Magnetic suspension centrifugal two-stage oxygen compressor with oxygen air cooling system

Abstract

The invention is applied to the technical field of oxygen compressors, and discloses a magnetic suspension centrifugal two-stage oxygen compressor with an oxygen air cooling system, the magnetic suspension centrifugal two-stage oxygen compressor comprises a compressor shell, a flange mounting plate is fixedly arranged on the outer side surface of the compressor shell, and an oxygen suction port and an oxygen exhaust port are fixedly formed in the outer surface of the compressor shell; a cooling mechanism is arranged on the surface of the inner side of the oxygen exhaust port, and oxygen exhausted from the oxygen exhaust port is cooled in good time. According to the magnetic suspension centrifugal type two-stage oxygen compressor with the oxygen air cooling system, the heat exchange plates can make full contact with oxygen and efficiently exchange heat through the heat exchange cavities in the heat exchange turning plates and the heat exchange plates on the side surfaces, cooling gas is introduced from the outside to circularly flow in the heat exchange cavities, oxygen heat can be rapidly taken away, and the oxygen cooling efficiency is improved. Under different working conditions, the temperature of exhausted oxygen can be effectively reduced to a suitable range, and the strict requirements of the chemical industry, the medical industry and other industries for the oxygen temperature are met.

Description

Technical Field

[0001] The invention relates to the technical field of oxygen compressors, in particular to a magnetically suspended centrifugal two-stage oxygen compressor with an oxygen air cooling system. Background Art

[0002] In today's highly developed modern industrial field, oxygen compressors are undoubtedly an extremely critical and indispensable gas compression equipment. They are widely used in the production processes of many industries such as chemical, steel, and medical. Among the many types of oxygen compressors, the magnetic levitation centrifugal two-stage oxygen compressor stands out with its excellent performance. Its higher efficiency can process a larger amount of oxygen per unit time, effectively improving production efficiency and meeting the urgent needs of large-scale industrial production; the lower noise level greatly improves the working environment in the factory workshop and reduces the potential harm of noise pollution to the physical and mental health of operators; and the smaller vibration amplitude not only reduces the risk of equipment failure caused by vibration, but also provides a stable and reliable guarantee for the precise operation of the equipment, ensuring the accuracy and stability of the oxygen compression process. However, although the magnetic levitation centrifugal two-stage oxygen compressor has shown significant advantages in many aspects, it has always been plagued by an extremely prominent and difficult problem in its long actual operation process, that is, the stubborn problem of excessively high exhaust temperature. When the oxygen After the air has gone through a complex compression process inside the compressor, it is often wrapped with a large amount of heat generated by the compression process at the moment of being discharged from the oxygen exhaust port, causing the gas temperature to rise sharply, significantly rising to a level far beyond the normal range. From the perspective of the structural integrity and operational stability of the equipment itself, the high-temperature oxygen is like a surging heat wave, continuously washing the oxygen exhaust port and the intricate pipeline system closely connected to it. Under the long-term high-temperature attack, these components inevitably suffer from severe thermal erosion and thermal stress. Due to the long-term exposure to such harsh high-temperature environment, the original strength and toughness of the exhaust pipe will gradually be lost over time, the pipe wall will gradually become thinner, and the structural strength will be greatly reduced. Under the double attack of internal high-pressure oxygen and external thermal stress, it is very easy to deform, twist and other abnormal conditions, and even serious cracking may occur in some weak parts. The occurrence of these damages directly leads to a significant reduction in the service life of the equipment. The equipment that was originally expected to operate stably for a long time has to face frequent maintenance and replacement in advance;

[0003] Excessively high oxygen temperature has become a key factor that hinders the smooth progress of production and affects product quality and production safety. It is completely unable to meet the stringent requirements of these processes. Taking the oxygen-enriched steelmaking process, which is crucial in the steel industry, as an example, oxygen plays an extremely critical role in this process. It is directly involved in the complex chemical reactions in the steelmaking furnace. However, this reaction has extremely precise control requirements for the temperature of oxygen, and it must be strictly limited to an extremely narrow temperature range. Once the oxygen temperature is too high, the various chemical reactions in the steelmaking process will not be able to proceed at the expected rate and direction, which will have a serious negative impact on the quality of the molten steel. Similarly, high-temperature oxygen may cause severe burns to the patient's extremely fragile respiratory organs and other body organs when used directly, causing a series of complications such as respiratory inflammation and edema, which will bring great pain and harm to the patient's health. Summary of the invention

