Double-cavity variable-pressure cooling type hyperbaric oxygen chamber and cooling method
The dual-chamber hyperbaric oxygen chamber addresses temperature instability by using gas circulation and heat exchange to maintain stable conditions within the treatment cavity, enhancing patient comfort and reducing costs.
Patent Information
- Application Number
- CN202411454080.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2024-12-27
AI Technical Summary
Existing hyperbaric oxygen chambers face temperature instability due to pressurization, leading to discomfort and potential physiological reactions, with current cooling methods causing energy loss or occupying valuable space and increasing costs.
A dual-chamber design with a treatment cavity and heat exchange cavity separated by a partition, utilizing air circulation and pressure-changing chambers to maintain stable temperature through gas circulation and heat exchange without additional equipment.
Efficient temperature regulation within the treatment cavity, reducing energy loss and equipment costs while ensuring patient comfort by balancing gas flow and pressure changes.
Smart Images
Figure CN119184994A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of oxygen chamber cooling, and in particular to a double-chamber variable pressure cooling type hyperbaric oxygen chamber and a cooling method. Background Art
[0002] An oxygen chamber is a professional medical device used to implement hyperbaric oxygen therapy. Its working principle is to increase the concentration of oxygen in the environment by increasing the air pressure in the chamber, thereby causing more oxygen to dissolve into the blood and other body fluids under high pressure conditions, thereby improving the oxygenation state of human tissues, accelerating cell metabolism, and helping to treat certain specific diseases or promote recovery.
[0003] During the use of the hyperbaric oxygen chamber, ensuring the stability of the temperature in the chamber is crucial for the patient's comfort and treatment effect. According to the principles of physics, when the oxygen chamber is pressurized, the increase in the air pressure in the chamber will lead to the intensification of molecular movement in the air and the increase in the frequency of collisions between molecules. The resulting kinetic energy will be converted into heat energy, causing the temperature in the chamber to rise. This temperature increase phenomenon is inevitable during hyperbaric oxygen therapy, especially in the case of long-term treatment or multiple consecutive pressurizations. The cumulative effect of temperature may cause the environment in the chamber to become too stuffy, affecting the patient's experience and may even cause discomfort or other physiological reactions.
[0004] In order to deal with the temperature rise problem that may be caused by the pressurization of the oxygen chamber, there are currently two main effective cooling measures. The first method is to use an air dryer to pre-cool the gas to be injected into the chamber. This method cools the gas before it enters the chamber, thereby reducing the temperature rise effect caused by pressurization in the chamber. However, since the heat exchange process occurs outside the chamber, there may be a lot of energy loss in this process, resulting in unsatisfactory actual cooling effect.
[0005] The second cooling solution is to install an air conditioning system inside the oxygen cabin. This method can effectively transfer excess heat in the cabin to the outside world and maintain a suitable temperature condition in the cabin by working together with the indoor and outdoor units. Compared with the previous solution, this method has a more significant cooling effect, but because the air conditioner needs to be placed in the limited cabin space, it will not only occupy part of the available space, but also require an outdoor air conditioner outside the cabin, which not only increases the equipment cost, but may also cause additional noise and heat emissions. Summary of the invention
[0006] The object of the present invention is to provide a dual-chamber variable pressure and temperature reduction hyperbaric oxygen chamber and a temperature reduction method to solve the problems raised in the above-mentioned background technology.
