Membrane dryer and system for high-low oxygen machine

By designing the gas channel and fixing mechanism of the membrane dryer, the drying and humidification of the gas in high and low oxygen machines are realized, solving the problem that existing dryers only have a drying effect, ensuring the respiratory health of users, and improving the use effect of high and low oxygen equipment.

CN223504660UActive Publication Date: 2025-11-04ANYANG XIANGYU MEDICAL EQUIP
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Patent Information

Application Number
CN202422254653.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-13
Publication Date
2025-11-04
Estimated Expiration
2034-09-13

AI Technical Summary

Technical Problem

Existing high and low oxygen machine dryers only have a drying effect and do not take into account the problem of water removal, resulting in the air that users breathe is too dry, which can affect respiratory health with long-term use.

Method used

A membrane dryer was designed, comprising a gas channel and a fixing mechanism. The gas channel dries and humidifies the gas input from the air compressor, ensuring that the gas maintains a suitable humidity in the breathing duct. The fixing mechanism secures the gas channel to prevent collisions. End caps and a filter mechanism filter impurities. The system communicates with a server to control the drying and humidification process.

Benefits of technology

This effectively avoids the problem of dryers only having a drying effect while neglecting humidification, ensuring the respiratory health of users when using high and low oxygen equipment for a long time and improving the effect of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a membrane dryer and system for a high-low oxygen machine, and solves the problems that the dryer of the high-low oxygen machine only has a drying effect, so that the respiratory tract of a user is influenced, and the use effect of the user is greatly influenced. The membrane type dryer comprises a shell, a fixing mechanism and a gas channel, the gas channel of the membrane type dryer is connected with an air compressor through a heat exchanger and further connected with a breathing mask through a breathing pipeline, the interior of the shell of the membrane type dryer is communicated through the gas channel in a penetrating mode, and the gas channel is connected with the fixing mechanism. The fixing mechanism is also connected with the shell; the gas channel is used for drying and humidifying gas input by the air compressor through the heat exchanger and outputting the dried and humidified gas to the breathing pipeline; the fixing mechanism is used for fixing the gas channel at the upper end and the lower end of the shell correspondingly, and the using effect of a user is guaranteed.
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Description

Technical Field

[0001] This application relates to the field of medical equipment technology, and more particularly to a membrane dryer and system for high and low oxygen machines. Background Technology

[0002] High and low oxygen machines are devices that can simulate or regulate oxygen concentration environments. They are widely used in medical, scientific research, and sports training fields. They can precisely control oxygen concentration to meet different experimental or therapeutic needs, and maintain stable oxygen concentration during long-term operation to ensure experimental or therapeutic effects. They also have comprehensive safety protection measures, such as overpressure protection and leak detection, to ensure safety during use. Typical high and low oxygen machines include an air compressor, heat exchanger, breathing tubing, breathing mask, and a proportional valve to regulate oxygen concentration, allowing users to obtain the target oxygen concentration.

[0003] To prevent moisture in the airflow of high and low oxygen machines from causing hygiene problems, dryers are generally installed. However, existing dryers in high and low oxygen machines only dry the air and do not address moisture removal, resulting in dry air that can irritate the user's respiratory tract after prolonged use, significantly impacting the effectiveness of the device. Utility Model Content

[0004] In view of this, the present application provides a membrane dryer and system for high and low oxygen machines. This membrane dryer and system for high and low oxygen machines effectively solves the problem that dryers for high and low oxygen machines only have a drying effect, which affects the user's respiratory tract and greatly affects the user's performance.

[0005] In a first aspect, embodiments of this application provide a membrane dryer for a high-low oxygen machine. The high-low oxygen machine includes an air compressor, a heat exchanger, a breathing duct, and a breathing mask. The membrane dryer includes a shell, a fixing mechanism, and a gas channel. The gas channel of the membrane dryer is connected to the air compressor via the heat exchanger and also to the breathing mask via the breathing duct. The interior of the shell of the membrane dryer is permeated by the gas channel. The gas channel is connected to the fixing mechanism, and the fixing mechanism is also connected to the shell.

