Ethylene Storage Tank | Safe High-Pressure Gas Storage

Key Technical Points of Storage Tanks:

Cryogenic storage involves storing ethylene at near-atmospheric pressure and slightly below its boiling point (approximately -104°C). Liquid ethylene supplied from the outside enters the cryogenic ethylene storage tank via a receiving device. During normal operation, the daily evaporation rate of ethylene in the tank is approximately 0.06%~0.08%wt. The ethylene vapor (BOG) is liquefied by a compressor and refrigeration unit and then returned to the storage tank to maintain its cooling capacity. The volatile ethylene is pressurized by a cryogenic pump and then enters the ethylene evaporator, changing from liquid to gas and being delivered to ethylene users. Cryogenic ethylene storage tanks have large capacities, with single tanks reaching thousands to tens of thousands of cubic meters. They offer safe and reliable storage and transportation, significantly reducing costs and representing the future direction of ethylene storage development.

Types of Cryogenic Ethylene Storage Tanks: Cryogenic storage tanks are divided into above-ground and underground types. Above-ground tanks are further classified into single-containment, double-containment, and full-containment tanks based on their structural form. Underground tanks are mainly membrane tanks

The raw materials are sourced from leading industry steel plates, ensuring stable and reliable quality. This effectively reduces the number of longitudinal and circumferential welds and end cap splicing welds. Only burrs need to be trimmed from the cylinder body, resulting in no large waste materials, improving material utilization and guaranteeing product quality.

The standard carbon steel submerged arc welding wire and flux use Lincoln welding wire and flux from the USA, ensuring stable and reliable welding quality and a beautiful appearance.

Both domestic and imported paints are available, providing an attractive appearance and good weather resistance after painting.

Processing capabilities and technological advantages:

1. Laser cutting ensures high precision with an error within 0.05 mm, guaranteeing welding quality; heat exchanger baffles can be directly laser-cut.

2. For stainless steel longitudinal and circumferential welds ≤10 mm thick, plasma welding is used, with single-sided welding and double-sided forming, reducing welding wire consumption. Compared to submerged arc welding, it eliminates the need for carbon arc gouging, avoiding carburization, resulting in a beautiful appearance, low heat input, and excellent weld quality. Radiographic testing pass rate is over 99%.

3. Argon arc automatic welding machine provides high and stable welding quality and a beautiful weld appearance.

Advantages of a professional, assembly-line production model:

Product manufacturing is divided into more than a dozen processes, including material cutting, head pressing, rolling, longitudinal and circumferential welding, assembly welding, machining, heat treatment, hydrostatic testing, sandblasting, and painting. Each process is equipped with professional personnel, and there is a secondary division of labor within each process, which effectively improves work efficiency and product quality.