Oxygen supply system, multifunctional oxygen generator and oxygen station

Abstract

The utility model relates to the field of medical equipment, and discloses an oxygen supply system, a multifunctional oxygen generator and an oxygen station, the oxygen supply system comprises an air compression module (101), a controllable oxygen module (102), an oxygen uptake output module (104) and a pressurization oxygenation module (105), the oxygen inhalation output module (104) is arranged to be capable of receiving the product gas from the controllable oxygen module (102) and outputting oxygen therapy gas suitable for being directly inhaled by a user; the pressurization oxygenation module (105) is arranged to be capable of receiving the product gas from the controllable oxygen module (102) and filling the product gas into an oxygenation container. A user can obtain oxygen therapy gas suitable for being directly inhaled through the oxygen inhalation output module and can also fill the oxygen filling container with the product gas through the pressurization oxygen filling module, the convenience for people to obtain oxygen is remarkably improved, oxygen therapy is more widely integrated into the life of more people, and the life quality and the working state of people are improved.

Description

Technical Field

[0001] The utility model relates to medical equipment, in particular to an oxygen supply system. On this basis, the utility model also relates to a multifunctional oxygen generator and an oxygen station comprising the oxygen supply system. Background Art

[0002] In the absence of oxygen, people will experience headaches, nausea, shortness of breath, nasopharyngeal discomfort, irritability and other emotional problems, which will not only affect the quality of normal work, study and life, but also physical health is a key issue that cannot be missed. Therefore, it is particularly important to enable more people to obtain clean oxygen conveniently, safely, quickly and effectively.

[0003] At present, there are two main ways for people to obtain clean oxygen:

[0004] The first is to use an oxygen concentrator, which is suitable for indoor use. However, a device can only be used by one person at a time and cannot be shared by multiple people at the same time. The device will occupy a certain space when working, and there will be a certain degree of noise during the oxygen production process. When multiple people need to breathe oxygen at the same time, multiple oxygen concentrators are required to work at the same time. The noise they produce will not only affect the quietness of the working and living environment, but also the use and maintenance costs of multiple devices are very high.

[0005] The second type is mainly used in hospitals or other medical places, using large medical oxygen filling equipment or high-pressure gas cylinders to inflate small oxygen bags or oxygen cylinders. Due to the limited storage capacity of oxygen cylinders and oxygen bags, hospitals are generally far away and inconvenient, and are not suitable for people's regular oxygen therapy. Moreover, medical high-pressure gas cylinder canning equipment is a large-scale equipment that occupies a large area and is not suitable for deployment near people's living areas.

[0006] Therefore, it is necessary to provide a small portable oxygen station with fast oxygen output and capable of simultaneously meeting the functions of oxygen production, oxygen inhalation, oxygen compression and oxygen filling, so that people can simply and conveniently inhale or fill oxygen. Utility Model Content

[0007] The purpose of the utility model is to provide an oxygen supply system, which integrates oxygen production, oxygen inhalation, oxygen compression and oxygen filling. It can be used to provide oxygen therapy to users and can also be used for rapid filling of oxygen filling containers such as oxygen bags and oxygen cylinders. It is convenient to share with multiple people by being arranged in public areas such as hospitals, communities, shopping malls, schools, office buildings, airports and railway stations, greatly improving the convenience of people's acquisition of oxygen, making oxygen therapy more widely integrated into the lives of more people, and improving people's quality of life and working conditions.

[0008] In order to achieve the above object, the utility model provides an oxygen supply system, comprising:

[0009] an air compression module configured to form pressurized air by pressurizing ambient air;

[0010] a controllable oxygen module for receiving pressurized air from the air compression module and for producing product gas; and,

[0011] An oxygen absorption output module and a pressurized oxygen filling module, wherein the oxygen absorption output module is configured to receive the product gas from the controllable oxygen module and output oxygen therapy gas suitable for direct inhalation by the user; the pressurized oxygen filling module is configured to receive the product gas from the controllable oxygen module and fill the product gas into the oxygen filling container.

[0012] Preferably, it also includes a ratio control module connected between the controllable oxygen module and the oxygen absorption output module and the pressurized oxygenation module. The ratio control module is configured to be able to adjust the distribution ratio of the product gas delivered by the controllable oxygen module between the oxygen absorption output module and the pressurized oxygenation module, so as to selectively realize an oxygen absorption mode in which only the oxygen absorption output module outputs oxygen, an oxygenation mode in which only the pressurized oxygenation module outputs oxygen, and a common mode in which both the oxygen absorption output module and the pressurized oxygenation module output oxygen.

[0013] Preferably, the air compression module comprises a variable frequency air compressor for pressurizing ambient air and at least some of the following components:

[0014] An air intake filter and / or an air intake silencer arranged upstream of the variable frequency air compressor;

[0015] A cooling fan for causing airflow to flow through the variable frequency air compressor;

[0016] An air cooler and / or an air balance tank are arranged downstream of the variable frequency air compressor.

[0017] Preferably, the oxygen absorption output module includes at least some of the following components:

[0018] a pressure regulating valve, the pressure regulating valve being configured to reduce the pressure of the product gas from the product gas output gas path;

[0019] a humidification cup adapted to humidify the product gas from the controllable oxygen module;

[0020] Bacteria filter;

[0021] Flow control valve;

[0022] Oxygen inhalation check valve.

[0023] Preferably, the pressurized oxygen filling module is suitable for connecting to an oxygen filling bag and / or an oxygen filling cylinder and comprises at least some of the following components:

[0024] a variable frequency oxygen compressor configured to pressurize product gas from the controllable oxygen module;

[0025] An oxygen-filled oxygen storage tank, wherein a pressure sensor is installed on the oxygen-filled oxygen storage tank;

[0026] An inflation flow control valve for controlling the inflation flow.

[0027] Preferably, the controllable oxygen module comprises: an air intake circuit for receiving pressurized air, an oxygen production unit for producing product gas, and a product gas output circuit for outputting the produced product gas, which are connected in sequence;

[0028] The oxygen production unit includes a plurality of molecular sieve adsorption units arranged in groups.