[0007] To achieve the above purpose, the present invention provides a dual-chamber variable pressure and temperature reduction hyperbaric oxygen chamber adopts the following technical solutions: It comprises a cabin, wherein a treatment cavity and a heat exchange cavity are arranged inside the cabin, wherein the treatment cavity and the heat exchange cavity are separated by a partition, wherein the partition is provided with air flow holes for facilitating air circulation, and wherein a pressure change cavity for heat exchange is arranged inside the heat exchange cavity; The treatment cavity is connected to a first gas path connected to an air compressor, the heat exchange cavity is connected to a second gas path connected to an air compressor, a first exhaust solenoid valve for exhaust and a first intake solenoid valve for intake are sequentially installed on the first gas path, and a second exhaust solenoid valve and a second intake solenoid valve are sequentially installed on the second gas path; The pressure-changing chamber is connected to a pressure detection tube and a third gas circuit. The pressure detection tube is connected to a pressure detection device. The third gas circuit is connected to the air compressor. A third exhaust solenoid valve and a third intake solenoid valve are sequentially installed on the third gas circuit.
[0008] As a further improvement, the partition is installed obliquely inside the cabin, with its top biased toward one side of the treatment cavity, air flow holes are left between the top of the partition and the cabin, and other parts of the partition are sealed and installed between the cabin.
[0009] As a further improvement, the cavity material of the voltage transformation cavity is a heat conductive material.
[0010] As a further improvement, the pressure changing chamber is connected with a pressure air pipe port and an air path air pipe port extending to the outside of the cabin, the pressure air pipe port is connected to the pressure detection tube, and the air path air pipe port is connected to the third air path.
[0011] The present invention also provides a dual-chamber pressure-changing cooling method, which uses the above-mentioned dual-chamber pressure-changing cooling hyperbaric oxygen chamber, and includes the following steps: S1, close the first exhaust solenoid valve, the second air intake solenoid valve and the third exhaust solenoid valve, open the first air intake solenoid valve, the second exhaust solenoid valve and the third air intake solenoid valve, start the air compressor, and the gas generated by the air compressor is divided into two parts. One part enters the pressure transformer chamber through the third air path. The pressure of the pressure transformer chamber is increased, causing its temperature to rise. The other part of the gas enters the treatment chamber through the first air path, and enters the heat exchange chamber through the air flow hole, exchanges heat with the pressure transformer chamber, so that the temperature of the pressure transformer chamber decreases, and is finally discharged through the second exhaust solenoid valve. In this process, the air inlet and outlet inside the cabin are balanced, and the pressure inside the treatment chamber is always kept stable; S2. After the pressure in the transformer chamber rises to a certain value, the first exhaust solenoid valve, the first air inlet solenoid valve, the second exhaust solenoid valve and the third air inlet solenoid valve are closed, and the second air inlet solenoid valve and the third exhaust solenoid valve are opened. The gas in the transformer chamber is discharged out of the cabin through the third exhaust solenoid valve, and the transformer chamber is decompressed and cooled. At the same time, the air compressor drives the gas to enter the heat exchange chamber through the second gas path. When the gas flows through the transformer chamber, it exchanges heat with the chamber wall and cools down. Then, it enters the treatment chamber through the air flow hole and pressurizes the treatment chamber. In this process, the cooling caused by the heat exchange of the gas and the temperature increase caused by the pressurization of the treatment chamber offset each other, maintaining a stable and comfortable temperature in the treatment chamber. S3, when the pressure in the pressure-changing chamber is the same as that outside the chamber, steps S1 and S2 are executed in a cycle. In the cycle state, the pressure in the treatment chamber rises in a step-by-step manner until it reaches the treatment pressure required by the oxygen chamber, and the chamber enters a stable pressure state; S4. When the cabin enters the stable pressure state and needs to be cooled again, repeat step S1 to stabilize the pressure in the treatment chamber and increase the pressure in the transformer chamber. When the pressure in the transformer chamber rises to a certain value, close the first air inlet solenoid valve, the second exhaust solenoid valve and the third air inlet solenoid valve, and open the first exhaust solenoid valve, the second air inlet solenoid valve and the third exhaust solenoid valve. The gas generated by the air compressor enters the heat exchange chamber from the second air path. The gas exchanges heat and cools down when passing through the transformer chamber, and then enters the treatment chamber through the air flow holes to reduce the temperature of the treatment chamber. Finally, it is discharged through the first exhaust solenoid valve. In this process, the air inlet and outlet inside the cabin are balanced, and the pressure inside the treatment chamber always remains stable.