[0006] The gas passage is used to dry and humidify the gas input from the air compressor via the heat exchanger, and to output the dried and humidified gas to the breathing pipe.

[0007] The fixing mechanism is used to fix the gas passage at the upper and lower ends of the housing, respectively.

[0008] The gas passage includes a first passage and a second passage; the first passage is connected to the second passage and a heat exchanger, and the second passage is also connected to a breathing tube;

[0009] The first channel is used to dry the moisture in the gas input from the air compressor through the heat exchanger and to output the dried gas to the oxygen film of the high and low oxygen machine.

[0010] The second channel is used to receive the gas output from the high-low oxygen machine and to receive the gas output from the proportional valve in the high-low oxygen machine, and to humidify the gas output from the proportional valve to obtain humidified gas for output to the breathing tube.

[0011] In some embodiments, both the first channel and the second channel are capillaries.

[0012] In some embodiments, the gas channel further includes an inlet and an outlet, the number of which corresponds to the number of channels within the gas channel.

[0013] In some embodiments, the fixing mechanism includes a first fixing part and a second fixing part, wherein the first fixing part is connected to the gas channel and the second fixing part respectively, and the second fixing part is also connected to the housing;

[0014] The first fixing part is used to fix the gas channel;

[0015] The second fixing part is used to fix the first fixing part to the housing.

[0016] In some embodiments, the first fixing portion includes a perforated sieve plate, and the second fixing portion includes a locking nut.

[0017] In some embodiments, the membrane dryer further includes end caps, the end caps comprising an upper end cap and a lower end cap, the upper end cap being located at the upper end of the housing, and the lower end cap being located at the lower end of the housing.

[0018] In some embodiments, the end cap further includes a filtration mechanism for filtering the gas received and output by the membrane dryer.

[0019] In some embodiments, the filtration mechanism includes an input filtration section and an output filtration section, wherein the input filtration section is connected to a heat exchanger and a first channel, respectively; and the output filtration section is connected to a second channel and a breathing duct, respectively.

[0020] The input filtration section is used to filter the gas input from the heat exchanger to the first channel;

[0021] The output filter section is used to filter the gas output from the second channel to the breathing tube.

[0022] Secondly, embodiments of this application also provide a membrane drying system for a high- and low-oxygen machine, the system comprising a membrane dryer and a server as described in any one of the claims for a high- and low-oxygen machine, wherein the membrane dryer is communicatively connected to the server.

[0023] The server is used to send control commands to the membrane dryer;

[0024] The membrane dryer is used to receive and respond to control commands to dry and humidify the input gas.

[0025] The embodiments of this application have the following beneficial effects:

[0026] This application provides a membrane dryer for a high / low oxygen machine. The high / low oxygen machine includes an air compressor, a heat exchanger, a breathing duct, and a breathing mask. The membrane dryer includes a shell, a fixing mechanism, and a gas channel. The gas channel of the membrane dryer is connected to the air compressor via the heat exchanger and also to the breathing mask via the breathing duct. The interior of the shell of the membrane dryer is permeated by the gas channel. The gas channel is connected to the fixing mechanism, and the fixing mechanism is also connected to the shell. The gas channel is used to dry and humidify the gas input from the air compressor via the heat exchanger, and to combine the drying and humidification processes. The gas is then output to the breathing duct; the fixing mechanism is used to fix the gas channel at the upper and lower ends of the shell respectively. The membrane dryer of this application dries and humidifies the gas input from the air compressor through the heat exchanger through the gas channel, and at the same time achieves the effect of drying and humidifying the gas input from the heat exchanger. This avoids the problem that existing dryers can only achieve the effect of drying without considering the phenomenon of water removal, which leads to the inability to humidify and cannot guarantee the user's respiratory tract after long-term use. This ensures the user's use effect when using high and low oxygen equipment. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This illustration shows a schematic diagram of the structure of a first type of membrane dryer for high and low oxygen machines provided in an embodiment of this application;

[0029] Figure 2 This invention provides a suitable connection diagram between a membrane dryer and a high / low oxygen device according to an embodiment of the present application.