[0029] Preferably, the controllable oxygen module also includes: a first control valve group and a desorption waste gas exhaust gas path, the first control valve group is arranged between the air intake gas path and the desorption waste gas exhaust gas path, the first control valve group can be controlled so that the air intake gas path is selectively connected to the first port of a part of the molecular sieve adsorption unit to allow the pressurized air formed by the air compression module to pass into the molecular sieve adsorption unit through the air intake gas path, and the desorption waste gas exhaust gas path is connected to the first port of another part of the molecular sieve adsorption unit to allow the desorption waste gas generated in the molecular sieve adsorption unit to be discharged outward through the desorption waste gas exhaust gas path.

[0030] Preferably, the controllable oxygen module further comprises: a second control valve group, the second control valve group being arranged between the second port of the molecular sieve adsorption unit and the product gas output gas path, so as to allow the product gas produced by the molecular sieve adsorption unit to be transported to the product gas output gas path through the second port; and / or,

[0031] The product gas output gas path is provided with a finished oxygen storage tank located downstream of the second control valve group and used for storing the product gas.

[0032] Preferably, the controllable oxygen module comprises:

[0033] The second control valve group includes a one-way valve respectively arranged on the product gas exhaust branch and the one-way air inlet thereof faces the second port of the corresponding molecular sieve adsorption unit, and / or a product gas exhaust branch respectively connected to the second port of each molecular sieve adsorption unit and the product gas output gas path.

[0034] connected to a throttling ventilation branch between the second ports of different molecular sieve adsorption units, the second control valve group includes throttle valves respectively arranged on the throttling ventilation branch, and / or

[0035] The second control valve group is connected to the pressure-equalizing ventilation branch between the second ports of different molecular sieve adsorption units, and includes pressure-equalizing valves respectively arranged on the pressure-equalizing ventilation branch.

[0036] Preferably, a nitrogen exhaust silencer is provided on the desorption waste gas exhaust gas path, and / or the controllable oxygen module includes a plurality of groups of molecular sieve adsorption units that share at least part of the air intake gas path, the desorption waste gas exhaust gas path and the product gas output gas path, and each group of the molecular sieve adsorption units respectively includes a pair of the molecular sieve adsorption units.

[0037] Preferably, the air intake path is provided with a bypass joint for outputting pressurized air.

[0038] A second aspect of the utility model provides a multifunctional oxygen generator comprising the above oxygen supply system.

[0039] A third aspect of the utility model provides an oxygen station comprising the above oxygen supply system.

[0040] Through the above technical solution, the oxygen supply system of the utility model can form pressurized air by pressurizing ambient air through the air compression module, and supply the pressurized air to the controllable oxygen module for oxygen production, and the obtained product gas is transported to the oxygen absorption output module and / or the pressurized oxygen filling module. Users can obtain oxygen therapy gas suitable for direct inhalation through the oxygen absorption output module, and can also use the pressurized oxygen filling module to fill the product gas into the oxygen filling container, which significantly improves the convenience of people obtaining oxygen. By arranging oxygen stations with the oxygen supply system in public areas such as hospitals, communities, shopping malls, schools, office buildings, airports and railway stations, the oxygen supply system can be shared by multiple people, so that oxygen therapy can be more widely integrated into the lives of more people, improving people's quality of life and working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is a schematic diagram of an oxygen supply system according to a preferred embodiment of the utility model;

[0042] Figure 2 yes Figure 1 Schematic diagram of the air compression module of the oxygen supply system;

[0043] Figure 3 yes Figure 1 Schematic diagram of the controllable oxygen module of the oxygen supply system;

[0044] Figure 4 yes Figure 1 Schematic diagram of the connection between the proportion control module of the oxygen supply system, the oxygen absorption output module and the pressurized oxygenation module;

[0045] Figure 5 yes Figure 1 Schematic diagram of the oxygen output module of the oxygen supply system;

[0046] Figure 6 yes Figure 1 Schematic diagram of the booster oxygenation module of the oxygen supply system.

[0047] Description of Reference Numerals

[0048] 1-intake filter; 2-intake silencer; 3-frequency conversion air compressor; 4-cooling fan; 5-air cooler; 6-air balance tank; 7, 9, 11, 13-air intake control valve; 8, 10, 12, 14-desorption exhaust gas control valve; 15, 16, 17, 18-molecular sieve adsorption unit; 19, 20-throttle valve; 21, 22-equalizing pressure valve; 23, 24, 25, 26-check valve; 27-finished oxygen storage tank; 28-proportional control valve; 29-pressure regulating valve; 30-bacterial filter; 31-flow regulating valve ;32- oxygen concentration sensor;33- oxygen absorption check valve;34- oxygen outlet interface;35- humidification cup;36- nitrogen exhaust silencer;37- variable frequency oxygen compressor;38- turbine cooling fan;39- oxygen storage tank;40- pressure sensor;41- oxygen filling check valve;42- filling flow control valve;43- filling oxygen bag;44- filling oxygen cylinder;L1- air intake air path;L2- desorption waste gas exhaust air path;L3- product gas output air path;L31- product gas exhaust branch;L32- throttling ventilation branch;L33- equal pressure ventilation branch.

[0049] 101-air compression module; 102-controllable oxygen module; 103-proportional control module; 104-oxygen absorption output module; 105-pressurized oxygen filling module. DETAILED DESCRIPTION

[0050] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0051] Reference Figure 1As shown, the utility model provides an oxygen supply system, which includes an air compression module 101, a controllable oxygen module 102, an oxygen absorption output module 104 and a pressurized oxygen filling module 105. The air compression module 101 is configured to form pressurized air by pressurizing ambient air; the controllable oxygen module 102 can receive the pressurized air from the air compression module 101, and use the pressurized air to produce product gas, the main component of which is oxygen; the oxygen absorption output module 104 can receive the product gas from the controllable oxygen module 102, and output oxygen therapy gas suitable for direct inhalation by the user; the pressurized oxygen filling module 105 can receive the product gas from the controllable oxygen module 102, and fill the product gas into an oxygen filling container such as an oxygen filling bag 43 or an oxygen filling cylinder 44.

[0052] Thus, the oxygen supply system can form pressurized air by pressurizing ambient air by the air compression module 101, and supply the pressurized air to the controllable oxygen module 102 for oxygen production, and the produced oxygen is delivered to the oxygen absorption output module 104 and / or the pressurized oxygen filling module 105. The user can obtain oxygen therapy gas suitable for direct inhalation through the oxygen absorption output module 104, and can also use the pressurized oxygen filling module 105 to fill the product gas into the oxygen filling container, which significantly improves the convenience of people obtaining oxygen. By arranging oxygen stations with the oxygen supply system in public areas such as hospitals, communities, shopping malls, schools, office buildings, airports and railway stations, the oxygen supply system can be shared by multiple people, so that oxygen therapy can be more widely integrated into the lives of more people, and people's quality of life and work status can be improved.