[0012] The beneficial effects of the above technical solution of the present invention are as follows: The present invention designs a treatment cavity and a heat exchange cavity, and utilizes the air compressor of the oxygen chamber to achieve cooling without the need for additional equipment, thereby reducing costs and avoiding problems of additional noise and heat emissions. The gas circulation and heat exchange of the oxygen chamber achieve efficient cooling of the treatment cavity, improves energy utilization efficiency, ensures the temperature stability of the treatment environment, and optimizes the patient's usage experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 A top view of the present invention; Figure 3 For the present invention Figure 2 AA section view; Figure 4The schematic diagram of the working state of the transformer chamber under the pressure condition of the present invention is shown in FIG. Figure 1 ; Figure 5 The schematic diagram of the working state of the transformer chamber under the pressure condition of the present invention is shown in FIG. Figure 2 ; Figure 6 The schematic diagram of the treatment chamber of the present invention working under pressurized state Figure 1 ; Figure 7 The schematic diagram of the treatment chamber of the present invention working under pressurized state Figure 2 ; Figure 8 The working diagram of the treatment chamber of the present invention under the condition of stable pressure and temperature reduction Figure 1 ; Fig. 9 The working diagram of the treatment chamber of the present invention under the condition of stable pressure and temperature reduction Figure 2 .
[0014] Description of reference numerals: 1. Cabin body; 11. Treatment cavity; 12. Heat exchange cavity; 13. Partition; 14. Air flow hole; 15. Pressure transformation cavity; 16. Cabin door; 2. First air path; 21. First exhaust solenoid valve; 22. First air intake solenoid valve; 3. Second air path; 31. Second exhaust solenoid valve; 32. Second air intake solenoid valve; 4. Third air path; 41. Third exhaust solenoid valve; 42. Third air intake solenoid valve; 43. Air path air pipe port; 5. Pressure detection tube; 51. Pressure detection device; 52. Pressure air pipe port. DETAILED DESCRIPTION
[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.
[0016] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0017] In the prior art, an air dryer is usually used to pre-cool the gas or an air conditioner is used to cool the interior of the cabin to maintain the comfort of the oxygen cabin. The former may result in a large amount of energy loss during the cooling process; while the latter is installed inside the cabin, which will occupy the limited space inside the cabin, and the matching air conditioner outdoor unit may also generate additional noise and heat emission problems. In addition, both methods require external equipment, which increases the equipment cost.
[0018] Regarding the above problem, this solution is based on the kinetic theory of molecules (the increase in pressure in the space will lead to the intensification of the movement of air molecules, that is, the frequency of molecular collisions will increase, and the kinetic energy generated will be partially converted into heat energy, causing the temperature in the space to rise; conversely, when the pressure in the space decreases, its temperature will also decrease accordingly). A variable pressure cooling structure is designed inside the cabin 1. This structure does not require external equipment and saves a part of the cabin space compared to air conditioning. The variable pressure cooling structure includes a variable pressure chamber 15, which realizes the cooling of the treatment chamber 11 by periodically changing its internal pressure.
[0019] Specifically, the pressure of the pressure-changing chamber 15 rises, and the temperature rises accordingly. Then, the gas enters the treatment chamber 11 from the outside, flows through the heat exchange chamber 12, exchanges heat with the pressure-changing chamber 15, and is finally discharged outside the cabin, so that the temperature of the pressure-changing chamber 15 decreases. In this process, the intake volume is the same as the exhaust volume, and the pressure in the treatment chamber 11 is kept constant. Subsequently, the pressure-changing chamber 15 is depressurized, and the temperature decreases accordingly. The gas enters the heat exchange chamber 12 from the outside, exchanges heat with the pressure-changing chamber 15, and then flows into the treatment chamber 11 for storage or is discharged outside the cabin. When the gas is stored in the treatment chamber 11, the pressure of the treatment chamber 11 increases. When the gas is discharged outside the cabin, the treatment chamber 11 maintains a constant pressure, thereby achieving a step-by-step increase in the pressure of the treatment chamber 11 under a stable temperature state, and finally maintaining stability.