[0030] Figure 3 A schematic diagram of the perforated sieve plate provided in an embodiment of this application is shown;

[0031] Figure 4 A schematic diagram of the structure of a first membrane drying system for high and low oxygen machines provided in this application embodiment is shown.

[0032] Explanation of key symbols:

[0033] 1-High and low oxygen machine; 2-Membrane dryer; 21-Shell; 22-Fixing mechanism; 23-Gas passage;

[0034] 221-First fixed part; 222-Second fixed part; 231-First channel; 232-Second channel; 24-End cap; 241-Filtering mechanism; 3-Server. Detailed Implementation

[0035] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0036] The components of the embodiments of this application described and illustrated in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0037] In the following, the terms “comprising,” “having,” and their cognates, which may be used in various embodiments of this application, are intended only to indicate a particular feature, number, step, operation, element, component, or combination thereof, and should not be construed as excluding, firstly, the presence of one or more other features, numbers, steps, operations, elements, components, or combinations thereof, or adding the possibility of one or more features, numbers, steps, operations, elements, components, or combinations thereof.

[0038] Furthermore, the terms "first," "second," and "third" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0039] Unless otherwise specified, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of this application pertain. Terms (such as those defined in commonly used dictionaries) shall be interpreted as having the same meaning as in their contextual meaning in the relevant technical field and shall not be construed as having an idealized or overly formal meaning, unless clearly defined in the various embodiments of this application.

[0040] To prevent moisture in the airflow from causing hygiene problems, current high and low oxygen machines are generally equipped with dryers. However, existing dryers only dry the air and do not address moisture removal, resulting in dry air that can irritate the user's respiratory tract after prolonged use, significantly impacting the effectiveness of the machine.

[0041] Based on this, the membrane dryer and system for high and low oxygen machines provided by this utility model embodiment avoids the problem that existing dryers can only achieve the effect of drying without considering the phenomenon of water removal, which leads to the inability to humidify and the inability to guarantee the user's respiratory tract after long-term use. This ensures the user's use effect when using high and low oxygen equipment.

[0042] To understand this embodiment, a membrane dryer for high and low oxygen machines disclosed in this embodiment will first be described in detail.

[0043] Example 1

[0044] Please refer to Figure 1-2 This application provides a membrane dryer 2 for a high-low oxygen machine 1. The high-low oxygen machine includes an air compressor, a heat exchanger, a breathing duct, and a breathing mask. The membrane dryer 2 includes a shell 21, a fixing mechanism 22, and a gas channel 23. The gas channel 23 of the membrane dryer 2 is connected to the air compressor via the heat exchanger and also to the breathing mask via the breathing duct. The interior of the shell 21 of the membrane dryer 2 is penetrated and communicated through the gas channel 23. The gas channel 23 is connected to the fixing mechanism 22, and the fixing mechanism 22 is also connected to the shell 21.

[0045] The gas passage 23 is used to dry and humidify the gas input from the air compressor through the heat exchanger, and to output the dried and humidified gas to the breathing pipe;

[0046] The fixing mechanism 22 is used to fix the gas channel 23 at the upper and lower ends of the housing 21 respectively.

[0047] The high / low oxygen machine 1 includes an air compressor, a heat exchanger, a breathing duct, and a breathing mask. The membrane dryer 2 of this application is used in the high / low oxygen machine 1. The air compressor pressurizes the gas output from the air source in the high / low oxygen machine 1, resulting in a high-temperature, high-pressure gas. The heat exchanger cools the high-temperature, high-pressure gas output from the air compressor, changing the gas from a high-temperature, high-pressure state to a low-temperature, high-pressure state. This low-temperature, high-pressure gas contains moisture. The low-temperature, high-pressure gas is then fed into the membrane dryer 2, which dries the gas. The high / low oxygen machine 1 then uses an oxygen membrane to release oxygen from the dried gas. A proportional valve is used to regulate the oxygen ratio. After the oxygen ratio is controlled appropriately, the membrane dryer 2 humidifies the regulated gas and outputs the humidified gas through the breathing duct to the breathing mask. When the user breathes through the breathing mask, they inhale the humidified, regulated gas, thus completing the usage process of the high / low oxygen machine 1.

