Low-temperature storage tanks are commonly used in the industrial gas sector, with a vast range of applications across various industries. These include steel mills, chemicals, oil, food, and aerospace, among others, all of which require gases. Industrially, gases like oxygen, nitrogen, and argon, which are in high demand, are separated from air by compression and liquefaction equipment, based on the different boiling points of oxygen, nitrogen, and argon, and then stored in low-temperature storage tanks.
Liquefied Natural Gas (LNG)The tank features a long service life, compact structure, minimal land occupation, centralized control, ease of operation, and convenient maintenance. It is a double-layer fixed vacuum powder insulation low-temperature storage tank. The inner shell is made of stainless steel.,Outer case material isQ235BOr16MnRThe liquid oxygen tank surface is coated with anti-corrosion layers using processes such as sandblasting, sweeping, and spraying, and features a two-component quick-curing liquid paint.
The liquefied natural gas (LNG) storage tank is composed of the tank body, instruments, pipelines, valves, etc. The LNG storage tank employs two liquid inlet methods, upper and lower, which can be chosen and used according to actual conditions.
The inner tank of the Liquefied Natural Gas (LNG) storage tank is equipped with a safety system device featuring dual safety valves. In normal operation, one set is in working condition while the other is on standby. If the working safety valve trips, the manual pressure relief valve is immediately opened to release pressure to the highest working pressure of the tank. Simultaneously, the safety device is swiftly switched to the standby system via the manual handle, effectively ensuring the tank's safety. This safety system device consists of safety valves, explosion-proof devices, vent valves, and three-way ball valves, not only ensuring pipeline welding quality but also featuring excellent fire and static electricity prevention structures. Additionally, the safety relief openings on the casing are fully guaranteed to ensure the overall safety and reliability of the equipment. The low-temperature pipelines are集中引出 for operation and control, and the outlet is designed with a Dura tube structure to meet low-temperature requirements and reduce stress caused by thermal expansion and contraction in the pipelines, ensuring the tank's safety. The vacuum valve is sealed with three "O" rings, effectively ensuring the reliability of the sandwich seal, and is made of full stainless steel with a compact size. The top of the LNG storage tank features a research and development suspended structure for easy transportation, lifting, and installation. The unique manhole design ensures the cleanliness inside the inner tank when sealed. Vacuum isolation valves and combined vacuum gauges are used on the LNG storage tank for measuring and maintaining the vacuum degree of the tank's sandwich, extending the tank's service life and improving its quality. The LNG storage tank is equipped with a level gauge and pressure gauge for local display of liquid level and pressure.
This product is a horizontal fixed vacuum powder insulating low-temperature storage tank, featuring a double-layer cylindrical structure. The inner container is designed to store low-temperature liquefied natural gas, while the outer shell forms and protects the vacuum insulating space. The interlayer is filled with pearlescent sand and evacuated to create an excellent 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:
One, stainless steel plates are sourced from Taiyuan Iron and Steel Plant, the leading manufacturer of stainless steel plates in China, ensuring quality. The tubing is procured from Anhui Tianda Steel Tube, the number one supplier of domestic stainless steel seamless tubes.
Section 2: Materials are all in accordance withGB150-2011The "Pressure Vessel" undergoes re-inspection; the cutting is done using a CNC plasma cutting machine, with strict control over the geometric dimensions of the cylinder sections.
Section 3: Both longitudinal and circumferential seams are焊接 using submerged arc welding, resulting in good appearance and shape, with the inner shell also being焊接.100%XRadiation Detection
Vacuum Degree:
One, the inner and outer surfaces of the stainless steel liner are degreased and pickled, while the carbon steel shell has been sandblasted and rust-removed on both inner and outer surfaces. This ensures the paint's adhesion, extends the paint's corrosion resistance lifespan, enhances the corrosion resistance of the stainless steel plate, reduces the air release from the sandwich, and thus guarantees the longevity of the vacuum level.
Prior to sand loading, the pearl sand undergoes a unique dehydration pretreatment, and the sandwich layer is heated by nitrogen gas for displacement treatment, significantly reducing the gas emission source.
Three, the negative pressure filling and positive pressure compaction technique for sand ensures the uniformity of the sandwiched pearlescent sand. The use of vibration rod compaction maximizes the filling amount of the pearlescent sand, guaranteeing the insulation effect of the sandwich.
Four: Utilizing a unique vacuum extraction process, it significantly reduces the time required to evacuate the inner shell and insulation, ensuring that the vacuum level of the insulation exceeds national standards. It guarantees the vacuum level of the storage tank to be3～5No reprocessing required within the year.
Appearance:
One, bending pipes are formed on CNC bending machines, ensuring strict geometric dimensions. No elbows are used for connection, significantly reducing pipe resistance and enhancing the aesthetics of the external piping system.
The paint used is from Jotun, a world-renowned brand, with two coats of primer and two coats of topcoat, ensuring the lifespan and appearance quality of the paint on the equipment.