[0020] After introducing the basic principle of the present invention, various non-limiting embodiments of the present invention are described in detail below. The number of any element in the drawings is for illustration and not for limitation, and any naming is only for distinction and does not have any limiting meaning.
[0021] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.
[0022] Embodiment 1 of a dual-chamber variable pressure and temperature reduction hyperbaric oxygen chamber provided by the present invention: like Figure 1-3 As shown, the dual-chamber variable pressure cooling hyperbaric oxygen chamber includes a cabin body 1, the interior of which is provided with a treatment chamber 11 and a heat exchange chamber 12, and a cabin door 16 is opened on the treatment chamber 1 corresponding to the cabin body 1, and a user can enter the treatment chamber 11 through the cabin door 16 for treatment.
[0023] like Figure 3As shown, a partition 13 is fixedly installed inside the cabin 1, and the treatment cavity 11 and the heat exchange cavity 12 are separated by the partition 13. The top of the partition 13 is installed tilted toward the treatment cavity 11. An air flow hole 14 is opened between the top of the partition 13 and the cabin 1 to facilitate air circulation, and the other parts of the partition 13 are kept sealed from the cabin 1. In addition, a pressure-changing cavity 15 for heat exchange with airflow is fixedly installed in the heat exchange cavity 12, and the cavity material of the pressure-changing cavity 15 is a heat-conducting material.
[0024] The partition 13 is installed in this way to ensure that when the airflow passes through the airflow hole 14, it can flow smoothly along the inclined surface of the partition 13, thereby extending the residence time of the gas in the heat exchange chamber 12, so that the gas can fully exchange heat with the transformer chamber 15. The cavity material of the transformer chamber 15 is a heat-conducting material, which further enhances the efficiency of heat transfer.
[0025] like Figure 1-2 As shown, the treatment cavity 11 is connected to a first gas circuit 2 connected to an air compressor (not shown in the figure), and the heat exchange cavity 12 is connected to a second gas circuit 3 connected to the air compressor. A first exhaust solenoid valve 21 for exhaust and a first intake solenoid valve 22 for intake are sequentially installed on the first gas circuit 2, and a second exhaust solenoid valve 31 and a second intake solenoid valve 32 are sequentially installed on the second gas circuit 3. The second exhaust solenoid valve 31 and the second intake solenoid valve 32 are respectively used for exhausting or intake from the heat exchange cavity 12 side.
[0026] In this embodiment, the first gas circuit 2 is connected to the end face of the cabin body 1 on the side of the treatment cavity 11, and the second gas circuit 3 is connected to the end face of the cabin body 1 on the side of the heat exchange cavity 12, wherein the first exhaust solenoid valve 21 is fixedly installed on the first gas circuit 2 through a tee, and the second exhaust solenoid valve 31 is fixedly installed on the second gas circuit 3 through a tee.
[0027] The first gas path 2 and the second gas path 3 are arranged at both ends of the cabin 1, which can ensure that the gas enters from one end and is discharged from the other end, making it easier to control the in and out of the gas, prevent the overheating caused by the accumulation of gas in a local area, ensure that the temperature in the cabin is more stable, and improve the comfort of the patient. The design of the first air intake solenoid valve 22, the second air intake solenoid valve 32, the first exhaust solenoid valve 21 and the second exhaust solenoid valve 31 can be flexibly matched with switches to make the gas flow through the oxygen cabin to achieve different requirements of pressure relief, constant pressure or pressure increase.
