A two-stage centrifugal magnetic suspension air compressor with near-isothermal compression

Abstract

The present invention discloses a two-stage centrifugal magnetic levitation air compressor with near-isothermal compression, which relates to the technical field of air compressors, and includes an air compressor body and a buffer device, wherein an air inlet pipe is fixedly installed on the front side of the air compressor body, a connecting pipe is slidably installed on the inner wall of the air inlet pipe, a connecting hole is opened on the circumferential surface of the air inlet pipe, and an adsorption plate is fixedly installed on the inner wall of the air inlet pipe, wherein the buffer device includes a protective groove, a stabilizing frame, a protective rod, a T-shaped rod, a U-shaped frame, a buffer frame, a buffer plate, a buffer rod and a buffer hole, the buffer plate can only move slowly horizontally so that the buffer rod and the U-shaped frame can only move slowly, and the U-shaped frame can only move slowly to perform buffering protection on the connecting pipe that is impacted by airflow, and by performing buffering protection on the connecting pipe, the airflow impact when the air compressor body is suddenly started or stopped can be effectively reduced, thereby reducing the risk of damage to the connecting pipe and the air inlet pipe due to airflow impact.

Description

Technical Field

[0001] The invention relates to the technical field of air compressors, in particular to a two-stage centrifugal magnetic suspension air compressor with near-isothermal compression. Background Art

[0002] The two-stage centrifugal magnetic levitation air compressor with near-isothermal compression usually consists of a magnetic levitation main engine, an air intake system, a cooling device and an exhaust system.

[0003] The patent with patent announcement number CN220134218U relates to a high-efficiency and energy-saving magnetic levitation air compressor, including a magnetic levitation air compressor body, two cross frames are arranged on the upper and lower sides of the magnetic levitation air compressor body, and connecting seats are fixedly installed on both sides of the cross frames by bolts, and the connecting seats are fixedly connected to the magnetic levitation air compressor body by bolts, and two concave mounting frames are fixedly installed on each of the cross frames by bolts, and an L-shaped mounting plate is fixedly installed on each of the cross frames by bolts, and a plurality of connecting rods are fixedly installed on the cross frames by bolts, and mounting holes 1 are provided on both sides of the concave mounting frames, and mounting holes 2 are provided on the L-shaped mounting plates, and a rubber seat 1 is provided at the connection between the concave mounting frames and the cross frames, and a rubber seat 2 is provided at the connection between the L-shaped mounting plates and the cross frames. This structure enables the magnetic levitation air compressor body to be installed at multiple positions of the carrier, and the installation is flexible.

[0004] In the above patent, a rubber seat 1 is provided at the connection between the concave mounting frame and the cross frame, and a rubber seat 2 is provided at the connection between the L-shaped mounting plate and the cross frame, so that the main body of the magnetic levitation air compressor can be installed at multiple positions of the carrier. However, it is difficult to provide buffering protection for the connecting pipe when the connecting pipe is impacted by the airflow. When the air compressor body is suddenly started or stopped, the airflow in the connecting pipe may fluctuate violently. The connecting pipe is frequently impacted by the airflow, which may cause leakage or deformation, so that the air flow entering the air compressor body may be unstable, thereby affecting the air intake and airflow quality of the air compressor body. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a two-stage centrifugal magnetic suspension air compressor with near-isothermal compression, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a two-stage centrifugal magnetic levitation air compressor with near isothermal compression, comprising an air compressor body and a buffer device, wherein an air inlet pipe is fixedly installed on the front side of the air compressor body, a connecting pipe is slidably installed on the inner wall of the air inlet pipe, a connecting hole is opened on the circumferential surface of the air inlet pipe, an adsorption plate is fixedly installed on the inner wall of the air inlet pipe, wherein the buffer device comprises a protective groove, a stabilizing frame, a protective rod, a T-shaped rod, a U-shaped frame, a buffer frame, a buffer plate, a buffer rod and a buffer hole, and the buffer plate can only move slowly horizontally so that the buffer rod and the U-shaped frame It can only move slowly, and the U-shaped frame can only move slowly to provide buffering protection for the connecting pipe that is impacted by the airflow. The protective groove is opened on the circumferential surface of the connecting pipe, the stabilizing frame is fixedly installed on the front side of the air compressor body, the protective rod slides through the inner and outer walls of the stabilizing frame, the T-shaped rod is fixedly installed on the top of the protective rod, the U-shaped frame is fixedly installed on the circumferential surface of the connecting pipe, the buffer frame is fixedly installed on the front side of the air compressor body, the buffer plate is slidably installed on the inner wall of the buffer frame, the buffer rod is fixedly installed on the front side of the buffer plate, the buffer hole is opened on the front side of the buffer plate, and liquid is arranged inside the buffer frame.

