Application of the hottest medical PSA oxygen prod

Application of medical pressure swing adsorption oxygen production equipment in hospitals

selection of hospital oxygen supply mode

modern hospital oxygen supply basically adopts centralized oxygen supply, and the way of oxygen bottles entering the ward or operating room directly is gradually eliminated. Centralized oxygen supply can be basically divided into the following three ways:

1. Centralized oxygen supply by bottle oxygen through oxygen manifold decompression

2. The liquid oxygen storage tank vaporizes, depressurizes and stabilizes the pressure through the liquid oxygen vaporizer, and then supplies oxygen intensively

3. medical oxygen is produced by pressure swing adsorption oxygen production equipment and continuously supplied

the first method is basically adopted in the early centralized oxygen supply. In the late 1980s, with the increase of large oxygen generators and the construction of a large number of professional gas supply stations with various capital investments at home and abroad, liquid oxygen vaporization has gradually become an important way of oxygen supply for regional hospitals with rich oxygen sources. Since the 1990s, with the maturity of PSA technology, compared with the centralized oxygen supply of steel cylinder busbar and the centralized oxygen supply of liquid oxygen vaporization, this hospital has its own oxygen production equipment, and the economic, convenient, safe and reliable oxygen supply method has immediately been favored by hospitals, becoming the first choice of large and medium-sized hospitals, and rapidly popularized. In some marginal provinces, hospitals with remote oxygen sources and inconvenient transportation are also the most suitable way to choose PSA oxygen production equipment for oxygen supply. As long as there is electricity to produce qualified medical oxygen, this way of oxygen supply saves a lot of human, material and financial resources. About the advantages and disadvantages of the above three methods of medical oxygen supply, many articles have made a comparative summary, which will not be repeated here. Whether in western developed countries or China, it is a general trend for hospitals to choose medical pressure swing adsorption oxygen generation equipment for oxygen supply

requirements and relevant precautions for the second oxygen generation station

requirements for the oxygen generation station

the air or oxygen pressure of the medical pressure swing adsorption oxygen generation equipment belongs to the low-pressure range. Oxygen is a combustion supporting gas, not a flammable gas such as hydrogen. The state or industry has not made special regulations or corresponding specifications for the oxygen generation station where the medical pressure swing adsorption oxygen generation equipment is used as the oxygen source. Hospitals can adapt to local conditions, The oxygen generation station can be arranged on the ground or in the basement. The medical PSA oxygen generation equipment of Ruiqi air separation equipment Co., Ltd. is designed as a skid mounted structure, which covers a small area. The ground in the oxygen generation station only needs to be flat. There are no special requirements, as long as you connect the power supply and connect the oxygen generation equipment to the central oxygen supply system of the hospital. However, because oxygen is a combustion supporting gas and has a certain pressure, the oxygen generation station must take necessary safety measures

2 safety matters

2.1 oxygen generation equipment is an important equipment of the hospital. Except for the staff in the oxygen generation station, no other people are allowed to enter the room at will

2.2 it is strictly forbidden to smoke and use fire in the battery limit of the oxygen generation station. When fire is needed for the maintenance of containers or pipelines, safety measures must be taken and the construction can be carried out after being checked and approved by the Safety Technology Department of the hospital

2.3 the battery limit of the oxygen generation station shall be kept clean and tidy. Inflammables and explosives are not allowed to be stacked, and objects are not allowed to be stacked on the pedestrian passage to ensure that the road is unblocked

2.4 operators must undergo safety education and learning and practice of operation methods before taking up their posts, and can only take up their posts after independently mastering the operation methods of oxygen production equipment

2.5 operators must dress neatly before going on duty. It is strictly forbidden to bring inflammables and explosives into the oxygen generation station and operate in strict accordance with the provisions of the operation manual

2.6 warning signs and safety signs such as "no fireworks", "pay attention to safety" must be marked at the entrance to the gate of the oxygen generation station and at eye-catching places in the oxygen generation station to warn

2.7 at least four "1121" or "1301" small dry powder fire extinguishers should be equipped in the oxygen generation station

2.8 the oxygen generation station is equipped with a group of grounding and lightning protection devices, and the buried depth of the grounding electrode and the requirements of grounding resistance are carried out in accordance with relevant regulations