[0028] like Figure 1-3 As shown, the pressure-changing chamber 15 is connected to a pressure detection tube 5 and a third gas circuit 4. The pressure detection tube 5 is connected to a pressure detection device 51. The pressure detection device 51 is used to detect the pressure change in the pressure-changing chamber 15. The third gas circuit 4 is connected to an air compressor. A third exhaust solenoid valve 41 and a third intake solenoid valve 42 are sequentially installed on the third gas circuit 4, wherein the third exhaust solenoid valve 41 is fixedly installed on the third gas circuit 4 through a tee.
[0029] In this embodiment, the pressure transformer chamber 15 is connected to a pressure air pipe port 52 and an air path air pipe port 43 extending to the outside of the cabin 1, the pressure detection tube 5 is connected to the pressure transformer chamber 15 through the pressure air pipe port 52, and the third air path 4 is connected to the pressure transformer chamber 15 through the air path air pipe port 43.
[0030] The pressure-changing chamber 15 is connected to a pressure detection tube 5 and a third gas circuit 4. The pressure detection tube 5 is connected to a pressure detection device 51. The pressure detection device 51 is arranged outside the cabin 1 and is used to monitor the pressure change in the pressure-changing chamber 15 in real time. The third gas circuit 4 is connected to an air compressor. A third exhaust solenoid valve 41 and a third air intake solenoid valve 42 are sequentially installed on the third gas circuit 4 to perform exhaust pressure relief and air intake pressure boosting on the pressure-changing chamber 15. In this embodiment, the pressure-changing chamber 15 is connected to a pressure gas pipe port 52 and an air circuit gas pipe port 43 extending to the outside of the cabin 1. The pressure detection tube 5 is connected to the pressure-changing chamber 15 through the pressure gas pipe port 52, and the third gas circuit 4 is connected to the pressure-changing chamber 15 through the air circuit gas pipe port 43.
[0031] The pressure detection device 51 is used to monitor the pressure changes in the transformer chamber 15. Together with the third exhaust solenoid valve 41 and the third intake solenoid valve 42, it can accurately control the exhaust pressure relief and intake pressure boost of the transformer chamber 15, thereby effectively regulating the cabin pressure and the temperature of the treatment chamber 11.
[0032] The present invention also provides a dual-chamber pressure-changing cooling method, which uses the above-mentioned dual-chamber pressure-changing cooling hyperbaric oxygen chamber, and includes the following steps: S1, such as Figure 4-5 As shown, the first exhaust solenoid valve 21, the second air intake solenoid valve 32 and the third exhaust solenoid valve 41 are closed, the first air intake solenoid valve 22, the second exhaust solenoid valve 31 and the third air intake solenoid valve 42 are opened, and the air compressor is started. The gas generated by the air compressor is divided into two parts. One part enters the pressure transformer chamber 15 through the third air path 4. The pressure of the pressure transformer chamber 15 is increased, causing its temperature to rise. The other part of the gas enters the treatment chamber 11 through the first air path 2, and enters the heat exchange chamber 12 through the air flow hole 14, exchanges heat with the pressure transformer chamber 15, so that the temperature of the pressure transformer chamber 15 drops, and is finally discharged through the second exhaust solenoid valve 31. In this process, the inlet and outlet air inside the cabin 1 are balanced, and the pressure inside the treatment chamber 11 is always kept stable. S2, such as Figure 6-7As shown, after the pressure in the transformer chamber 15 rises to a certain value, the first exhaust solenoid valve 21, the first air inlet solenoid valve 22, the second exhaust solenoid valve 31 and the third air inlet solenoid valve 42 are closed, and the second air inlet solenoid valve 32 and the third exhaust solenoid valve 41 are opened, and the gas in the transformer chamber 15 is discharged out of the cabin through the third exhaust solenoid valve 41, and the transformer chamber 15 is depressurized and cooled. At the same time, the air compressor drives the gas to enter the heat exchange chamber 12 through the second gas path 3. When the gas flows through the transformer chamber 15, it exchanges