[0053] Typically, the controllable oxygen module 102 may include an oxygen producing unit, an air intake path L1 connected to the air compression module 101 and capable of delivering pressurized air to the oxygen producing unit, and a product gas output path L3 for outputting the product gas produced by the oxygen producing unit, so that the pressurized air generated by the air compression module 101 can be received through the air intake path L1, and the product gas mainly containing oxygen is generated by the pressurized air through adsorption or the like, and then output to the oxygen absorption output module 104 and / or the pressurized oxygen filling module 105 through the product gas output path L3.

[0054] As one of the core modules of the oxygen supply system, the design of the controllable oxygen module 102 has an important impact on meeting the oxygen production demand. In particular, the controllable oxygen module 102 can be configured to continuously produce oxygen, so that people can get the required oxygen at any time.

[0055] like Figure 3As shown, in a preferred embodiment of the utility model, the controllable oxygen module 102 may include a plurality of molecular sieve adsorption units arranged in groups (such as the first molecular sieve adsorption unit 15, the second molecular sieve adsorption unit 16, the third molecular sieve adsorption unit 17 and the fourth molecular sieve adsorption unit 18 shown in the figure), an air intake air path L1 and a desorption waste gas exhaust air path L2 and a product gas output air path L3, and a first control valve group is provided between the air intake air path L1 and the desorption waste gas exhaust air path L2 and the molecular sieve adsorption unit. In the preferred embodiment shown in the figure, the first molecular sieve adsorption unit 15 and the second molecular sieve adsorption unit 16 are arranged as a group, and the third molecular sieve adsorption unit 17 and the fourth molecular sieve adsorption unit 18 are arranged as a group; the first control valve group includes a first air intake control valve 7, a first desorption waste gas exhaust control valve 8, a second air intake control valve 9, a second desorption waste gas exhaust control valve 10, etc., which will be described in detail later.

[0056] The first control valve group can be controlled to selectively connect the air intake air path L1 to the first port of a part of the molecular sieve adsorption units, and connect the desorption waste gas exhaust air path L2 to the first port of another part of the molecular sieve adsorption units. Thus, the pressurized air generated by the air compression module 101 compressing the ambient air can be transported to the connected molecular sieve adsorption units through the air intake air path L1; at the same time, the desorption waste gas generated by backwashing and cleaning another part of the molecular sieve adsorption units can be discharged through the desorption waste gas exhaust air path L2. For example, the first control valve group can be controlled to make the air intake air path L1 connected to the first molecular sieve adsorption unit 15 and the third molecular sieve adsorption unit 17, and make the desorption waste gas exhaust air path L2 connected to the second molecular sieve adsorption unit 16 and the fourth molecular sieve adsorption unit 18, so that the pressurized air can be transported to the first molecular sieve adsorption unit 15 and the third molecular sieve adsorption unit 17 through the air intake air path L1, so that the nitrogen and other components in the air can be adsorbed through the molecular sieve bed (such as zeolite molecular sieve) therein to produce oxygen. At the same time, by back-blowing the second molecular sieve adsorption unit 16 and the fourth molecular sieve adsorption unit 18, the molecular sieve bed therein can be back-blown and cleaned, and the desorption waste gas generated is discharged through the desorption waste gas exhaust air path L2, and the second molecular sieve adsorption unit 16 and the fourth molecular sieve adsorption unit 18 after desorption can be used to prepare oxygen. In this way, multiple molecular sieve adsorption units in the same group can be operated alternately during use, thereby achieving continuous oxygen production.

[0057] The product gas output gas path L3 is connected to the second port of the molecular sieve adsorption unit, so that when the air inlet gas path L1 introduces pressurized air into the molecular sieve adsorption unit, at least part of the product gas generated is transported outward through the product gas output gas path L3.

[0058] The controllable oxygen module 102 can control the connection relationship between the first ports of multiple molecular sieve adsorption units arranged in groups and the air intake air path L1 and the desorption waste gas exhaust air path L2 by the first control valve group, so that while air is supplied to a part of the molecular sieve adsorption units through the air intake air path L1 for oxygen production, the molecular sieve beds in another part of the molecular sieve adsorption units are backwashed and cleaned, and the generated desorption waste gas is discharged through the first port and the desorption waste gas exhaust air path L2. In this way, multiple molecular sieve adsorption units can operate alternately to achieve continuous oxygen production, and the product gas output air path L3 can keep transporting the produced product gas to the outside, so that people can obtain the oxygen required for oxygen therapy from the oxygen station including the controllable oxygen module 102 at any time.

[0059] As mentioned above, the controllable oxygen module 102 shown in the figure schematically shows two groups of molecular sieve adsorption units, and each group of molecular sieve adsorption units includes a pair of molecular sieve adsorption units such as molecular sieve adsorption towers. Thus, through the first control valve group, it can be controlled so that one molecular sieve adsorption unit in each group produces oxygen while the molecular sieve bed of another molecular sieve adsorption unit is backwashed and cleaned, so as to achieve continuous oxygen production through alternating operations. In an alternative embodiment, one or more groups of molecular sieve adsorption units may include three or more molecular sieve adsorption units, and continuous oxygen production can also be achieved by controlling a part of the molecular sieve adsorption units in each group to produce oxygen while backwashing and cleaning the molecular sieve beds of all or part of the remaining molecular sieve adsorption units.

[0060] In addition, for multiple groups of molecular sieve adsorption units, each group can share at least part of the air inlet gas path L1, the desorption waste gas exhaust gas path L2 and the product gas output gas path L3. For example, in the part far away from the first port and the second port, the air, desorption waste gas and product gas can be transported through the shared gas path section respectively, so as to simplify the gas path structure in the controllable oxygen module 102.