[0007] According to the above technical solution, the protection rod contacts the inner wall of the protection groove, a No. 1 spring is arranged between the T-shaped rod and the stabilizing frame, the No. 1 spring can drive the T-shaped rod to reset, and the buffer rod contacts the inner wall of the U-shaped frame.

[0008] According to the above technical solution, the buffer plate passes through the inner and outer walls of the buffer frame, the bottom of the T-shaped rod is set as an inclined surface, and a rubber ring is set between the buffer plate and the buffer frame. The rubber ring can improve the sealing between the buffer plate and the buffer frame.

[0009] According to the above technical solution, an adsorption device for improving air purity is arranged inside the connecting pipe, and an auxiliary device is arranged on the surface of the air inlet pipe. The adsorption device includes an L-shaped rod, a control tooth block, a rotating rod, a control gear, a stirring rod and an arc panel. The rotation of the rotating rod drives the stirring rod to rotate, and the rotation of the stirring rod scrapes off the sand and dust adhered to the front side of the adsorption plate. The L-shaped rod slides through the inner and outer walls of the air inlet pipe, the control tooth block is fixedly installed on the left side of the L-shaped rod, the rotating rod rotates through the front and rear walls of the adsorption plate, the control gear is fixedly installed on the circumferential surface of the rotating rod, the stirring rod is fixedly installed on the circumferential surface of the rotating rod, and the arc panel is fixedly installed on the front side of the adsorption plate.

[0010] According to the above technical solution, a spiral spring is arranged between the rotating rod and the adsorption plate, one end of the spiral spring is arranged on the circumferential surface of the rotating rod, and the other end is arranged on the surface of the adsorption plate. The rotating rod can be driven to reset by the spiral spring, the stirring rod contacts the front side of the adsorption plate, and the control tooth block is meshed with the control gear.

[0011] According to the above technical solution, the L-shaped rod is in contact with the T-shaped rod, a linkage rod is fixedly installed on the front side of the L-shaped rod, and the stirring rod is in contact with the arc panel. The arc panel is elastic, and the arc panel can impact the arc panel to cause deformation through its elasticity.

[0012] According to the above technical solution, the auxiliary device includes an elastic telescopic block, a U-shaped rod, a support rod, a support frame, a support hole, a rubber block and a reset spring. The movement of the support frame drives the rubber block to move. The rubber block moves and contacts the circumferential surface of the connecting pipe and provides side support for the connecting pipe. The elastic telescopic block is fixedly installed on the circumferential surface of the air inlet pipe, the U-shaped rod is fixedly installed on the free end of the elastic telescopic block, the support hole is opened on the circumferential surface of the air inlet pipe, the support frame is slidably installed on the inner wall of the support hole, the support rod is fixedly installed on the right side of the support frame, the rubber block is fixedly installed on the inner wall of the support frame, and the reset spring is arranged between the support frame and the stabilizing frame.

[0013] According to the above technical solution, the right side of the support rod is set as an inclined surface, the U-shaped rod moves downward to contact the inclined surface of the support rod and squeeze the support rod, the U-shaped rod contacts the support rod, and the U-shaped rod contacts the linkage rod.

[0014] The present invention provides a two-stage centrifugal magnetic suspension air compressor with near-isothermal compression. It has the following beneficial effects: (1) The two-stage centrifugal magnetic levitation air compressor with near-isothermal compression moves the connecting pipe toward the direction close to the gas tank by manually pushing the connecting pipe toward the direction close to the gas tank and docking with the gas tank. The adjustable connecting pipe can help to reasonably arrange the space between the gas tank and the air compressor body, thereby optimizing the gas transmission line and saving physical space. The buffer plate can only move slowly horizontally, so that the buffer rod and the U-shaped frame can only move slowly. The U-shaped frame can only move slowly to buffer and protect the connecting pipe that is impacted by the airflow. By buffering and protecting the connecting pipe, the airflow impact when the air compressor body is suddenly started or stopped can be effectively reduced, thereby reducing the risk of damage to the connecting pipe and the intake pipe due to the airflow impact.

