For most products, long-term storage in the refrigerator leads to product quality degradation, but for example, fruits such as bananas and oranges can be stored at 0℃ for several days, -30℃ for 1 week, and -50℃ for 2 months.
The use of cryogenic liquid nitrogen storage tanks in the food industry
During LNG storage, due to the effect of heat leakage from the middle layer insulation of the storage tank.
The first link in our chain of producing LPG ring tanks is head processing
LNG storage tanks are affected by heat leakage of the storage tank’s middle insulation layer.
ပန့်အမျိုးအစားသည် positive displacement vane pump၊ vane centrifugal sliding၊ စီးဆင်းမှုနှုန်းနှင့် shaft speed ဆက်စပ်မှု၊ stator အတွင်းမျက်နှာပြင်ကို ပြည်တွင်းမူလဒြပ်ပေါင်းမျဉ်းကွေးကို အသုံးပြု၍ stator နှင့် rotor၊ baffle၊ vane composition ဆယ်ခု၏ sealing cavity၊ stator မျက်နှာပြင်သည် ဒြပ်ပေါင်းမျဉ်းကွေးဖြစ်သောကြောင့်၊ stator မျက်နှာပြင်သည် ဒြပ်ပေါင်းမျဉ်းကွေးဖြစ်ပြီး၊ rotor လည်ပတ်မှုသည် တဖြည်းဖြည်းတိုးလာသောအခါ၊ inlet ၏ ဖိအားနှင့် အနှုတ်ပမာဏ တိုးလာသောအခါ၊ ဆီစုပ်လိမ့်မယ်။
Welded insulated gas cylinders (hereinafter referred to as gas cylinders) have a double-layer structure, with an insulating layer between the inner liner and the outer shell. The insulating layer is equipped with multiple layers of insulating material and maintains a high vacuum, and is used for the transport and storage of deep cold liquids such as liquid nitrogen and liquid oxygen.
The normal content of oxygen in the air is about 21%. Whether it is due to combustion or the entry of other gases, the reduction of the oxygen content in the air is potentially hazardous.
The storage tank is composed of a carbon steel or stainless steel shell and a pressure vessel placed in it. The interlayer is multi-layer winding insulation and maintains a high vacuum state. The site is operated under the design pressure according to the actual situation.