[0004] The object of the present invention is to provide a magnetically suspended centrifugal two-stage oxygen compressor with an oxygen air cooling system to solve the problem in the above background technology that the output oxygen temperature is too high to be used directly.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a magnetically suspended centrifugal two-stage oxygen compressor with an oxygen air cooling system, comprising a compressor casing, a flange mounting plate is fixedly provided on the outer surface of the compressor casing, and an oxygen intake port and an oxygen exhaust port are fixedly provided on the outer surface of the compressor casing, a central axis is provided inside the compressor casing, and a coupling is connected to one end of the central axis, and an impeller is fixedly provided on the outer surface of the central axis, a flow guide is provided on the inner surface of the compressor casing, a sealing ring is provided on the inner surface of the compressor casing where the two ends of the central axis are located, and a magnetically suspended bearing is provided on the inner surface of the compressor casing, and a cooling mechanism is provided on the inner surface of the oxygen exhaust port to cool the oxygen discharged from the oxygen exhaust port in a timely manner;

[0006] The cooling mechanism includes: a heat exchange flap, which is rotatably mounted on the inner surface of the oxygen exhaust port, and a heat exchange cavity is provided inside the heat exchange flap, a heat exchange plate is fixedly arranged on the side surface of the heat exchange flap, an upper air inlet cavity and a lower air inlet cavity are provided inside the side surface of the oxygen exhaust port, and an upper air inlet port and a lower air outlet are fixedly mounted on the outer surface of the oxygen exhaust port, fixed connectors are fixedly arranged at one end of the upper air inlet cavity and the lower air inlet cavity, and a movable connector is fixedly arranged on the outer surface of the heat exchange flap opposite to the two fixed connectors, and a hose is connected between the movable connector and the opposite fixed connector.

[0007] Preferably, a spring is connected between the heat exchange flap and the inner surface of the oxygen exhaust port, the heat exchange plate is evenly arranged on the side surface of the heat exchange flap, the heat exchange plate is inclined, and one end of the heat exchange plate is located inside the heat exchange cavity.

[0008] By adopting the above technical solution, the uniform arrangement of the heat exchange plates can increase the contact area with oxygen and improve the heat exchange efficiency. The inclined design is conducive to guiding the oxygen flow to better contact and exchange heat with the heat exchange plates.

[0009] Preferably, one end of the upper air inlet is connected to the upper air inlet cavity, one end of the lower air outlet is connected to the lower air inlet cavity, and the two fixed connectors are respectively connected to the upper air inlet cavity and the lower air inlet cavity.

[0010] The above technical solution ensures that the cooling gas can enter the heat exchange cavity of the heat exchange flap, and the gas after heat exchange is discharged from the lower air outlet, forming a complete and orderly cooling gas circulation path, ensuring the stable operation of the cooling mechanism and achieving continuous cooling of the oxygen at the oxygen exhaust port.

[0011] Preferably, a thermal expansion driving mechanism is provided on the side surface of the oxygen exhaust port, and the working state of the cooling mechanism is regulated by monitoring the temperature of the oxygen discharged from the oxygen exhaust port.

[0012] By adopting the above technical solution, when the exhaust temperature rises, the thermal expansion drive mechanism is activated to change the angle of the heat exchange flap, thereby increasing the cooling intensity and achieving precise temperature control.

[0013] Preferably, the thermal expansion driving mechanism includes a piston cylinder, which is fixedly arranged on the outer surface of the oxygen exhaust port, and a sliding piston rod is fixedly installed inside the piston cylinder, and a magnetic push rod is fixedly installed at one end of the piston rod, a sliding sealing baffle is installed inside the upper air intake chamber, and a connecting ring is fixedly connected between adjacent piston cylinders, an expansion cylinder is fixedly connected to the lower surface of one end of the connecting ring, and the lower end of the expansion cylinder is penetrated by a real-time heat-conducting rod, and the lower end of the real-time heat-conducting rod penetrates the inner surface of the lower end of the oxygen exhaust port.