[0048] The shell 21 of the membrane dryer 2 encloses and covers the gas channel 23, ensuring that the gas inside the gas channel 23 does not overflow. This prevents the high-low oxygen machine 1 from failing to produce a suitable proportion of oxygen gas. The suitable proportion of oxygen gas refers to the high-oxygen gas and low-oxygen gas that the high-low oxygen machine 1 aims to produce, thus ensuring the accuracy and effectiveness of the high-low oxygen machine 1 in producing a suitable proportion of oxygen gas. The gas channel 23 dries and humidifies the low-temperature, high-pressure gas output from the heat exchanger, ensuring that users will not experience respiratory problems as seen with existing dryers when inhaling the humidified gas output from the gas channel 23 for extended periods. The fixing mechanism 22 fixes the gas channel 23 to the shell 21, preventing the gas channel 23 from colliding inside the shell 21 and affecting its drying and humidifying effect on the gas.

[0049] In conjunction with the above embodiments, the gas channel 23 includes a first channel 231 and a second channel 232; the first channel 231 connects the second channel 232 and a heat exchanger, and the second channel 232 is also connected to a breathing tube;

[0050] The first channel 231 is used to dry the moisture in the gas input from the air compressor through the heat exchanger and output the dried gas to the oxygen film of the high and low oxygen machine 1.

[0051] The second channel 232 is used to receive the gas output from the proportional valve of the high and low oxygen machine 1, and humidify the gas output from the proportional valve to obtain humidified gas for output to the breathing pipe.

[0052] The gas channel 23, including the first channel 231 and the second channel 232, both have inlet and outlet channels, meaning the gas channel 23 is a two-inlet, two-outlet channel. The first channel 231 is used to dry the moisture in the gas input from the air compressor via the heat exchanger and output the dried gas to the high / low oxygen machine 1. At this time, the high / low oxygen machine 1 also releases oxygen from the dried gas through an oxygen membrane and uses a proportional valve to regulate the oxygen concentration. After controlling the oxygen ratio appropriately, the regulated gas is output to the second channel 232, which receives the gas output from the proportional valve. The second channel 232 mixes the dried oxygen-concentration-regulated gas output from the proportional valve with the moisture released from the first channel 231. The gas at this point is in a state most suitable for the user to inhale, so the gas is output to the breathing tube and inhaled by the user through a breathing mask to achieve the desired effect.

[0053] In conjunction with the above embodiments, both the first channel 231 and the second channel 232 are capillaries.

[0054] Both the first channel 231 and the second channel 232 are capillary tubes. The capillary feature of the first channel 231 will extract water from the gas received by the heat exchanger, and the extracted water will be transferred to the second channel 232. The second channel 232 will receive the water output from the first channel 231, and after the proportional valve receives the regulated gas, it will mix the water and gas to obtain the oxygen-regulated humidified gas.

[0055] In conjunction with the above embodiments, the gas channel 23 also includes an air inlet 233 and an air outlet 234, the number of which corresponds to the number of channels within the gas channel 23.

[0056] The number of air inlets 233 and air outlets 234 corresponds to the number of channels within the gas channel 23. That is, the first channel 231 has an air inlet 233 and an air outlet 234, and the second channel 232 also has an air inlet 233 and an air outlet 234. Specifically, the air inlet 233 of the first channel 231 is connected to the heat exchanger in the high-low oxygen machine 1, and the air outlet 234 of the first channel 231 is connected to the oxygen membrane in the high-low oxygen machine 1. The air inlet 233 of the second channel 232 is connected to the proportional valve of the high-low oxygen machine 1, and the air outlet 234 of the first channel 231 is connected to the breathing pipe in the high-low oxygen equipment 1, thereby achieving a complete channel for gas flow.

[0057] In conjunction with the above embodiments, the fixing mechanism 22 includes a first fixing part 221 and a second fixing part 222. The first fixing part 221 is connected to the gas channel 23 and the second fixing part 222 respectively, and the second fixing part 222 is also connected to the housing 21.