[0061] The above-mentioned first control valve group and the second control valve group described later, which is arranged between the product gas output gas path L3 and the second port of the molecular sieve adsorption unit, can be a combination of a multi-way valve and / or a single valve that can realize the on-off control of the gas path. In the preferred embodiment shown in the figure, the first control valve group and the second control valve group respectively include a plurality of single valves arranged on the corresponding gas path branches, such as pneumatic valves / unit single-way solenoid valves, one-way valves, needle valves, etc. Specifically, the first control valve group can include a first air intake control valve 7 and a first desorption waste gas exhaust control valve 8 corresponding to the first molecular sieve adsorption unit 15, a second air intake control valve 9 and a second desorption waste gas exhaust control valve 10 corresponding to the second molecular sieve adsorption unit 16, a third air intake control valve 11 and a third desorption waste gas exhaust control valve 12 corresponding to the third molecular sieve adsorption unit 17, and a fourth air intake control valve 13 and a fourth desorption waste gas exhaust control valve 14 corresponding to the fourth molecular sieve adsorption unit 18. Among them, each desorption exhaust gas exhaust control valve and the corresponding air intake control valve can maintain opposite opening and closing states to each other. For example, when the first air intake control valve 7 is in an open state, the first desorption exhaust gas exhaust control valve 8 is in a disconnected state, so that the first molecular sieve adsorption unit 15 is in an oxygen production operation mode. When necessary, each desorption exhaust gas exhaust control valve and the corresponding air intake control valve can also have other opening and closing states, such as being in a disconnected state at the same time, so as to avoid affecting the normal operation of other molecular sieve adsorption units during maintenance or to achieve the pressure equalization process described later.

[0062] The exhaust gas path L2 of the desorbed waste gas may be provided with a nitrogen exhaust silencer 36, and the desorbed waste gas is discharged into the atmosphere after passing through the nitrogen exhaust silencer 36, and the noise level can be effectively reduced by, for example, impedance composite silencer, so that the oxygen station equipped with the oxygen supply system of the utility model can be arranged in public areas such as hospitals, communities, shopping malls, schools, office buildings, airports and railway stations.

[0063] The product gas (mainly oxygen) obtained by adsorbing the pressurized air can be transported outward in whole or in part through the product gas output gas path L3. In a more preferred embodiment of the utility model, part of the obtained product gas is used to backwash and clean the molecular sieve adsorption unit whose molecular sieve bed is close to saturation, so there is no need to set up an additional backwash device. To this end, the controllable oxygen module 102 may include a second control valve group arranged on the product gas output gas path L3, and the second control valve group is arranged to enable the second port of the molecular sieve adsorption unit connected to the air intake gas path L1 to be interconnected with the second port of the molecular sieve adsorption unit connected to the desorption waste gas exhaust gas path L2, so that at least part of the product gas generated by the molecular sieve adsorption unit connected to the air intake gas path L1 can be passed from the second port to the molecular sieve adsorption unit connected to the desorption waste gas exhaust gas path L2, and the molecular sieve adsorption unit is backwashed and cleaned. For example, when the first air intake control valve 7 and the second desorption waste gas exhaust control valve 10 are in an open state, and the first desorption waste gas exhaust control valve 8 and the second air intake control valve 9 are in a disconnected state, the first port of the first molecular sieve adsorption unit 15 is connected to the air intake air path L1, and the first port of the second molecular sieve adsorption unit 16 is connected to the desorption waste gas exhaust air path L2, and the first molecular sieve adsorption unit 15 adsorbs the pressurized air introduced from the air intake air path L1 to produce product gas, wherein at least part of the product gas is discharged from the second port of the first molecular sieve adsorption unit 15 and then introduced into the second molecular sieve adsorption unit 16 through the second port of the second molecular sieve adsorption unit 16, so as to backflush and clean the molecular sieve bed in the second molecular sieve adsorption unit 16, thereby eliminating the need to set up a separate backflush device for the molecular sieve adsorption unit to be cleaned.

[0064] The second port of the molecular sieve adsorption unit connected to the air intake air path L1 can also be connected to the air intake air path L1 while being interconnected with the second port of the molecular sieve adsorption unit connected to the desorption waste gas exhaust gas path L2. Thus, when pressurized air is introduced into the molecular sieve adsorption unit through the air intake air path L1, a part of the generated product gas is transported outward through the product gas output gas path L3, and another part of the product gas is introduced into other molecular sieve adsorption units to backwash and clean the molecular sieve beds therein, and the generated desorption waste gas is discharged through the desorption waste gas exhaust gas path L2.

[0065] Further, the product gas output gas path L3 controllable oxygen module 102 may include a product gas exhaust branch L31 corresponding to the second port connected to each molecular sieve adsorption unit and the product gas output gas path L3, and the second control valve group may include a one-way valve respectively arranged on the product gas exhaust branch L31, with the one-way air inlet facing the second port of the corresponding molecular sieve adsorption unit. In the illustrated embodiment, the one-way valve 23, the second one-way valve 24, the third one-way valve 25 and the fourth one-way valve 26 respectively corresponding to the first molecular sieve adsorption unit 15, the second molecular sieve adsorption unit 16, the third molecular sieve adsorption unit 17 and the fourth molecular sieve adsorption unit 18 are included. The one-way air inlet refers to the air inlet in the forward ventilation state of the one-way valve, that is, when the air pressure of the one-way air inlet reaches a predetermined value, the one-way valve is opened.

[0066] The controllable oxygen module 102 may further include a throttle ventilation branch L32 connected to the second ports of different molecular sieve adsorption units, and the second control valve group may include throttle valves respectively arranged on the throttle ventilation branch L32. In the illustrated embodiment, it includes a first throttle valve 19 arranged on the throttle ventilation branch L32 connected to the second ports of the first molecular sieve adsorption unit 15 and the second molecular sieve adsorption unit 16, and a second throttle valve 20 arranged on the throttle ventilation branch L32 connected to the second ports of the third molecular sieve adsorption unit 17 and the fourth molecular sieve adsorption unit 18. That is, each throttle ventilation branch L32 is respectively connected to the second ports of the same group of molecular sieve adsorption units, or the grouping of the molecular sieve adsorption units is determined according to whether the throttle ventilation branch L32 is connected between the second ports. The throttle valve can be a needle valve, thereby forming a throttling ventilation branch L32 connected between the second ports of the same group of molecular sieve adsorption units to form a needle-type throttling bridge. The product gas generated by one part of the molecular sieve adsorption unit passes through the needle-type throttling bridge into another part of the molecular sieve adsorption unit to backflush the molecular sieve bed therein and clean the molecular sieve bed therein.

