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『Liquid oxygen flowmeter』Related information(v cone flow meter|rotary gas meter|gallon meter|gear meter|metal tube rotameter|glass tube rotameter|nutating disk meter|transit time ultrasonic flow meter|wedge flow meter|pd meters|hydraulic flow meter|ultrasonic water flow meter|water flow meter|air flow meter|magnetic water flow meter|oxygen flow meter|gas flow meter|argon flow meter|air velocity meter|gasoline flow meter|fuel flow meter|ultrasonic water meter|digital water meter|nitrogen flow meter|solid flow meter|Oxygen tank flow meter|digital water flow meter|diesel fuel flow meter|steam flow meter|02 flow meter|compressed air flow meter|oil flow meter|liquid flow meter)
1. Composition of oxygen inhalation device
The oxygen inhalation device mainly consists of four parts: oxygen supply source, flow control device, humidification device, and oxygen inhalation pipeline Oxygen supply source • Oxygen storage cylinder: High pressure steel or composite material gas storage cylinder, common specifications include 2L, 4L, 10L, 40L, working pressure is usually 15MPa • Oxygen generator: Separate oxygen from the air through molecular sieve technology, oxygen concentration needs to reach 93% ± 3% (YY/T 0298-2022 medical standard) • Liquid oxygen tank: -183 ℃ low-temperature storage equipment, used after vaporization, suitable for long-term high flow oxygen therapy needs 2 Flow control device • Pressure reducing valve: reduces high-pressure oxygen to a safe range of 0.1-0.4MPa • Flow meter: float type or pressure compensation type, accurately controls the flow range of 1-15L/min (error ± 0.5L/min) • Oxygen concentration monitoring: electrochemical or optical sensor, real-time display of 82% -96% oxygen concentration value 3 Humidification device • Bubble humidification bottle: allows oxygen to form bubbles through distilled water, increasing humidity • Heating humidifier: constant temperature heating to 31-37 ℃ to avoid damage to respiratory mucosa caused by high transparency (ISO 8185 standard) • Primary humidification tube: built-in porous material water container to avoid cross infection 4 Oxygen inhalation tubing and interfaces • Nasal cannula: suitable for 1-5L/min low flow oxygen supply, with an oxygen concentration of about 24% -40% • Face mask: simple face mask (5-10L/min), Wenqiu inner face mask (24% -60% accurate oxygen supply), non repeating breathing face mask • High flow oxyge
2. Design of oxygen station for hospital central oxygen supply system
Design of oxygen station for hospital central oxygen supply system The design of oxygen station for hospital central oxygen supply system is the key to ensuring that all departments in the hospital can continuously and stably obtain oxygen supply.
. The following is a detailed explanation of the design of the oxygen station in the hospitals central oxygen supply system:1. System Overview The hospitals central oxygen supply system mainly consists of three parts: oxygen station, pipeline system, and gas terminal. The oxygen station, as the core of the entire system, is responsible for the storage, purification, depressurization, and transportation of oxygen. When designing, it is necessary to fully consider the hospitals scale, department distribution, oxygen demand, and the possibility of future expansion.
2. Selection of Gas Busbar Design Form for Oxygen Station Design: Generally, small and medium-sized medical center oxygen supply systems use semi-automatic switching gas busbars, which adopt a dual gas source structure of main gas supply cylinder group and backup gas cylinder group to ensure uninterrupted gas supply.
. Working principle: By setting the pressure difference between the main gas supply cylinder group and t