[0014] By adopting the above technical solution, the real-time heat conduction rod can quickly transfer the heat of oxygen at the oxygen exhaust port to the expansion cylinder, causing thermal expansion of the medium in the expansion cylinder, thereby triggering the action of the entire thermal expansion drive mechanism and realizing effective regulation of the cooling mechanism.

[0015] Preferably, the piston cylinder and the piston rod are connected by sliding friction, and the piston rod and the magnetic push rod are concentrically arranged, and one end of the magnetic push rod is in contact with the outer surface of the heat exchange flap.

[0016] By adopting the above technical solution, the sliding friction connection ensures that the piston rod can stably perform linear sliding motion in the piston cylinder, and the magnetic push rod fits the outer surface of the heat exchange flap so that the linear motion of the piston rod can be accurately converted into rotation of the heat exchange flap.

[0017] Preferably, a spring is connected between the sealing baffle and the inner surface of the upper air inlet cavity, and an outer surface of one side of the sealing baffle fits with an inner surface of the upper air inlet cavity penetrated by the upper air inlet port.

[0018] By adopting the above technical solution, the function of the spring is to provide pre-tightening force for the sealing baffle, so that it can fit tightly on the inner surface of the upper air intake cavity penetrated by the upper air intake port in the initial state, preventing the cooling gas from entering the upper air intake cavity when cooling is not required or the cooling intensity is low, thereby ensuring normal exhaust of the equipment.

[0019] Preferably, the connecting ring passes through the side surface of the piston cylinder, and the connecting ring is connected to the piston cylinder, and the connecting ring is connected to the upper end of the expansion cylinder.

[0020] By adopting the above technical solution, the pressure generated by the temperature change of the medium in the expansion cylinder is evenly transmitted to each piston cylinder, so that all piston rods move synchronously, ensuring the consistency and coordination of the action of the thermal expansion drive mechanism.

[0021] Preferably, the lower end of the real-time heat-conducting rod is annular in design, and the outer surface of the annular design of the lower end of the real-time heat-conducting rod is provided with a columnar protrusion, and the columnar protrusion at the lower end of the real-time heat-conducting rod penetrates the inner surface of the lower end of the oxygen exhaust port.

[0022] By adopting the above technical solution, the columnar protrusion on the outer surface of the lower end of the real-time heat-conducting rod increases the contact area between the real-time heat-conducting rod and the oxygen in the oxygen exhaust port, improves the heat conduction efficiency, and can more quickly absorb the heat of oxygen and transfer it to the heat-conducting oil inside the real-time heat-conducting rod.

[0023] Preferably, the real-time heat-conducting rod is hollow in design, and the interior of the real-time heat-conducting rod is filled with heat-conducting oil, and the upper end of the real-time heat-conducting rod is located inside the expansion tube, and a heat-exchange rod is fixedly provided at one end of the real-time heat-conducting rod located inside the expansion tube, and the heat-exchange rod is arranged in an umbrella shape at the upper end of the real-time heat-conducting rod.

[0024] By adopting the above technical solution, the hollow design and filling with heat transfer oil utilize the good thermal conductivity of the heat transfer oil, which can quickly transfer the heat absorbed by the lower end of the real-time heat transfer rod to the expansion cylinder at the upper end. The heat exchange rod is arranged in an umbrella shape at the upper end of the real-time heat transfer rod, which further increases the contact area between the heat transfer oil and the medium in the expansion cylinder, accelerates the heat exchange speed, and enables the medium in the expansion cylinder to expand or contract more quickly due to heat changes.

[0025] Compared with the prior art, the beneficial effects of the present invention are: the magnetic suspension centrifugal two-stage oxygen compressor with oxygen air cooling system:

[0026] 1. The heat exchange cavity inside the heat exchange flap and the heat exchange plate on the side surface can make the heat exchange plate fully contact with oxygen and efficiently exchange heat. By introducing cooling gas from the outside to circulate in the heat exchange cavity, the heat of oxygen can be quickly taken away. Under different working conditions, the exhaust oxygen temperature can be effectively reduced to an appropriate range, meeting the strict requirements of chemical, medical and other industries on oxygen temperature, and ensuring the stability of production process and product quality;

[0027] Furthermore, precise automatic temperature control is achieved through the synergy between the thermal expansion drive mechanism and the cooling mechanism. When the oxygen temperature at the oxygen exhaust port rises, the real-time heat conduction rod quickly senses and transfers the heat to the expansion cylinder, causing the medium in the expansion cylinder to expand and drive the piston rod to move, thereby controlling the angle of the heat exchange flap and the on and off of the cooling gas. This automatic adjustment mechanism based on temperature changes ensures that the oxygen temperature always fluctuates very little within the set range, without the need for frequent manual intervention, greatly improving the intelligence level and reliability of equipment operation.