[0067] The controllable oxygen module 102 may also include a pressure-equalizing ventilation branch L33 connected to the second ports of different molecular sieve adsorption units, and the second control valve group may include pressure-equalizing valves respectively arranged on the pressure-equalizing ventilation branch L33. In the illustrated embodiment, it includes a first pressure-equalizing valve 21 arranged on the pressure-equalizing ventilation branch L33 connected between the second ports of the first molecular sieve adsorption unit 15 and the second molecular sieve adsorption unit 16, and a second throttle valve pressure-equalizing valve 22 arranged on the pressure-equalizing ventilation branch L33 connected between the second ports of the third molecular sieve adsorption unit 17 and the fourth molecular sieve adsorption unit 18. During the switching process of alternating operations, that is, when a part of the molecular sieve adsorption units complete the adsorption process and another part of the molecular sieve adsorption units complete the desorption and regeneration process, the pressures in the different molecular sieve adsorption units can be made equal through the pressure-equalizing ventilation branch L33 to recover part of the gas pressure energy and oxygen with a higher concentration. In the pressure equalization process, each air intake control valve on the air intake air path L1 and each desorption exhaust gas exhaust control valve on the desorption exhaust gas exhaust air path L2 remain disconnected, and the pressure equalization valve on the pressure equalization ventilation branch L33 remains open. For example, the first molecular sieve adsorption unit 15 and the third molecular sieve adsorption unit 17 are in the adsorption stage, and the second molecular sieve adsorption unit 16 and the fourth molecular sieve adsorption unit 18 are in the desorption stage. Before the molecular sieve bed in the first molecular sieve adsorption unit 15 and the third molecular sieve adsorption unit 17 is close to saturation, each air intake control valve and desorption exhaust gas exhaust control valve are closed, and each pressure equalization valve is opened. The first molecular sieve adsorption unit 15 and the third molecular sieve adsorption unit 17 complete the adsorption process, and the second molecular sieve adsorption unit 16 and the fourth molecular sieve adsorption unit 18 complete the desorption regeneration process, and then enter the pressure equalization process, the pressure in the first molecular sieve adsorption unit 15 and the third molecular sieve adsorption unit 17 decreases, and the pressure in the second molecular sieve adsorption unit 16 and the fourth molecular sieve adsorption unit 18 increases. After the pressure equalization process is completed, by controlling the opening and closing state of the first control valve group, the first molecular sieve adsorption unit 15 and the third molecular sieve adsorption unit 17 enter the desorption stage, and the second molecular sieve adsorption unit 16 and the fourth molecular sieve adsorption unit 18 enter the adsorption stage. In this way, the adsorption and desorption processes can be completed alternately, so that clean oxygen can be continuously separated from the air.

[0068] The first control valve group and the second control valve group can be linked and combined with each group of molecular sieve adsorption units for control, and a single adsorption tower and a double adsorption tower can be operated in parallel according to different oxygen demand. Through the above-mentioned first control valve group, the number of adsorption towers involved in oxygen production can be flexibly controlled, and the flexibility of the variable frequency air compressor 3 in the air compression module 101 as described later can be combined to adjust the balance point between oxygen production capacity and power consumption efficiency.

[0069] In a preferred embodiment of the present invention, a finished oxygen storage tank 27 may be further provided on the product gas output gas path L3 of the controllable oxygen module 102, and the finished oxygen storage tank 27 is provided downstream of the second control valve group, and is used to store the product gas generated by the adsorption of air. Thus, the working state of the molecular sieve adsorption unit can be controlled according to the gas storage amount in the finished oxygen storage tank 27 (such as by controlling the working state of the air compression module 101 described later), so that when the user breathes oxygen or oxygenates, there is no need for the molecular sieve adsorption unit to produce oxygen in real time, and the oxygen produced by the molecular sieve adsorption unit can be stored in the finished oxygen storage tank 27.

[0070] In use, the air to be adsorbed is supplied to the controllable oxygen module 102 by the air compression module 101. To this end, the air intake air path L1 can be connected to the air compression module 101, which is configured to form pressurized air by pressurizing ambient air and pass it into the molecular sieve adsorption unit through the air intake air path L1.

[0071] In a preferred embodiment, the combination Figure 1 and Figure 2 As shown, the air compression module 101 includes a variable frequency air compressor 3, which can be a DC variable frequency air compressor, and can obtain pressurized air by compressing ambient air or filtered clean air for use by the controllable oxygen module 102. The variable frequency air compressor 3 can operate at different powers according to the oxygen production demand, so as to obtain the best energy efficiency.

[0072] In addition, the air compression module 101 may also include one or more of an air intake filter 1, an air intake silencer 2, a cooling fan 4, an air cooler 5, and an air balance tank 6. The air intake filter 1 and the air intake silencer 2 are arranged upstream of the variable frequency air compressor 3. The air intake filter 1 can be connected to the air intake nozzle of the variable frequency air compressor 3 through a pipeline to filter the ambient air to ensure that the compressed air compressed by the variable frequency air compressor 3 and entering the subsequent controllable oxygen module 102 remains clean. A resistive silencer structure may be provided in the air intake silencer 2 to filter and eliminate the noise caused by the compressor suction and the friction of the leather cup.

[0073] The cooling fan 4 is used to prevent the variable frequency air compressor 3 from overheating by promoting air flow through the variable frequency air compressor 3. It can be specifically set as a turbo cooling fan. During the operation of the variable frequency air compressor 3, the cooling fan 4 is started to dissipate the heat generated by the current and air compression in the variable frequency air compressor 3 in time to ensure that the compressor maintains a good working condition and service life.

[0074] The air cooler 5 may be connected to the compressed air outlet of the variable frequency air compressor 3 via a pipeline, and may be specifically configured to have a spiral copper tube for heat dissipation, thereby reducing the temperature of the compressed gas.

[0075] In the part adjacent to the controllable oxygen module 102, the air compression module 101 can be provided with an air balance tank 6. For example, the air balance tank 6 can be connected to the air cooler 5 through a pipeline, and the compressed air after cooling by the air cooler 5 can be temporarily stored in the air balance tank 6. Through the setting of the air balance tank 6, on the one hand, the pressure swing adsorption process can obtain a more stable gas volume and pressure supply. On the other hand, when the equipment is used at a higher altitude and low pressure, the compressed air in the air balance tank 6 can be used as a prefabricated buffer gas volume to make up for the loss caused by the low pressure. Combined with the molecular sieve in the molecular sieve adsorption unit, it can be more thoroughly desorbed and desorbed at high altitudes, so as to better ensure that good oxygen production performance is maintained at high altitudes. In addition, when the controllable oxygen module 102 is in the process of equalizing pressure, the air intake control valves on the air intake air path L1 are all kept in the disconnected state, and the compressed air generated by the variable frequency air compressor 3 can also be cached in the air balance tank 6.