[0015] (2) The two-stage centrifugal magnetic levitation air compressor with near-isothermal compression drives the stirring rod to rotate by rotating the rotating rod. The rotation of the stirring rod scrapes off the sand and dust adhering to the front side of the adsorption plate. After long-term operation, the surface of the adsorption plate will be covered with sand or dust separated from the air, which increases the air resistance of air entering the air compressor body. The sand and dust are scraped off by the rotation of the stirring rod, reducing the resistance of air intake, thereby improving the air intake efficiency of the air compressor body. The sand and dust adhering to the front side of the adsorption plate are further shaken off by the vibration of the adsorption plate. The sand and dust are shaken off by the vibration of the adsorption plate, further ensuring that more air can smoothly pass through the adsorption plate into the air compressor body and improving the separation efficiency of the adsorption plate.

[0016] (3) The two-stage centrifugal magnetic levitation air compressor with near-isothermal compression drives the rubber block to move by moving the support frame. The rubber block moves and contacts the circumferential surface of the connecting pipe and supports the connecting pipe from the side. The auxiliary support of the rubber block can stabilize the connecting pipe, thereby reducing the external force that the connecting pipe will bear during operation, preventing it from being displaced or deformed, and avoiding leakage or equipment failure caused by loose pipes. The support frame moves in a direction close to the stabilizing frame to drive the rubber block to move. The rubber block moves and breaks away from contact with the connecting pipe and facilitates the movement of the connecting pipe. The rubber block breaks away from contact with the connecting pipe, so that the connecting pipe can move smoothly when docking with the gas storage tank, thereby reducing the wear of the connecting pipe by friction and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the position structure of the air inlet pipe and the connecting pipe of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the structure enlargement of part A; Figure 4 This is a schematic diagram of the internal structure of the air inlet pipe of the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the structure of part B in the middle is enlarged; Figure 6 This is a schematic diagram of the position structure of the elastic telescopic block and the U-shaped rod of the present invention; Figure 7 This is a schematic diagram of the position structure of the buffer plate and the buffer rod of the present invention.

[0018] In the figure: 1. air compressor body; 2. air inlet pipe; 3. connecting pipe; 4. connecting hole; 5. protective groove; 6. stabilizing frame; 7. protective rod; 8. T-shaped rod; 9. U-shaped frame; 10. buffer frame; 11. buffer plate; 12. buffer rod; 131. L-shaped rod; 132. control gear block; 133. rotating rod; 134. control gear; 135. stirring rod; 136. arc panel; 137. linkage rod; 141. elastic telescopic block; 142. U-shaped rod; 143. support rod; 144. support frame; 145. support hole; 146. rubber block; 147. reset spring; 15. buffer hole; 16. adsorption plate. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-Figure 5 One embodiment of the present invention is: a two-stage centrifugal magnetic suspension air compressor with near isothermal compression, comprising an air compressor body 1, and also comprising a buffer device, wherein an air inlet pipe 2 is fixedly installed on the front side of the air compressor body 1, a connecting pipe 3 is slidably installed on the inner wall of the air inlet pipe 2, a connecting hole 4 is opened on the circumferential surface of the air inlet pipe 2, and an adsorption plate 16 is fixedly installed on the inner wall of the air inlet pipe 2, wherein the buffer device comprises a protective groove 5, a stabilizing frame 6, a protective rod 7, a T-shaped rod 8, a U-shaped frame 9, a buffer frame 10, a buffer plate 11, a buffer rod 12 and a buffer hole 15, the protective groove 5 is opened on the circumferential surface of the connecting pipe 3, the stabilizing frame 6 is fixedly installed on the air compressor On the front side of the main body 1, the protective rod 7 slides through the inner and outer walls of the stabilizing frame 6, the T-shaped rod 8 is fixedly installed on the top of the protective rod 7, the U-shaped frame 9 is fixedly installed on the circumferential surface of the connecting pipe 3, the buffer frame 10 is fixedly installed on the front side of the air compressor body 1, the buffer plate 11 is slidably installed on the inner wall of the buffer frame 10, the buffer rod 12 is fixedly installed on the front side of the buffer plate 11, the buffer hole 15 is opened on the front side of the buffer plate 11, and liquid is arranged inside the buffer frame 10. By providing buffering protection for the connecting pipe 3, the airflow impact when the air compressor body 1 is suddenly started or stopped can be effectively reduced, thereby reducing the risk of damage to the connecting pipe 3 and the air inlet pipe 2 due to airflow impact.