[0028] Furthermore, compared with traditional large-scale cooling equipment or high-energy consumption cooling methods, the air cooling system of the present invention has a compact structure and low energy consumption. It does not require additional large refrigeration units or a large number of cooling medium circulation systems, thereby reducing the overall power consumption of the equipment. In addition, due to the improved operating stability of the equipment and reduced failures, additional resource consumption and waste emissions caused by frequent maintenance or replacement of parts of the equipment are avoided. At the same time, precise temperature control is also conducive to improving the utilization efficiency of oxygen and reducing the loss of oxygen during compression and transportation, thereby achieving effective utilization of resources and environmental protection from multiple aspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the three-dimensional structure of the compressor casing, the oxygen intake port and the oxygen exhaust port connected to the present invention;

[0031] Figure 3 It is a schematic diagram of the three-dimensional structure of the overall cutaway surface of the present invention;

[0032] Figure 4 It is a three-dimensional structural schematic diagram of the connection section of the compressor casing, coupling and central shaft of the present invention;

[0033] Figure 5 It is a three-dimensional structural schematic diagram of the cross-section surface connecting the compressor casing and the oxygen exhaust port of the present invention;

[0034] Figure 6It is a three-dimensional structural schematic diagram of the connection section of the expansion cylinder, the real-time heat-conducting rod and the heat-exchanging rod of the present invention;

[0035] Figure 7 It is a three-dimensional structural schematic diagram of the cross-section surface of the oxygen exhaust port and the heat exchange flap connection of the present invention;

[0036] Figure 8 It is a three-dimensional structural schematic diagram of the connection section of the piston cylinder, the piston rod and the magnetic ejector rod of the present invention;

[0037] Fig. 9 It is a schematic diagram of the three-dimensional structure of the heat exchange cavity, the heat exchange plate and the upper air inlet cavity connection cross-section of the present invention;

[0038] Fig.10 It is a three-dimensional structural schematic diagram of the cross-section surface of the connection between the oxygen exhaust port and the sealing baffle of the present invention.

[0039] In the figure: 1. compressor casing; 2. flange mounting plate; 3. oxygen intake port; 4. oxygen exhaust port; 5. coupling; 6. center shaft; 7. impeller; 8. flow guide; 9. sealing ring; 10. magnetic bearing; 11. heat exchange flap; 12. heat exchange cavity; 13. heat exchange plate; 14. upper air inlet cavity; 15. lower air inlet cavity; 16. upper air inlet; 17. lower air outlet; 18. fixed connector; 19. movable connector; 20. piston cylinder; 21. piston rod; 22. magnetic push rod; 23. sealing baffle; 24. connecting ring; 25. expansion cylinder; 26. real-time heat conduction rod; 27. heat exchange rod. DETAILED DESCRIPTION

[0040] 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. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figure 1-Figure 10 The present invention provides a technical solution: a magnetically suspended centrifugal two-stage oxygen compressor with an oxygen air cooling system.

[0042] Embodiment 1: This embodiment discloses a compressor casing 1, a flange mounting plate 2 is fixedly provided on the outer surface of the compressor casing 1, and an oxygen intake port 3 and an oxygen exhaust port 4 are fixedly provided on the outer surface of the compressor casing 1, a central shaft 6 is provided inside the compressor casing 1, and a coupling 5 is connected to one end of the central shaft 6, and an impeller 7 is fixedly provided on the outer surface of the central shaft 6, a flow guide 8 is provided on the inner surface of the compressor casing 1, a sealing ring 9 is provided on the inner surface of the compressor casing 1 where both ends of the central shaft 6 are located, and a magnetic bearing 10 is provided on the inner surface of the compressor casing 1, and a cooling mechanism is provided on the inner surface of the oxygen exhaust port 4, and the oxygen discharged from the oxygen exhaust port 4 is cooled in a timely manner;

