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86 512-81666096166、brief introduction of lng gasification station process - doer equipment
classification：industry publishtime：2020-11-28 13:28:50
brief introduction of lng gasification station process
the low temperature process pipe in front of air heated gasifier of lng system is made of stainless steel seamless pipe (gb / t14976-2002) for conveying fluid, and the material is 0cr18ni9. the other normal temperature pipes are made of 16mn, 20 ᦇ steel (gb / t8163) or q235b (gb / t13973-92) seamless steel pipes for conveying fluid. the branch pipes of pneumatic control valves are made of copper pipes ∮ 6 * 1.5, and the main pipes are made of seamless steel pipes.
the equipment insulation and installation shall be in accordance with the supplier's requirements. after rust removal, the external surface of non insulated overhead process pipeline shall be painted with two layers of antirust primer and two layers of mixed finish (stainless steel pipe of cng system may not be painted), and the pipe support shall be sliding support with curved groove
(see standard atlas 97r403.003 for details); the insulation layer of overhead low temperature pipeline is made of composite polyethylene material (ccpe), and its support is polyurethane pipeline support, with the thickness of pipeline insulation layer of 100 mm. polytetrafluoroethylene curved plate is used as sliding support between overhead pipeline and support of process pipeline 3x, 4x gas phase pipeline and its branch pipe; the overhead hot water circulating pipe is insulated by rock wool pipe shell with thickness of 30mm and coated with color steel plate.
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