[0076] It is understandable that some components in the above-mentioned air compression module 101 are not necessary. For example, in areas of conventional altitudes such as plains, the air cooler 5 and the air balance tank 6 can be omitted. Alternatively, a connecting bypass arranged in parallel with the air balance tank 6 can be provided, and an air control valve can be provided on the connecting bypass. During normal oxygen production, the air balance tank 6 can be closed, and the pressurized air compressed by the variable frequency air compressor 3 is supplied to the molecular sieve adsorption unit through the connecting bypass, and the air balance tank 6 is opened when necessary to supply air simultaneously by the variable frequency air compressor 3 and the air balance tank 6. These components, as components for optimizing oxygen production performance and enhancing stability, can make the equipment more environmentally adaptable. In addition, a bypass connector for outputting pressurized air can be provided on the air balance tank 6 or the air intake air path L1 connected thereto to provide compressed air for air pressurization and atomization.

[0077] Reference Figure 1 and Figure 4As shown, the oxygen supply system of the utility model may further include a ratio control module 103 connected to the product gas output gas path L3, the oxygen absorption output module 104 and the pressurized oxygenation module 105 are respectively connected to the ratio control module 103, and the ratio control module 103 is configured to be able to adjust the distribution ratio of the product gas transported by the product gas output gas path L3 in the oxygen absorption output module 104 and the pressurized oxygenation module 105, so as to selectively realize an oxygen absorption mode in which only the oxygen absorption output module 104 outputs oxygen, an oxygenation mode in which only the pressurized oxygenation module 105 outputs oxygen, and a common mode in which both the oxygen absorption output module 104 and the pressurized oxygenation module 105 output oxygen.

[0078] like Figure 4 As shown, the proportion control module 103 may have two groups of proportion control valves 28, and the oxygen absorption output module 104 and the pressurized oxygen filling module 105 are respectively connected to the two groups of proportion control valves 28. According to the oxygen absorption flow rate and oxygen filling mode selected by the user, the product gas in the oxygen absorption output module 104 and the pressurized oxygen filling module 105 is uniformly distributed and proportioned through the proportion control valve 28. According to the real-time demand for oxygen, the proportion control module 103 divides the product gas from the controllable oxygen module 102 into two paths, one of which will eventually be provided to the oxygen production outlet and connected to the humidification cup 35 for the user to directly absorb oxygen; the other path will eventually be provided to the oxygen filling outlet after secondary compression, and oxygen will be filled into containers such as the oxygen filling bag 43 and the oxygen filling cylinder 44.

[0079] In the oxygen absorption mode, the boost oxygenation module 105 is shunt-off and oxygen is delivered to the oxygen absorption output module 104 according to the oxygen absorption flow rate selected by the user to provide oxygen to the user; in the oxygenation mode, the oxygen absorption output module 104 is shunt-off and the boost oxygenation module 105 fills oxygen into the user's oxygenation container according to the oxygenation container pressure type selected by the user; in the shared mode, the distribution of product gas in the oxygen absorption output module 104 and the boost oxygenation module 105 is adjusted according to the user's selection of oxygen absorption flow rate, so as to meet the user's dual-mode sharing needs, with on-demand distribution and flexible adjustment. When the user selects a large oxygen absorption flow rate, the oxygenation time is relatively long; when the user selects a small oxygen absorption flow rate, the oxygenation time is relatively short.

[0080] Combination Figure 5 The oxygen output module 104 may include a pressure regulating valve 29, a bacterial filter 30, a flow regulating valve 31, an oxygen concentration sensor 32, an oxygen one-way valve 33, an oxygen outlet interface 34 and a humidification cup 35 connected in sequence to provide the user with an oxygen absorption function, with an adjustable flow rate, and provides oxygen concentration, flow monitoring and sterilization filtration functions. The output oxygen can reach medical grade, which is safe and effective. It is understandable that these components of the oxygen output module 104 are not all necessary. The following describes their respective functions in conjunction with the oxygen output process:

[0081] After the finished oxygen distributed by the proportional control valve 28 enters the oxygen absorption output module 104, it is first reduced in pressure by the pressure regulating valve 29 to reach an air pressure suitable for human inhalation; then, it is filtered by the bacterial filter 30 to filter out the tiny bacteria and impurities that may remain in the product gas to ensure the purity of the oxygen breathed by the human body; thereafter, the flow rate of the product gas is adjusted and controlled by the flow regulating valve 31, the oxygen concentration sensor 32 is used to test the oxygen concentration in the product gas, and the oxygen absorption one-way valve 33 can prevent the product gas from backflowing and being inhaled, and finally, it is connected to the user's disposable nasal oxygen tube through the oxygen outlet interface 34 and the humidification cup 35, and the humidified finished gas is delivered to the user to meet the user's oxygen absorption needs.

[0082] Combination Figure 6 The pressurized oxygenation module 105 may include a variable frequency oxygen compressor 37, an oxygenation oxygen storage tank 39, an oxygenation one-way valve 41, and an air charging flow control valve 42 connected in sequence. A turbine cooling fan 38 may be provided on one side of the variable frequency oxygen compressor 37 to promote heat dissipation of the variable frequency oxygen compressor 37 to ensure its good operating state and service life; a pressure sensor 40 may be provided on the oxygenation oxygen storage tank 39 to monitor the product gas pressure in the oxygenation oxygen storage tank 39. The pressurized oxygenation module 105 can compress the product oxygen and provide the user with a high-pressure oxygen container filling function. It can be understood that these components of the pressurized oxygenation module 105 are not all necessary. The following describes their respective functions in conjunction with the pressurized oxygenation process:

[0083] After the finished oxygen distributed by the proportional control valve 28 enters the pressurized oxygenation module 105, it is secondary pressurized by the variable frequency oxygen compressor 37, and the secondary pressurized finished oxygen enters the oxygenation oxygen storage tank 39 for storage. By monitoring the product gas pressure in the oxygenation oxygen storage tank 39 by the pressure sensor 40, on the one hand, a pressure signal can be provided when the oxygenation oxygen storage tank 39 is full to stop gas compression, so that the variable frequency oxygen compressor 37 stops running; on the other hand, a low pressure start signal is provided when the air pressure in the oxygenation oxygen storage tank 39 is insufficient to start the variable frequency oxygen compressor 37. The high-pressure oxygen in the oxygenation oxygen storage tank 39 can be transported backward through the oxygenation check valve 41 to prevent gas backflow. When the pressurized oxygenation function is turned on, the oxygenation flow control valve 42 is opened, and the high-concentration oxygen in the oxygenation oxygen storage tank 39 is used to oxygenate the oxygenation containers such as the filling oxygen bag 43 or the filling oxygen cylinder 44. The oxygenation flow control valve 42 can be set as a proportional valve or other flow control valve, and its opening can be controlled to slowly start the pressure when the filling container is at low pressure, and slowly reduce the pressure when it is about to be full, until it closes when the container is full. This not only improves the safety of oxygenation, but also allows the oxygenation container to be quickly filled with the prefabricated product oxygen in the oxygenation oxygen storage tank 39, thereby realizing a fast filling function and reducing the user's waiting time for oxygenation.

[0084] The oxygen storage tank 39 serves as a temporary storage component for high-pressure product oxygen. It can receive the signal fed back by the pressure sensor 40 to control the start and stop of the variable frequency oxygen compressor 37 according to the signal, so that the variable frequency oxygen compressor 37 does not need to be in a high-load working state for a long time, thereby extending the service life of the compressor.

[0085] The utility model also provides a multifunctional oxygen generator and oxygen station including the above-mentioned oxygen supply system. The multifunctional oxygen generator will include an air compression module, a controllable oxygen module, an oxygen absorption output module and a pressurized oxygen filling module, which are integrated to meet the user's various functional requirements such as oxygen absorption and oxygen filling. The oxygen station including the above-mentioned oxygen supply system can be arranged in public areas such as hospitals, communities, shopping malls, schools, office buildings, airports and railway stations, thereby realizing the sharing of the oxygen supply system by multiple people, making oxygen therapy more widely integrated into the lives of more people, and improving people's quality of life and working conditions. In a preferred embodiment, the oxygen station can have the following technical parameters: the concentration of the produced oxygen can meet the concentration requirement of 93%±3 of the medical oxygen standard, the oxygen production flow rate is 0-10L / min, the compressed oxygen flow rate is 0-5L / min, and the compressed oxygen pressure can reach up to 30Mpa.

[0086] The multifunctional oxygen concentrator or oxygen station of the preferred embodiment of the utility model can have the following advantages:

[0087] (1) Compared with traditional household oxygen concentrators, this oxygen station can be shared in different areas. The multifunctional oxygen concentrator or oxygen station integrates the four functions of oxygen production, oxygen inhalation, oxygen compression and oxygen filling. It can be used to provide oxygen therapy to users and can also be used to quickly fill oxygen storage containers such as oxygen bags and oxygen cylinders, so that people can freely inhale oxygen anytime and anywhere after filling. Even if multiple people are undergoing oxygen therapy at the same time, it will not affect the quietness of the environment. At the same time, the use and maintenance costs are greatly reduced compared to multiple oxygen concentrators.

[0088] (2) It can be conveniently placed near hospitals, communities, shopping malls, schools, office buildings, airports and railway stations, making it as easy for people to get oxygen as to get a cup of hot water. This greatly improves the convenience of obtaining oxygen, allowing the beneficial effects of oxygen therapy to be widely integrated into the lives of more people, and improving people's quality of life and work status;

[0089] (3) The setting of the air balance tank can, on the one hand, enable the pressure swing adsorption process to obtain a more stable gas volume and pressure supply, and on the other hand, enhance the environmental adaptability of the equipment under high altitude and low pressure conditions. The compressed air in the high-pressure air balance tank will be used as a prefabricated buffer gas to make up for the loss caused by low pressure. Combined with the more thorough performance of the molecular sieve in the adsorption tower in the desorption process at high altitudes, the equipment can be better stabilized to maintain good oxygen production performance at high altitudes.

[0090] (4) The high-performance DC variable frequency compressor is combined with a dedicated oxygen production module, which has a larger output gas volume, more stable oxygen production performance, rapid oxygen output, and high oxygen purity; combined with intelligent variable frequency control, the mode is selected according to the type of oxygen filling container to be filled, and intelligent control of oxygen filling pressure is provided. The system can judge and automatically adjust the number of adsorption towers involved in oxygen production and the adsorption pressure according to the amount of oxygen stored in the equipment and the requirements of different filling containers and oxygen absorption, so as to flexibly adjust the oxygen production capacity. This can not only meet the needs of different oxygen consumption, but also greatly improve the oxygen production energy consumption ratio, flexibility and oxygen production efficiency of the equipment;

[0091] (5) The use of low-delay proportional valves (including proportional control valves) can simultaneously perform oxygenation and oxygen inhalation. According to the user's choice of oxygen inhalation flow rate, the output of product gas can be adjusted to adjust the distribution of product gas between the oxygen inhalation output module and the pressurized oxygenation module, thereby meeting the user's dual-mode sharing needs, on-demand distribution, flexible adjustment, and saving of oxygen loss, meeting a richer range of usage environments and usage needs; in addition, the use of proportional valves as inflation flow control valves can achieve stepless regulation of pressure and flow rate, avoiding the pressure shock phenomenon when the switch-type gas valve is switched. When the patient is inhaling oxygen, the airflow rate will slowly rise to the set flow rate, giving the patient a softer use experience;

[0092] (6) Compared with large-scale oxygen production and oxygenation equipment, this oxygen station is more convenient for civilian use, with low noise, small size, higher safety, and lower energy consumption and maintenance costs; the proportional valve set at the oxygenation outlet facilitates the rapid use of prefabricated oxygen in the equipment to quickly fill the user's oxygenation container, shortening the user's waiting time for oxygenation and improving the convenience of equipment use.

[0093] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, including the combination of various specific technical features in any suitable manner. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations. However, these simple modifications and combinations should also be regarded as the contents disclosed by the present invention and belong to the protection scope of the present invention.