[0043] The cooling mechanism includes: a heat exchange flap 11, the heat exchange flap 11 is rotatably mounted on the inner surface of the oxygen exhaust port 4, and a heat exchange cavity 12 is opened inside the heat exchange flap 11, a heat exchange plate 13 is fixedly arranged on the side surface of the heat exchange flap 11, an upper air inlet cavity 14 and a lower air inlet cavity 15 are opened inside the side surface of the oxygen exhaust port 4, and an upper air inlet 16 and a lower air outlet 17 are fixedly installed on the outer surface of the oxygen exhaust port 4, a fixed connector 18 is fixedly arranged at one end of the upper air inlet cavity 14 and the lower air inlet cavity 15, and a movable connector 19 is fixedly arranged on the outer surface of the heat exchange flap 11 opposite to the two fixed connectors 18, and a hose is connected between the movable connector 19 and the opposite fixed connector 18;

[0044] A spring is connected between the heat exchange flap 11 and the inner surface of the oxygen exhaust port 4, and the heat exchange plate 13 is evenly arranged on the side surface of the heat exchange flap 11, and the heat exchange plate 13 is inclined, and one end of the heat exchange plate 13 is located inside the heat exchange cavity 12;

[0045] One end of the upper air inlet 16 is connected to the upper air inlet cavity 14, one end of the lower air outlet 17 is connected to the lower air inlet cavity 15, and two fixed connectors 18 are respectively connected to the upper air inlet cavity 14 and the lower air inlet cavity 15;

[0046] The compressor casing 1 is fixedly installed with the mounting platform through the flange mounting plate 2. During normal use, the power equipment drives the central shaft 6 and the impeller 7 inside the compressor casing 1 to rotate through the coupling 5. The central shaft 6 reduces the friction with the compressor casing 1 under the action of the magnetic bearing 10. The central shaft 6 ensures sealing through the sealing ring 9. The air flows to the oxygen exhaust port 4 through the oxygen intake port 3 and the guide channel 8 and is discharged. During the process, the air flows through the heat exchange plate 13 on the side surface of the heat exchange flap 11, and the heat is conducted to the heat exchange cavity 12 by the heat exchange plate 13. Then the external air pipe injects the cooling air into the upper air intake cavity 14 through the upper air intake port 16. The upper air intake cavity 14 is injected into the upper end of the heat exchange cavity 12 through the fixed connector 18 and the movable connector 19 in turn. The air takes away the heat in the heat exchange cavity 12 and transmits it to the lower air intake cavity 15 through the movable connector 19 and the fixed connector 18 at the lower end of the heat exchange flap 11 and is finally discharged through the lower air outlet 17.

[0047] Embodiment 2: Based on Embodiment 1, this embodiment discloses that a thermal expansion driving mechanism is provided on the side surface of the oxygen exhaust port 4, and the working state of the cooling mechanism is regulated by monitoring the temperature of the oxygen discharged from the oxygen exhaust port 4;

[0048] The thermal expansion drive mechanism includes a piston cylinder 20, which is fixedly arranged on the outer surface of the oxygen exhaust port 4, and a sliding piston rod 21 is fixedly installed inside the piston cylinder 20, and a magnetic push rod 22 is fixedly arranged at one end of the piston rod 21, and a sliding sealing baffle 23 is installed inside the upper air intake chamber 14, and a connecting ring 24 is fixedly connected between adjacent piston cylinders 20, and an expansion cylinder 25 is fixedly connected to the lower surface of one end of the connecting ring 24, and the lower end of the expansion cylinder 25 is penetrated by a real-time heat-conducting rod 26, and the lower end of the real-time heat-conducting rod 26 penetrates the inner surface of the lower end of the oxygen exhaust port 4;

[0049] The piston cylinder 20 and the piston rod 21 are connected by sliding friction, and the piston rod 21 and the magnetic push rod 22 are arranged concentrically, and one end of the magnetic push rod 22 is in contact with the outer surface of the heat exchange flap 11;

[0050] A spring is connected between the sealing baffle 23 and the inner surface of the upper air inlet cavity 14, and the outer surface of one side of the sealing baffle 23 is in contact with the inner surface of the upper air inlet cavity 14 penetrated by the upper air inlet port 16;