heat with the chamber wall to cool down, and then enters the treatment chamber 11 through the air flow hole 14, and the treatment chamber 11 is pressurized. In this process, the cooling of the gas heat exchange and the temperature increase caused by the pressurization of the treatment chamber 11 offset each other, so as to maintain the temperature of the treatment chamber 11 stable and comfortable; S3, such as Figure 4-7 As shown, when the pressure in the pressure-changing chamber 15 is the same as that outside the chamber, steps S1 and S2 are executed in a cycle in sequence. In the cycle state, the pressure in the treatment chamber 11 rises in a step-by-step manner until it reaches the treatment pressure required by the oxygen chamber, and the chamber 1 enters a stable pressure state. S4, such as Figure 8-9 As shown, after the cabin 1 enters the stable pressure state, if it needs to be cooled down again, repeat step S1 to stabilize the pressure in the treatment chamber 11 and increase the pressure in the transformer chamber 15. When the pressure in the transformer chamber 15 rises to a certain value, close the first air inlet solenoid valve 22, the second air exhaust solenoid valve 31 and the third air inlet solenoid valve 42, open the first exhaust solenoid valve 21, the second air inlet solenoid valve 32 and the third exhaust solenoid valve 41, and the gas generated by the air compressor enters the heat exchange chamber 12 from the second air path 3. When the gas flows through the transformer chamber 15, heat exchange and cooling are performed, and then the gas enters the treatment chamber 11 through the air flow hole 14, so that the temperature of the treatment chamber 11 drops, and finally it is discharged through the first exhaust solenoid valve 21. In this process, the air inlet and outlet inside the cabin 1 are balanced, and the pressure inside the treatment chamber 11 always remains stable.
[0033] The above-mentioned ideal embodiments of the present invention are used as inspiration, but it is obvious to those skilled in the art that such embodiments are provided by way of example only. Those skilled in the art will think of many changes, modifications and alternatives without departing from the thought and spirit of the present invention. It should be understood that in the process of practicing the present invention, various alternatives to the embodiments of the present invention described herein may be adopted. The attached claims are intended to define the scope of protection of the present invention, and therefore cover the modular composition, equivalent or alternatives within the scope of protection of these claims.
Claims
1. A dual-chamber variable pressure and temperature reduction hyperbaric oxygen chamber, characterized in that: include: A cabin (1), wherein a treatment chamber (11) and a heat exchange chamber (12) are provided inside the cabin (1), wherein the treatment chamber (11) and the heat exchange chamber (12) are separated by a partition (13), wherein the partition (13) is provided with air flow holes (14) for facilitating air circulation, and wherein a pressure change chamber (15) for heat exchange is provided inside the heat exchange chamber (12); The treatment cavity (11) is connected to a first gas path (2) connected to an air compressor, the heat exchange cavity (12) is connected to a second gas path (3) connected to the air compressor, a first exhaust solenoid valve (21) for exhaust and a first intake solenoid valve (22) for intake are sequentially mounted on the first gas path (2), and a second exhaust solenoid valve (31) and a second intake solenoid valve (32) are sequentially mounted on the second gas path (3); The pressure-changing chamber (15) is connected to a pressure detection tube (5) and a third gas path (4); the pressure detection tube (5) is connected to a pressure detection device (51); the third gas path (4) is connected to the air compressor; and a third exhaust solenoid valve (41) and a third intake solenoid valve (42) are sequentially mounted on the third gas path (4).
2. A dual-chamber variable pressure and temperature reduction hyperbaric oxygen chamber according to claim 1, characterized in that: The partition (13) is installed obliquely inside the cabin (1), with its top inclined toward one side of the treatment cavity (11), an air flow hole (14) is left between the top of the partition (13) and the cabin (1), and other parts of the partition (13) are sealed and installed with the cabin (1).
