-supported structure, outer and inner arms have independent counterweight system respectively. Pipeline system uses variable cross-section structure. All the external storage and the bending moment are beared by rotating joints.
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AM62 Marine loading and unloading arm
main parts:
Pulling up rop Wheel
Inner arm
Steel rope
Counterweight
Outer arm
Counterweight beam
Pulling down rope Wheel
Base
Cut-off valve
Three-dimensional joint
Outer arm
Rotating driver
Inner arm driver
Technical parameters:
Nominal Diameter: 4” 6” 8”
Pipeline material:--- Carbon Steel ---- Stainless steel
Optional Attachment:
---vacuum short-circuit equipment --- Emptying system --- Purge system --- Insulation flange
---- Cut-off valve -- Site Limited System --- Adjustable outrigger --- Quick connector by manuall
Feature :
Mixed supported structure,and single counterweight system.
Pipeline system adopts variable cross-section structure.
All the external storage and the bending moment are beared by rotating joints. |
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