[0051] The connecting ring 24 passes through the side surface of the piston cylinder 20, and the connecting ring 24 is connected to the piston cylinder 20, and the connecting ring 24 is connected to the upper end of the expansion cylinder 25;

[0052] The lower end of the real-time heat-conducting rod 26 is annular in design, and the outer surface of the annular lower end of the real-time heat-conducting rod 26 is provided with a columnar protrusion, and the columnar protrusion at the lower end of the real-time heat-conducting rod 26 penetrates the inner surface of the lower end of the oxygen exhaust port 4;

[0053] The real-time heat-conducting rod 26 is hollow in design, and the interior of the real-time heat-conducting rod 26 is filled with heat-conducting oil, and the upper end of the real-time heat-conducting rod 26 is located inside the expansion tube 25, and a heat-exchanging rod 27 is fixedly arranged at one end of the real-time heat-conducting rod 26 located inside the expansion tube 25, and the heat-exchanging rod 27 is arranged in an umbrella shape at the upper end of the real-time heat-conducting rod 26;

[0054] When oxygen is discharged through the oxygen exhaust port 4, as the temperature of oxygen increases, heat is conducted to the heat-conducting oil inside the real-time heat-conducting rod 26 through the lower end of the real-time heat-conducting rod 26, and the heat is conducted upward to the heat-exchange rod 27 along with the heat-conducting oil. The heat is conducted to the temporal part of the expansion cylinder 25 through the heat-exchange rod 27, and the air inside the expansion cylinder 25 expands to increase the internal pressure of the connecting ring 24. The internal pressure of the connecting ring 24 is conducted to the piston rod 21 through the piston cylinder 20 to push the piston rod 21, and the piston rod 21 drives the magnetic push rod The sliding of 22 causes the heat exchange flap 11 to rotate toward the inside of the oxygen exhaust port 4, so as to increase the contact area between the heat exchange plate 13 and the output oxygen. At the same time, as the magnetic push rod 22 slides, the sealing baffle 23 loses the adsorption of the magnetic push rod 22 and slides up under the drive of the spring between it and the upper air inlet cavity 14 to break away from the fit with one end of the upper air inlet 16. At this time, the air pipe connected to one end of the upper air inlet 16 is injected into the upper air inlet cavity 14 through the upper air inlet 16, thereby completing the injection of cooling gas and the adjustment of the angle of the heat exchange flap 11.

[0055] The above specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention and do not limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims

1. A magnetically suspended centrifugal two-stage oxygen compressor with an oxygen air cooling system, comprising a compressor casing (1), a flange mounting plate (2) being fixedly provided on the outer surface of the compressor casing (1), an oxygen intake port (3) and an oxygen exhaust port (4) being fixedly provided on the outer surface of the compressor casing (1), a central shaft (6) being provided inside the compressor casing (1), one end of the central shaft (6) being connected to a coupling (5), and an impeller (7) being fixedly provided on the outer surface of the central shaft (6), a flow guide (8) being provided on the inner surface of the compressor casing (1), sealing rings (9) being provided on the inner surface of the compressor casing (1) where the two ends of the central shaft (6) are located, and a magnetically suspended bearing (10) being provided on the inner surface of the compressor casing (1), characterized in that: The inner surface of the oxygen exhaust port (4) is provided with a cooling mechanism for timely cooling the oxygen discharged from the oxygen exhaust port (4); The cooling mechanism comprises: a heat exchange flap (11), the heat exchange flap (11) being rotatably mounted on the inner surface of the oxygen exhaust port (4), and a heat exchange cavity (12) being provided inside the heat exchange flap (11), a heat exchange plate (13) being fixedly mounted on the side surface of the heat exchange flap (11), an upper air inlet cavity (14) and a lower air inlet cavity (15) being provided inside the side surface of the oxygen exhaust port (4), and an upper air inlet port (16) and a lower air outlet port (17) being fixedly mounted on the outer surface of the oxygen exhaust port (4), a fixed connector (18) being fixedly mounted on one end of the upper air inlet cavity (14) and the lower air inlet cavity (15), and a movable connector (19) being fixedly mounted on the outer surface of the heat exchange flap (11) opposite to the two fixed connectors (18), and a hose being connected between the movable connector (19) and the opposite fixed connector (18).

