working principle:
The medical oxygen generator system is a technical product that uses the pressure swing adsorption (PSA) principle to separate air. The compressed air purified by the air purification dryer enters the bottom of the adsorption tower. The tower is filled with zeolite molecular sieve with strong adsorption capacity for nitrogen under certain pressure. When the air passes through the zeolite molecular sieve adsorption bed, nitrogen Carbon dioxide and water are adsorbed, while oxygen is enriched at the top of the tower and output as products. The system is equipped with two adsorption towers, one for adsorption and oxygen production, and the other for desorption and regeneration. The cycle is alternating to continuously produce oxygen.
The oxygen source (busbar and oxygen generator) provides continuous oxygen supply for the system. During operation, the oxygen produced by the oxygen generator shall be used first. When the oxygen generator is repaired or fails, the system will automatically switch to the busbar for oxygen supply. At the same time, the system will send an audible and visual alarm signal to remind the user that the system is abnormal. The system can supply oxygen continuously and stably in a circulating state; The gas pipeline is responsible for stably transporting the gas to each gas terminal; The pressure reducing device is used to control and manage the gas pressure and reduce its circuit pressure to the set value. The gas terminal is used to switch Qilu equipment. The pressure is only an alarm device to help identify the gas pressure and give prompt alarm in time.
Work flow: the liquid oxygen system is mainly composed of central liquid oxygen station, two-stage voltage and steady flow box, oxygen pipeline, pipeline switch, oxygen quick connector and oxygen humidifier.
The central liquid oxygen station is the core of the liquid oxygen system. It is mainly composed of vacuum powder insulated low-temperature liquid oxygen storage tank, booster coil, carburetor, oxygen distributor (sub cylinder), etc.
The working process is that the liquid oxygen in the liquid oxygen storage tank is vaporized by the carburetor and input to the oxygen distributor, and then enters the oxygen main pipeline of each user through each manual valve on the distributor (sub cylinder).
System composition:
Oxygen station: oxygen generator, busbar (including oxygen cylinder), high-pressure main pipe, high-pressure pipe fittings, valves, oxygen control box, audible and visual alarm, pressure reducing and stabilizing device, etc;
Pipeline: degreased copper pipe, oxygen pressure gauge, oxygen valve, etc; Oxygen terminal: ventilator, oxygen warming bottle, equipment belt, etc.
Composition and function of each part:
Feed air: provided by air compressor, meeting various technical indexes of oxygen generator system.
Air purification system: it is composed of special air storage tank, filter and air pure dryer. Remove water, carbon dioxide, trace acetylene and other impurities in the compressed air, provide pure and dry raw materials for the oxygen generation system, and ensure the long-term stable and reliable operation of the system.
Main components of oxygen generator: it is composed of adsorption tower, valve, instrument, control system and pipeline. Oxygen and nitrogen separation is realized through pressure swing adsorption. Two attachment towers are set in the system, one for adsorption and oxygen production, and the other for desorption and regeneration. The cycle is alternating to continuously produce oxygen.
Oxygen purification and pressurization system: it is composed of booster, oxygen storage tank and control system. After sterilization and dust removal filter, it outputs oxygen source meeting medical standards.
Standby oxygen system: it is composed of busbar, oxygen cylinder and instrument to ensure the uninterrupted oxygen consumption requirements of users.
Medical gas system:
Medical gas system is a complete set of devices that provide medical gas or exhaust waste gas and waste liquid to patients and medical equipment.
(1) Medical gas is the life support system of the hospital and the key drug of the hospital.
(2) Medical gas is a kind of medicine.
(3) Safety of medical gas: continuous gas supply, sufficient flow and pressure; Gas identification and gas quality.
In the medical gas system, two-way gas supply is often used for manual and automatic switching to ensure continuous gas supply.
The gas terminal must have sufficient gas volume, stable pressure and adjustable flow.
The gas station of general hospital shall be fully prepared for medical gas consumption for at least 3 days.
In order to use gas safely, gas pipelines and terminals are generally marked with different colors and signs to distinguish various medical gases. In addition, the wrong gas is prevented by the method that the terminal plugs and sockets of different gases cannot be interchanged.