[0021] The protection rod 7 is in contact with the inner wall of the protection groove 5. A No. 1 spring is arranged between the T-shaped rod 8 and the stabilizing frame 6. The No. 1 spring can drive the T-shaped rod 8 to reset. The buffer rod 12 is in contact with the inner wall of the U-shaped frame 9. The connecting pipe 3 is adjustable to help reasonably arrange the space between the gas storage tank and the air compressor body 1, thereby optimizing the gas transmission line.

[0022] The buffer plate 11 passes through the inner and outer walls of the buffer frame 10 , the bottom of the T-shaped rod 8 is set as an inclined surface, and a rubber ring is provided between the buffer plate 11 and the buffer frame 10 , which can improve the sealing between the buffer plate 11 and the buffer frame 10 .

[0023] When this embodiment is working: when the air compressor body 1 is docked with the air tank, first manually pull the T-shaped rod 8 upward, and the T-shaped rod 8 moves upward to pull the No. 1 spring. The No. 1 spring is deformed and stored by the pulling of the T-shaped rod 8. At the same time, the T-shaped rod 8 moves upward to drive the protective rod 7 to move upward. The protective rod 7 moves upward to break away from the contact with the protective groove 5 and release the limit on the connecting pipe 3. After the limit of the connecting pipe 3 is released, the connecting pipe 3 is manually pushed to move in the direction close to the air tank. The connecting pipe 3 moves in the direction close to the air tank and docks with the air tank. After the docking of the connecting pipe 3 with the air tank is completed, the T-shaped rod 8 is released so that the T-shaped rod 8 moves downward and resets under the elastic force of the No. 1 spring. The T-shaped rod 8 moves downward and resets, driving the protective rod 7 to move downward. The protective rod 7 moves downward to restore the contact with the protective groove 5 and restore the limit on the connecting pipe 3. After limiting, the air compressor body 1 starts to take in air and operate. When the air compressor body 1 takes in air, the sudden change in air flow rate will produce airflow impact, which will push the connecting pipe 3. The connecting pipe 3 moves horizontally due to the airflow impact. The horizontal movement of the connecting pipe 3 drives the U-shaped frame 9 to move. The horizontal movement of the U-shaped frame 9 drives the buffer rod 12 to move. The horizontal movement of the buffer rod 12 drives the buffer plate 11 to move. The buffer plate 11 moves horizontally to squeeze the liquid inside the buffer frame 10. The liquid inside the buffer frame 10 is squeezed by the buffer plate 11 and can only move slowly through the buffer hole 15. The liquid inside the buffer frame 10 can only move slowly through the buffer hole 15, so that the buffer plate 11 can only move slowly horizontally. The buffer plate 11 can only move slowly horizontally, so that the buffer rod 12 and the U-shaped frame 9 can only move slowly. The U-shaped frame 9 can only move slowly to buffer and protect the connecting pipe 3 that is impacted by the airflow.

[0024] See also Figure 1-Figure 7 On the basis of the above embodiment, in another embodiment of the present invention, an adsorption device for improving air purity is arranged inside the connecting pipe 3, and an auxiliary device is arranged on the surface of the air inlet pipe 2, the adsorption device comprises an L-shaped rod 131, a control tooth block 132, a rotating rod 133, a control gear 134, a stirring rod 135 and an arc panel 136, the L-shaped rod 131 slides through the inner and outer walls of the air inlet pipe 2, the control tooth block 132 is fixedly installed on the left side of the L-shaped rod 131, the rotating rod 133 rotates and penetrates the front and rear walls of the adsorption plate 16, the control gear 134 is fixedly installed on the circumferential surface of the rotating rod 133, the stirring rod 135 is fixedly installed on the circumferential surface of the rotating rod 133, and the arc panel 136 is fixedly installed on the front side of the adsorption plate 16, and the sand and dust are scraped off by the rotation of the stirring rod 135, thereby reducing the resistance of the intake air, thereby improving the intake efficiency of the air compressor body 1.

[0025] A spiral spring is arranged between the rotating rod 133 and the adsorption plate 16. One end of the spiral spring is arranged on the circumferential surface of the rotating rod 133, and the other end is arranged on the surface of the adsorption plate 16. The spiral spring can drive the rotating rod 133 to reset, the stirring rod 135 contacts the front side of the adsorption plate 16, and the control tooth block 132 is meshed with the control gear 134.

[0026] The L-shaped rod 131 is in contact with the T-shaped rod 8, and a linkage rod 137 is fixedly installed on the front side of the L-shaped rod 131. The stirring rod 135 is in contact with the arc panel 136. The arc panel 136 is elastic. The arc panel 136 has elasticity and can impact the arc panel 136 to cause deformation. The sand and dust are shaken off by the vibration of the adsorption plate 16, which can improve the separation efficiency of the adsorption plate 16.