2. A magnetically suspended centrifugal two-stage oxygen compressor with an oxygen air cooling system according to claim 1, characterized in that: A spring is connected between the heat exchange flap (11) and the inner surface of the oxygen exhaust port (4); the heat exchange plate (13) is evenly arranged on the side surface of the heat exchange flap (11); the heat exchange plate (13) is inclined, and one end of the heat exchange plate (13) is located inside the heat exchange cavity (12).

3. The magnetically suspended centrifugal two-stage oxygen compressor with an oxygen air cooling system according to claim 1, characterized in that: One end of the upper air inlet (16) is connected to the upper air inlet cavity (14), one end of the lower air outlet (17) is connected to the lower air inlet cavity (15), and the two fixed connectors (18) are respectively connected to the upper air inlet cavity (14) and the lower air inlet cavity (15).

4. The magnetically suspended centrifugal two-stage oxygen compressor with an oxygen air cooling system according to claim 1, characterized in that: A thermal expansion driving mechanism is provided on the side surface of the oxygen exhaust port (4), and the operating state of the cooling mechanism is regulated by monitoring the temperature of the oxygen discharged from the oxygen exhaust port (4).

5. A magnetically suspended centrifugal two-stage oxygen compressor with an oxygen air cooling system according to claim 4, characterized in that: The thermal expansion driving mechanism comprises a piston cylinder (20), the piston cylinder (20) is fixedly arranged on the outer surface of the oxygen exhaust port (4), and a sliding piston rod (21) is fixedly installed inside the piston cylinder (20), and a magnetic push rod (22) is fixedly installed at one end of the piston rod (21), a sliding sealing baffle (23) is installed inside the upper air intake chamber (14), and a connecting ring (24) is fixedly connected between adjacent piston cylinders (20), and an expansion cylinder (25) is fixedly connected to the lower surface of one end of the connecting ring (24), and the lower end of the expansion cylinder (25) is penetrated by a real-time heat-conducting rod (26), and the lower end of the real-time heat-conducting rod (26) penetrates the inner surface of the lower end of the oxygen exhaust port (4).

6. A magnetically suspended centrifugal two-stage oxygen compressor with an oxygen air cooling system according to claim 5, characterized in that: The piston cylinder (20) and the piston rod (21) are connected by sliding friction, and the piston rod (21) and the magnetic push rod (22) are concentrically arranged, and one end of the magnetic push rod (22) is in contact with the outer surface of the heat exchange flap (11).

7. The magnetically suspended centrifugal two-stage oxygen compressor with an oxygen air cooling system according to claim 5, characterized in that: A spring is connected between the sealing baffle (23) and the inner surface of the upper air inlet cavity (14), and an outer surface of one side of the sealing baffle (23) fits with the inner surface of the upper air inlet cavity (14) penetrated by the upper air inlet port (16).

8. The magnetically suspended centrifugal two-stage oxygen compressor with an oxygen air cooling system according to claim 5, characterized in that: The connecting ring (24) passes through the side surface of the piston cylinder (20), and the connecting ring (24) is connected to the piston cylinder (20), and the connecting ring (24) is connected to the upper end of the expansion cylinder (25).

9. The magnetically suspended centrifugal two-stage oxygen compressor with an oxygen air cooling system according to claim 5, characterized in that: The lower end of the real-time heat-conducting rod (26) is designed in an annular shape, and the outer surface of the annular design of the lower end of the real-time heat-conducting rod (26) is provided with a columnar protrusion, and the columnar protrusion at the lower end of the real-time heat-conducting rod (26) penetrates the inner surface of the lower end of the oxygen exhaust port (4).

10. The magnetically suspended centrifugal two-stage oxygen compressor with an oxygen air cooling system according to claim 5, characterized in that: The real-time heat-conducting rod (26) is of hollow design, and the interior of the real-time heat-conducting rod (26) is filled with heat-conducting oil, and the upper end of the real-time heat-conducting rod (26) is located inside the expansion tube (25), and a heat-exchanging rod (27) is fixedly arranged at one end of the real-time heat-conducting rod (26) located inside the expansion tube (25), and the heat-exchanging rod (27) is arranged in an umbrella shape at the upper end of the real-time heat-conducting rod (26).

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