2.9 the pressure gauge used in oxygen production equipment should be calibrated once a year and sealed with lead after passing the test

2.10 no pressure related maintenance work shall be carried out on the equipment before pressure relief. Pay attention to safety during pressure relief

2.11 the air tightness of equipment pipelines and pipe fittings should be checked every two weeks. If air leakage is found, it should be repaired in time. Only after it is qualified can it be started

2.12 intrinsically safe circuits are recommended for the lighting and ventilation facilities in the filling room of the oxygen generation station

2.13 each set of equipment is debugged and qualified before leaving the factory, and attached with a certificate of conformity, but it can not completely prevent damage during transportation and loading and unloading, so all aspects of the system should be carefully checked before the first startup to prevent failure

2.14 the raw material used in the oxygen generation equipment is air, and the air around the oxygen generation station should be kept free from pollution

3 technical conditions for use and installation

3.1 good ventilation should be ensured in the oxygen generation station. The air inlet of the air compressor should be clean and pollution-free, and the indoor temperature should be maintained at 5 ~ 38 ° C

3.2 the power supply of the distribution box is a three-phase power supply (three-phase four wire, plus a ground wire), 380V, 50Hz, and the power is not equal to the capacity required by the oxygen production equipment

3.3 the pollutants discharged from the sewage outlet should be discharged outdoors to avoid polluting the site

3.4 see the layout plan and other documents for the installation requirements of oxygen production equipment (such as equipment layout)

3.5 the ground on which the equipment is placed is flat without special requirements

4 storage and transportation storage conditions

4.1 the oxygen making equipment shall be protected from inversion, collision, rain and violent vibration during transportation

4.2 the packaged oxygen generating equipment should be stored in a well ventilated room with a relative humidity of no more than 80%, free of corrosive gases

three characteristics of oxygen in hospitals

in hospitals, oxygen is a matter of vital importance. Anesthesia machines, ventilators, ICU Wards, hyperbaric oxygen chambers, emergency rooms, general wards, etc. are likely to use oxygen to rescue or treat patients 24 hours a day, which requires the central oxygen supply system to continuously supply medical oxygen with qualified pressure, flow and purity

1 characteristics of oxygen use in anesthesia machine, ventilator and ICU ward

icu ward is the intensive care unit, which is actually the oxygen use of ventilator. The oxygen used by anesthesia machines and ventilators basically has the following characteristics:

1.1 oxygen supply time

anesthesia machines and ventilators are used for surgery or rescue of critical patients, while ventilators used in ICU Wards may use ventilators to maintain the lives of patients, so it is necessary to ensure continuous oxygen supply at all times, because the strain of elastic elements is in direct proportion to the size of external force P

1.2 oxygen supply pressure

the oxygen use pressure of domestic or imported anesthesia machines and ventilators is mostly within 0.4MPa gauge pressure. If the oxygen alarm pressure is lower than 0.3MPa ~ 0.4MPa (the products of various manufacturers are slightly different), it will alarm. In order to ensure its normal use pressure, the oxygen output pressure of general oxygen production equipment should not be less than 0.45MPa

1.3 oxygen supply flow

the normal gas supply flow of the anesthesia machine is 0 ~ 10l/min, and the congestion begins in the direction of part of the four Expressway sections entering Beijing, with the gas supply flow of 35 ~ 75L/min. Generally, the flow ratio of oxygen and nitrous oxide is 1:3, that is, the normal oxygen flow of an anesthesia machine is 0 ~ 3l/min, and the rapid oxygen supply flow is about 15L/min

the demand between ICU magnet and self powered static load system is very small, but the independent flow of oxygen for ventilator in air gap ward, emergency room and operating room is about 10L/min. In fact, the oxygen flow and pressure of medical devices such as anesthesia machines and ventilators are closely related. Especially when the instantaneous oxygen consumption is large, if the total oxygen flow is insufficient, the oxygen pressure of the central oxygen supply system will drop, even lower than the lower limit alarm pressure of the oxygen medical device, affecting the use of oxygen medical devices

