PIR cold insulation tube shells are used more and more widely in LNG cold insulation. I believe that for some users, the requirements and specifications of PIR cold insulation tube shells are not very clear. Such and other problems may also occur during use, thereby reducing cold insulation The service life of the tube and shell increases the burden. Let me introduce to you the requirements and specifications of PIR cold insulation shell.
The cold insulation layer of the PIR cold insulation tube shell must be tightly seamed, otherwise the cold air will escape from the joints and cause condensation, frost or even ice on the surface of the cold insulation layer. In addition, the moisture-proof layer must also be tight and airtight, otherwise, the moisture in the atmosphere will be sucked into the cold-insulation layer, and the cold-insulation layer will freeze and lose its cooling effect. The outer protective layer is a 0.5mm aluminum alloy plate, which is not high in strength and rigidity. Therefore, the wire buckle that binds the cold insulation layer cannot extend out of the moisture-proof layer. Once extended, it will top the outer protective layer. It is very beautiful, in addition, the elbow must be cut according to the waist of the shrimp, and the seam must be tight, otherwise it will open.
1. Requirements and specifications
The use temperature of PIR cold insulation tube shell is different: the use temperature of PIR cold insulation tile shell is 120~-196 degrees. The essence of heat preservation and cold preservation is the same. Try to slow down the heat exchange between the target and the environment. The tile shell uses vacuum to separate the inside and outside, so that heat is not transferred. The temperature inside is high, and the heat is not transferred to the outside for insulation. The outside temperature is high, and the heat is not transferred to the inside to keep cold.
2. Production specifications
PIR cold insulation tube shell requires different density: ordinary PIR tube shell density is 40, cold insulation PIR tube shell density is 80-100, usually polyether composite material is light yellow or brown-red viscous transparent liquid, undoubtedly solid and thin and uneven. Phenomenon, no mechanical impurities.
In today's energy shortage, the high-efficiency, energy-saving and environmentally friendly PIR cold insulation tube shell has been widely used worldwide.