[0058] The first fixing part 221 is used to fix the gas channel 23;

[0059] The second fixing part 222 is used to fix the first fixing part 221 onto the housing 21.

[0060] The fixing mechanism 22 consists of two parts, namely a first fixing part 221 and a second fixing part 222. The first fixing part 221 is used to fix the gas channel 23, while the second fixing part 222 fixes the first fixing part 221 to the housing 21, thereby avoiding the possibility of collision of the gas channel 23 in the housing 21, thus ensuring the effect of drying and humidifying the gas in the gas channel 23.

[0061] In conjunction with the above embodiments, the first fixing part 221 includes a perforated sieve plate, and the second fixing part 222 includes a locking nut.

[0062] like Figure 3 The number of holes in the perforated sieve plate shown is for illustrative purposes only. The holes are designed to allow the first channel 231 and the second channel 232 in the gas channel 23 to pass through. That is, the inlet and outlet channels of the first channel 231 each use one hole, and the inlet and outlet channels of the second channel 232 each use one hole, thus achieving a better fixing effect. The perforated sieve plate is fixed to the housing 21 with a locking nut to avoid entanglement between the channels, thereby ensuring the drying and humidifying effect of the gas in the gas channel 23.

[0063] In conjunction with the above embodiments, the membrane dryer 2 further includes an end cover 24, which includes an upper end cover and a lower end cover. The upper end cover is located at the upper end of the housing, and the lower end cover is located at the lower end of the housing 21.

[0064] To ensure that no dust or impurities enter the housing 21, an end cap 24 is provided for the housing 21. The end cap 24 includes an upper end cap and a lower end cap. The upper end cap covers the upper end of the housing 21, and the lower end cap covers the lower end of the housing 21, thereby ensuring the dustproof and impurity-proof effect of the housing 21, and also ensuring the purity of the gas flowing in the gas channel 23 inside the housing 21, thus ensuring the safety of the user.

[0065] In conjunction with the above embodiments, the end cap 24 further includes a filter mechanism 241, which is used to filter the gas received and output by the membrane dryer 2.

[0066] To further ensure the purity of the gas received and output by the membrane dryer 2, the filter mechanism 241 is installed on the gas channel 23 to filter the gas received and output by the membrane dryer 2. Alternatively, the filter mechanism 241 can be installed at the locations where the upper and lower end caps of the end cap 24 contact the gas channel 23 to prevent the presence of impurities and dust in the gas, thereby ensuring the purity of the gas flowing through the gas channel 23.

[0067] In conjunction with the above embodiments, the filtration mechanism 241 includes an input filtration section and an output filtration section. The input filtration section is connected to a heat exchanger and a first channel 231, respectively; the output filtration section is connected to a second channel 232 and a breathing duct, respectively.

[0068] The input filter section is used to filter the gas input to the first channel 231 from the heat exchanger;

[0069] The output filter section is used to filter the gas output from the second channel 232 to the breathing tube.

[0070] The filter mechanism 241 can use any device with filtration performance, such as filter cotton, or gauze. The specific design can be determined according to the actual situation. This device needs to be suitable for the volume requirements of the housing 21. The input filter section is used to filter the gas input from the heat exchanger to the first channel 231, thereby ensuring the purity of the gas entering the gas pipe 23. The output filter section is used to filter the gas output from the second channel 232 to the breathing pipe, thereby ensuring the purity of the gas entering the breathing pipe, thus ensuring the safety of the user and avoiding frequent replacement of the gas pipe 23.

[0071] Example 2

[0072] Embodiments of this application also provide a membrane drying system for high and low oxygen machines, such as... Figure 4 As shown, the system includes a membrane dryer 2 and a server 3 for a high-low oxygen machine as described in any one of the claims, wherein the membrane dryer 2 is communicatively connected to the server 3.

[0073] The server 3 is used to send control commands to the membrane dryer 2;

[0074] The membrane dryer 2 is used to receive and respond to control commands to dry and humidify the input gas.