2 characteristics of oxygen use in hyperbaric oxygen chamber

hyperbaric oxygen has the following characteristics: ① hyperbaric oxygen can increase the physical dissolved oxygen in blood and tissues, so under hyperbaric oxygen, bloodless life can be achieved, that is, the red blood cells in animals can be removed, and under hyperbaric oxygen, animals' life is stable. ② Hyperbaric oxygen can increase the penetration of oxygen, which can treat local tissue and cell hypoxia caused by vascular obstruction, vasospasm, or cell edema. ③ Hyperbaric oxygen can increase the oxygen reserve in the tissue and improve the body's tolerance to hypoxia, so that the body can win time through the dangerous period. Under hyperbaric oxygen, heart surgery can be performed without cardiopulmonary bypass. ④ Hyperbaric oxygen can kill anaerobic bacteria and has a good therapeutic effect on gas gangrene. ⑤ Hyperbaric oxygen can compress the trapped gas in the body, and has a unique effect on the treatment of respiratory tract obstruction caused by bubbles in irritating toxic gas poisoning, and the treatment of decompression disease, flatulence, and intestinal gas cyst disease. However, the above medical effects cannot be achieved with atmospheric oxygen treatment, so many hospitals are now equipped with hyperbaric oxygen chambers. According to the statistics of the national hyperbaric oxygen medical academic committee, in June 1982, there were only 116 oxygen tanks in the country. By May 1991, there were more than 880 oxygen tanks of various types. So far, it is estimated that there are more than 1000 oxygen tanks in the country

the oxygen consumption of hyperbaric oxygen chamber is characterized by large instantaneous oxygen consumption and high oxygen pressure. Generally speaking, the oxygen pressure entering the oxygen chamber is not less than 0.55mpa, so oxygen inhalation is more comfortable and effortless. If the oxygen pressure is lower than 0.5MPa, it will be difficult to breathe oxygen, so I feel bad. Generally, the oxygen pressure should not be lower than 0.55mpa. Some hyperbaric oxygen chambers do not need to wear oxygen masks. The oxygen pressure can be lower, usually 0.4MPa. The oxygen flow rate of hyperbaric oxygen chamber is usually not less than 10l/min per person, depending on how many hospitals have and have wonderful ways to deal with this great enemy, less Taiwan hyperbaric oxygen chamber, which is divided into several people. Based on this, the maximum oxygen consumption of hyperbaric oxygen chamber is calculated. Similarly, the oxygen flow and pressure of hyperbaric oxygen chamber are also closely related. If the oxygen flow is insufficient, the oxygen pressure will also drop

3 characteristics of oxygen use in general wards

oxygen use in general wards refers to patients taking oxygen under normal pressure. Atmospheric oxygen can increase the oxygen saturation in the blood. When the patient has dyspnea due to heart, lung or central nervous system and other reasons, resulting in abnormal blood oxygen saturation, atmospheric oxygen treatment is usually carried out, and the effect is obvious

the national medical standard yy/t "general technical conditions for medical central oxygen supply system" stipulates that patients in general wards breathe oxygen, and the terminal oxygen pressure of the ward is not less than 0.2MPa. In other words, if the oxygen pressure is greater than 0.2MPa, the pressure is relatively easy to reach. Generally speaking, the oxygen flow of each oxygen inhalation terminal is 3L/min ~ 5L/min. due to the large number of ordinary wards, the oxygen consumption is generally large

by analyzing the oxygen use characteristics of medical devices such as anesthesia machines and ventilators, hyperbaric oxygen chambers and general wards, how to choose the flow and pressure of product oxygen when configuring oxygen production equipment should be based on the specific situation and recent development of hospitals with oxygen medical devices, hyperbaric oxygen chambers and general oxygen inhalation terminals. Including the diameter of the oxygen pipe of the central oxygen supply system should be comprehensively considered. Ensure that the hospital can use oxygen safely

the medical molecular sieve oxygen production equipment of Ruiqi air separation equipment Co., Ltd. can provide oxygen output pressures of 0.5MPa and 0.8MPa according to the oxygen consumption pressure of the hospital (it is found that only Ruiqi can directly achieve 0.8MPa without pressurization, and other manufacturers can only achieve 0.5MPa.) There are two specifications, and the oxygen flow is medical oxygen production equipment of various specifications, which can meet the oxygen demand of large, medium and small hospitals

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