Qingdao, China

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High vacuum multi-layer insulation low temperature pipeline

Vacuum insulation cryogenic tube is composed of inner tube, outer tube and multiple layers of insulation materials, which are composed of multiple layers of insulation materials in the interlayer to reduce radiant heat transfer; the interlayer is pumped into a high vacuum state to reduce convection heat transfer; vacuum insulation The inner and outer tubes of the cryogenic tube are separated by materials with low thermal conductivity to reduce the heat transfer of the solid, thereby controlling the cooling loss of the inner tube to a minimum, and fully satisfying the long-distance transportation of cryogenic liquid.

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Product Details


Main features of high vacuum multi-layer insulation low temperature pipeline:

Vacuum insulation cryogenic tube is composed of inner tube, outer tube and multiple layers of insulation materials, which are composed of multiple layers of insulation materials in the interlayer to reduce radiant heat transfer; the interlayer is pumped into a high vacuum state to reduce convection heat transfer; vacuum insulation The inner and outer tubes of the cryogenic tube are separated by materials with low thermal conductivity to reduce the heat transfer of the solid, thereby controlling the cooling loss of the inner tube to a minimum, and fully satisfying the long-distance transportation of cryogenic liquid.


Main technical parameters of high vacuum multi-layer insulation low temperature pipeline:

1. Pipeline design pressure: 1.6MPa~4.0MPa;

2. Design temperature: -196℃;

3. Applicable medium: LNG, LO2, LAr, LN2 and other low-temperature liquids

4. Connection form: vacuum flange connection, welding insulation connection, etc.


高真空绝热低温管道技术参数

 

管道规格
(mm)

公称通径

DN15

DN20

DN25

DN32

DN40

DN50

DN65

DN80

DN100

DN125

DN150

内  管

ф20

ф25

ф32

ф38

ф45

ф57

ф76

ф89

ф108

ф133

ф159

外  管

ф76

ф89

ф89

ф108

ф108

ф114

ф133

ф159

ф168

ф219

ф219

工作压力

根据用户需要设计

设计温度

-270℃

工作介质

LO2、LN2、LAr、LH2、LHe、LNG

内、外筒材质

1Cr18Ni9Ti、SUS304

结构形式

高真空多层绝热

夹层压力

<0.004Pa

管道真空漏率

<2×10-10PaL/S

内管强度试验

根据工作压力进行

气密性试验

根据工作压力进行

设计依据

1.根据国家有关标准和Q/XLT01-2008标准
2.按用户提供的低温液体输送管道系统布置图要求进行



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