3. A dual-chamber variable pressure and temperature reduction hyperbaric oxygen chamber according to claim 1, characterized in that: The cavity material of the voltage transformation cavity (15) is a heat-conducting material.
4. A dual-chamber variable pressure and temperature reduction hyperbaric oxygen chamber according to claim 1, characterized in that: The pressure changing chamber (15) is connected to a pressure air pipe port (52) and an air path air pipe port (43) extending to the outside of the cabin (1); the pressure air pipe port (52) is connected to a pressure detection tube (5), and the air path air pipe port (43) is connected to a third air path (4).
5. A dual-chamber pressure-changing cooling method, using the dual-chamber pressure-changing cooling hyperbaric oxygen chamber according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1, closing the first exhaust solenoid valve (21), the second air intake solenoid valve (32) and the third exhaust solenoid valve (41), opening the first air intake solenoid valve (22), the second exhaust solenoid valve (31) and the third air intake solenoid valve (42), starting the air compressor, and dividing the gas generated by the air compressor into two parts. One part enters the pressure transformer chamber (15) through the third air path (4), and the pressure of the pressure transformer chamber (15) is increased, causing its temperature to rise. The other part of the gas enters the treatment chamber (11) through the first air path (2), and enters the heat exchange chamber (12) through the air flow hole (14), exchanges heat with the pressure transformer chamber (15), causing the temperature of the pressure transformer chamber (15) to drop, and finally is discharged through the second exhaust solenoid valve (31). During this process, the air inlet and outlet inside the cabin (1) are balanced, and the pressure inside the treatment chamber (11) remains stable at all times; S2, after the pressure in the pressure-changing chamber (15) rises to a certain value, the first exhaust solenoid valve (21), the first air intake solenoid valve (22), the second exhaust solenoid valve (31) and the third air intake solenoid valve (42) are closed, and the second air intake solenoid valve (32) and the third exhaust solenoid valve (41) are opened, and the gas in the pressure-changing chamber (15) is discharged outside the cabin through the third exhaust solenoid valve (41), and the pressure-changing chamber (15) is depressurized and cooled. At the same time, the air compressor drives the gas to enter the heat exchange chamber (12) through the second air path (3). When the gas flows through the pressure-changing chamber (15), it exchanges heat with the chamber wall and cools down. Then, the gas enters the treatment chamber (11) through the air flow hole (14), and the pressure of the treatment chamber (11) is increased. In this process, the cooling caused by the heat exchange of the gas and the temperature increase caused by the pressurization of the treatment chamber (11) offset each other, so that the temperature of the treatment chamber (11) is maintained stable and comfortable; S3, when the pressure in the pressure changing chamber (15) is the same as that outside the chamber, steps S1 and S2 are executed in a cycle in sequence, and in the cycle state, the pressure in the treatment chamber (11) rises in a stepwise manner until it reaches the treatment pressure required by the oxygen chamber, and the chamber body (1) enters a stable pressure state; S4. When the cabin (1) enters a stable pressure state and needs to be cooled again, step S1 is repeated to stabilize the pressure of the treatment chamber (11) and increase the pressure of the pressure-changing chamber (15). When the pressure in the pressure-changing chamber (15) increases to a certain value, the first air intake solenoid valve (22), the second air exhaust solenoid valve (31) and the third air intake solenoid valve (42) are closed, and the first exhaust solenoid valve (21), the second air intake solenoid valve (32) and the third exhaust solenoid valve (41) are opened. The gas generated by the air compressor enters the heat exchange chamber (12) from the second air path (3). When the gas flows through the pressure-changing chamber (15), heat exchange and cooling are performed. The gas then enters the treatment chamber (11) through the air flow hole (14), thereby reducing the temperature of the treatment chamber (11). Finally, the gas is discharged through the first exhaust solenoid valve (21). During this process, the air intake and outlet of the cabin (1) are balanced, and the pressure inside the treatment chamber (11) remains stable.