This product is a horizontal fixed vacuum powder insulation low-temperature storage tank, featuring a double-layer cylindrical structure. The inner container is used for storing low-temperature liquefied natural gas, while the outer shell forms and protects the vacuum insulation space. The interlayer is filled with pearlescent sand and evacuated to create an effective insulation system. The design of the outer shell and support system can withstand the related external forces during manufacturing, transportation, installation, and use. The tank bottom is equipped with a complete set of valves, instruments, and safety devices for operation. Safety: 1. The stainless steel is purchased from Taiyuan Iron and Steel Plant's stainless steel plate, a leading domestic manufacturer of stainless steel plates, ensuring quality. 2. The pipe material is sourced from Anhui Tian Da Steel Pipe, the first supplier of domestic stainless steel smooth pipes. 3. Materials are re-inspected according to GB150-2011 "Pressure Vessels," and cutting is done using a CNC plasma cutting machine, strictly controlling the geometric dimensions of the cylinder sections. 4. Both longitudinal and circumferential seams are welded using submerged arc welding, resulting in good appearance and 100% X-ray inspection of the inner shell. Vacuum Degree: 1. The inner and outer surfaces of the stainless steel inner shell are degreased and pickled, and the carbon steel outer shell is sandblasted, ensuring paint adhesion, extending the paint's corrosion resistance, and enhancing the stainless steel plate's corrosion resistance while reducing the interlayer release of gas, ensuring the vacuum's lifespan. 2. Prior to sand filling, the pearlescent sand undergoes a unique dehydration pretreatment, and the interlayer is heated and purged with nitrogen gas, significantly reducing the gas source. 3. Sand filling uses negative pressure filling and positive pressure compacting techniques, ensuring the uniformity of the interlayer pearlescent sand. 4. A unique vacuum extraction process is employed, greatly shortening the vacuum extraction time for the inner shell and interlayer, ensuring the vacuum degree is superior to national standards. The tank's vacuum degree is guaranteed to not require reprocessing within 3 to 5 years. Appearance: 1. Elbows are bent on a CNC elbow bending machine, strictly ensuring the geometric dimensions of the elbows. Elbow joints are not used, significantly reducing pipeline resistance and improving the aesthetics of the outer piping system. 2. Paint is applied using Jotun, a world-renowned brand, with two coats of primer and two coats of topcoat, ensuring paint longevity and equipment appearance quality.