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High vacuum multi-layer insulated cryogenic liquid conveying pipeline is a special pipeline for cryogenic liquid transportation.
Technical Introduction:
High vacuum multi-layer insulated cryogenic liquid conveying pipeline is a special pipeline for cryogenic liquid transportation.
Technical Features:
1. The inner and outer pipes of the vacuum pipe are stainless steel, and special multi-layer thermal insulation and anti-radiation composite materials are used in the sandwich.
2. The connection of vacuum pipeline adopts special sealing process, which can maintain high vacuum state for a long time, so as to reduce the cold loss to a minimum, and fully meet the heat preservation requirements of low-temperature liquid in transportation.
Technical Parameters:
Specifications | Internal name Tongjing | DN15 | DN20 | DN25 | DN32 | DN40 | DN50 | DN65 | DN80 | DN100 | DN125 | DN150 |
inner tube | φ20 | φ25 | φ32 | φ38 | φ45 | φ57 | φ76 | φ89 | φ108 | φ133 | φ159 | |
Outer tube | φ76 | φ89 | φ89 | φ108 | φ108 | φ114 | φ133 | φ159 | φ168 | φ219 | φ219 | |
work pressure | Design according to user needs | |||||||||||
Design temperature | -196℃ | |||||||||||
Working medium | LO2, LN2, LAr, LNG and other cryogenic liquids | |||||||||||
Inner and outer cylinder material | OGr18Ni9 SUS304 | |||||||||||
adiabatic form | High vacuum multi-layer winding wrapping insulation | |||||||||||
Interlayer pressure | ＜0.004Pa | |||||||||||
Pipeline cold loss | 0.5W//m(Design data) | |||||||||||
Pipeline vacuum leakage rate | ＜2×10-9 | |||||||||||
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