According to the current gas supply mode of hospitals, most of them choose 2-3 5-cubic liquid oxygen storage tanks, equipped with 200 standard square vaporizers and pressure regulating devices, to ensure that the outlet pressure is not less than 0.4mpa. The process flow is shown in the figure below.
Liquid oxygen is sent to the site through a special tank, the storage tank is connected through a low-temperature hose, and the liquid is discharged by the pressure difference between the tank and the storage tank. When oxygen is needed, the liquid oxygen drainage valve of the storage tank is opened, and the gas is vaporized into gas through the air temperature type gasifier, which is sent to the oxygen pipeline to the gas point after pressure regulation and pressure regulation. At least two tanks and two vaporizers. The pressure regulating device is also designed in accordance with the dual circuit, which takes into account the standby situation. Standby equipment is available in case of emergency. The valves in contact with oxygen are made of S30408 stainless steel and degreased to ensure safety.