[0075] The server 3 can be a computer or other intelligent device, or it can be the host of the high / low oxygen machine 1. The specific configuration can be determined according to actual conditions. The membrane dryer 2 communicates with the server 3, which can be a wired or wireless communication connection, depending on the specific situation. For example, if the server 3 is a standalone computer, a wireless communication connection can be used; if the server 3 is the host of the high / low oxygen machine 1, a wired communication connection can be used. After the high / low oxygen machine 1 starts working, the server 3 sends control commands to the membrane dryer 2. These control commands can be pre-generated or generated in real-time. The membrane dryer 2 receives and responds to the control commands, drying and humidifying the input gas to ensure that it does not affect the user's respiratory tract during use, thereby guaranteeing the user's treatment effect.

[0076] The membrane drying system for high and low oxygen machines provided in this embodiment has the same technical features as the membrane dryer for high and low oxygen machines provided in the above embodiments, so it can also solve the same technical problems and achieve the same technical effects.

[0077] Finally, it should be noted that the above-described embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of the utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model. These modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A membrane dryer for high and low oxygen machines, characterized in that, The high and low oxygen machine includes an air compressor, a heat exchanger, a breathing duct, and a breathing mask. The membrane dryer includes a shell, a fixing mechanism, and a gas channel. The gas channel of the membrane dryer is connected to the air compressor via the heat exchanger and also to the breathing mask via the breathing duct. The interior of the shell of the membrane dryer is connected through the gas channel. The gas channel is connected to the fixing mechanism, and the fixing mechanism is also connected to the shell. The gas passage is used to dry and humidify the gas input from the air compressor via the heat exchanger, and to output the dried and humidified gas to the breathing pipe. The fixing mechanism is used to fix the gas passage at the upper and lower ends of the housing, respectively.

2. The membrane dryer for high and low oxygen machines according to claim 1, characterized in that, The gas passage includes a first passage and a second passage; the first passage is connected to the second passage and a heat exchanger, and the second passage is also connected to a breathing tube; The first channel is used to dry the moisture in the gas input from the air compressor through the heat exchanger and to output the dried gas to the oxygen film of the high and low oxygen machine. The second channel is used to receive the gas output from the proportional valve in the high and low oxygen machine, and to humidify the gas output from the proportional valve to obtain humidified gas for output to the breathing tube.

3. The membrane dryer for high and low oxygen machines according to claim 2, characterized in that, Both the first and second channels are capillaries.

4. The membrane dryer for high and low oxygen machines according to claim 2, characterized in that, The gas channel also has an air inlet and an air outlet, the number of which corresponds to the number of channels within the gas channel.

5. The membrane dryer for high and low oxygen machines according to claim 1, characterized in that, The fixing mechanism includes a first fixing part and a second fixing part. The first fixing part is connected to the gas channel and the second fixing part respectively, and the second fixing part is also connected to the housing. The first fixing part is used to fix the gas channel; The second fixing part is used to fix the first fixing part to the housing.

6. The membrane dryer for high and low oxygen machines according to claim 5, characterized in that, The first fixing part includes a perforated sieve plate, and the second fixing part includes a locking nut.

7. The membrane dryer for high and low oxygen machines according to claim 1, characterized in that, The membrane dryer also includes end caps, which include an upper end cap and a lower end cap. The upper end cap is located at the upper end of the housing, and the lower end cap is located at the lower end of the housing.

8. The membrane dryer for high and low oxygen machines according to claim 7, characterized in that, The end cap also includes a filtration mechanism for filtering the gas received and output by the membrane dryer.

9. The membrane dryer for high and low oxygen machines according to claim 8, characterized in that, The filtration mechanism includes an input filtration section and an output filtration section. The input filtration section is connected to a heat exchanger and a first channel, respectively. The output filtration section is connected to a second channel and a breathing tube, respectively. The input filtration section is used to filter the gas input from the heat exchanger to the first channel; The output filter section is used to filter the gas output from the second channel to the breathing tube.

10. A membrane drying system for high and low oxygen machines, characterized in that, The system includes a membrane dryer and a server for a high- and low-oxygen machine as described in any one of claims 1-9, wherein the membrane dryer is communicatively connected to the server; The server is used to send control commands to the membrane dryer; The membrane dryer is used to receive and respond to control commands to dry and humidify the input gas.