Claims

1. An oxygen supply system, characterized in that: include: An air compression module (101), the air compression module (101) being configured to form pressurized air by pressurizing ambient air; a controllable oxygen module (102), the controllable oxygen module (102) being used to receive the pressurized air from the air compression module (101) and to produce product gas; and An oxygen absorption output module (104) and a pressurized oxygen filling module (105), wherein the oxygen absorption output module (104) is configured to receive product gas from the controllable oxygen module (102) and output oxygen therapy gas suitable for direct inhalation by a user; and the pressurized oxygen filling module (105) is configured to receive product gas from the controllable oxygen module (102) and fill the product gas into an oxygen filling container.

2. The oxygen supply system according to claim 1, characterized in that: The invention also comprises a ratio control module (103) connected between the controllable oxygen module (102) and the oxygen absorption output module (104) and the pressurized oxygen filling module (105), wherein the ratio control module (103) is configured to be able to control the distribution ratio of the product gas delivered by the controllable oxygen module (102) in the oxygen absorption output module (104) and the pressurized oxygen filling module (105), so as to selectively realize an oxygen absorption mode in which only the oxygen absorption output module (104) outputs oxygen, an oxygen filling mode in which only the pressurized oxygen filling module (105) outputs oxygen, and a common mode in which both the oxygen absorption output module (104) and the pressurized oxygen filling module (105) output oxygen.

3. The oxygen supply system according to claim 1, characterized in that: The air compression module (101) comprises a variable frequency air compressor (3) for pressurizing ambient air and at least some of the following components: An air intake filter (1) and / or an air intake silencer (2) arranged upstream of the variable frequency air compressor (3); A cooling fan (4) that causes airflow to flow through the variable frequency air compressor (3); An air cooler (5) and / or an air balance tank (6) are arranged downstream of the variable frequency air compressor (3).

4. The oxygen supply system according to claim 1, characterized in that: The oxygen absorption output module (104) comprises at least some of the following components: a pressure regulating valve (29), the pressure regulating valve (29) being configured to reduce the pressure of the product gas from the controllable oxygen module (102); a humidification cup (35), the humidification cup (35) being adapted to humidify the product gas from the controllable oxygen module (102); Bacteria filter (30); Flow control valve (31); Oxygen absorption check valve (33).

5. The oxygen supply system according to claim 1, characterized in that: The pressurized oxygen filling module (105) is suitable for connecting to an oxygen filling bag (43) and / or an oxygen filling cylinder (44) and comprises at least some of the following components: A variable frequency oxygen compressor (37), the variable frequency oxygen compressor (37) being configured to pressurize the product gas from the controllable oxygen module (102); An oxygenated oxygen storage tank (39), wherein a pressure sensor (40) is installed on the oxygenated oxygen storage tank (39); An inflation flow control valve (42) is used to control the inflation flow rate.

6. The oxygen supply system according to claim 1, characterized in that: The controllable oxygen module (102) comprises: an air intake circuit (L1) for receiving pressurized air, an oxygen production unit for producing product gas, and a product gas output circuit (L3) for outputting the produced product gas, which are connected in sequence; The oxygen production unit comprises a plurality of molecular sieve adsorption units (15, 16, 17, 18) arranged in groups.

7. The oxygen supply system according to claim 6, characterized in that: The controllable oxygen module (102) further comprises: a first control valve group and a desorption waste gas exhaust gas path (L2), wherein the first control valve group is arranged between the air intake gas path (L1) and the desorption waste gas exhaust gas path (L2), and the first control valve group can be controlled so that the air intake gas path (L1) is selectively connected to the first port of a part of the molecular sieve adsorption units (15, 16, 17, 18) to allow the pressurized air formed by the air compression module (101) to pass into the molecular sieve adsorption units (15, 16, 17, 18) through the air intake gas path (L1), and the desorption waste gas exhaust gas path (L2) is connected to the first port of another part of the molecular sieve adsorption units (15, 16, 17, 18) to allow the desorption waste gas generated in the molecular sieve adsorption units (15, 16, 17, 18) to be discharged to the outside through the desorption waste gas exhaust gas path (L2).

8. The oxygen supply system according to claim 7, characterized in that: The controllable oxygen module (102) further comprises: a second control valve group, the second control valve group being arranged between the second port of the molecular sieve adsorption unit (15, 16, 17, 18) and the product gas output gas path (L3), so as to allow the product gas produced by the molecular sieve adsorption unit (15, 16, 17, 18) to be transported to the product gas output gas path (L3) through the second port; and / or, The product gas output gas path (L3) is provided with a finished oxygen storage tank (27) for storing the product gas, located downstream of the second control valve group.

9. The oxygen supply system according to claim 8, characterized in that: The controllable oxygen module (102) comprises: The second control valve group comprises a product gas exhaust branch (L31) respectively connected to the second port of each of the molecular sieve adsorption units (15, 16, 17, 18) and the product gas output gas path (L3), wherein the second control valve group comprises a one-way valve (23, 24, 25, 26) respectively arranged on the product gas exhaust branch (L31) and the one-way air inlet thereof faces the second port of the corresponding molecular sieve adsorption unit (15, 16, 17, 18), and / or A throttling air branch (L32) connected to the second ports of different molecular sieve adsorption units (15, 16, 17, 18), the second control valve group comprising throttle valves (19, 20) respectively arranged on the throttling air branch (L32), and / or A pressure-equalizing ventilation branch (L33) connected to the second ports of different molecular sieve adsorption units (15, 16, 17, 18), wherein the second control valve group comprises pressure-equalizing valves (21, 22) respectively arranged on the pressure-equalizing ventilation branch (L33).

10. The oxygen supply system according to claim 7, characterized in that: The desorption waste gas exhaust gas path (L2) is provided with a nitrogen exhaust silencer (36), and / or the controllable oxygen module comprises a plurality of groups of molecular sieve adsorption units (15, 16, 17, 18) which share at least a part of the gas path sections of the air intake gas path (L1), the desorption waste gas exhaust gas path (L2) and the product gas output gas path (L3), and each group of the molecular sieve adsorption units (15, 16, 17, 18) comprises a pair of the molecular sieve adsorption units (15, 16, 17, 18).

11. The oxygen supply system according to claim 6, characterized in that: The air intake path (L1) is provided with a bypass joint for outputting pressurized air.

12. A multifunctional oxygen concentrator, characterized in that: The multifunctional oxygen concentrator comprises the oxygen supply system according to any one of claims 1 to 11.

13. An oxygen station, characterized in that: The oxygen station comprises an oxygen supply system according to any one of claims 1 to 11.

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