[0027] The auxiliary device includes an elastic telescopic block 141, a U-shaped rod 142, a support rod 143, a support frame 144, a support hole 145, a rubber block 146 and a reset spring 147. The elastic telescopic block 141 is fixedly installed on the circumferential surface of the air inlet pipe 2, the U-shaped rod 142 is fixedly installed on the free end of the elastic telescopic block 141, the support hole 145 is opened on the circumferential surface of the air inlet pipe 2, the support frame 144 is slidably installed on the inner wall of the support hole 145, the support rod 143 is fixedly installed on the right side of the support frame 144, the rubber block 146 is fixedly installed on the inner wall of the support frame 144, and the reset spring 147 is arranged between the support frame 144 and the stabilizing frame 6. Through the auxiliary support of the rubber block 146, it can stabilize the connecting pipe 3, thereby reducing the external force that the connecting pipe 3 will bear during work and preventing it from displacement or deformation.

[0028] The right side of the support rod 143 is set as an inclined surface, the U-shaped rod 142 moves downward to contact the inclined surface of the support rod 143 and squeeze the support rod 143, the U-shaped rod 142 contacts the support rod 143, and the U-shaped rod 142 contacts the linkage rod 137.

[0029] When the present embodiment is working, the T-shaped rod 8 moves upward to contact the L-shaped rod 131 and squeeze the L-shaped rod 131. The L-shaped rod 131 is squeezed and moved upward by the T-shaped rod 8. The L-shaped rod 131 moves upward to drive the control tooth block 132 to move upward. The control tooth block 132 moves upward to squeeze the control gear 134. The control gear 134 is squeezed by the control tooth block 132 to rotate clockwise. The rotation of the control gear 134 drives the rotating rod 133 to rotate. The rotating rod 133 rotates to squeeze the volute spring. The volute spring is squeezed by the rotating rod 133 to produce deformation and accumulate force. At the same time, the rotation of the rotating rod 133 drives the stirring rod 135 to rotate. The stirring rod 135 rotates to scrape off the sand and dust adhered to the front side of the adsorption plate 16. When the T-shaped rod 8 moves downward under the elastic force of the first spring, During manual reset, the T-shaped rod 8 moves downward and disengages from the contact with the L-shaped rod 131. After the L-shaped rod 131 disengages from the contact with the T-shaped rod 8, the rotating rod 133 rotates counterclockwise and resets under the elastic force of the scroll spring. The rotating rod 133 rotates and resets to drive the control gear 134 to rotate. The control gear 134 rotates and resets to squeeze the control tooth block 132. The control tooth block 132 is squeezed by the control gear 134 and moves downward. The control tooth block 132 moves downward and drives the L-shaped rod 131 to move downward and reset. At the same time, the rotating rod 133 rotates and resets to drive the stirring rod 135 to rotate and reset. The stirring rod 135 rotates and resets to hit the arc panel 136 to generate vibration. The arc panel 136 generates vibration and drives the adsorption plate 16 to resonate together. The adsorption plate 16 vibrates and further shakes off the sand and dust adhered to the front side of itself.

[0030] The L-shaped rod 131 moves downward to reset and drives the linkage rod 137 to move downward. The linkage rod 137 moves downward and contacts with the U-shaped rod 142 and squeezes the U-shaped rod 142. The U-shaped rod 142 moves downward under the squeezing of the linkage rod 137. The U-shaped rod 142 moves downward and contacts with the inclined surface of the support rod 143 and squeezes the support rod 143. The support rod 143 moves in the direction close to the air inlet pipe 2 under the squeezing of the U-shaped rod 142. The support rod 143 moves in the direction close to the air inlet pipe 2 and drives the support frame 144 to move. The support frame 144 moves to pull the reset spring 147. The reset spring 147 is pulled by the support frame 144 to produce deformation and accumulate force. At the same time, the support frame 144 moves and drives the rubber block 146 to move. The rubber block 146 moves to contact the circumferential surface of the connecting pipe 3 and squeezes the connecting pipe 3 The side support is performed, and when the L-shaped rod 131 moves upward to reset and drives the linkage rod 137 to move upward to reset, the L-shaped rod 131 moves upward to break away from the contact with the U-shaped rod 142. After the U-shaped rod 142 breaks away from the contact with the L-shaped rod 131, the free end of the elastic telescopic block 141 moves upward under the action of its own elastic force, and the elastic telescopic block 141 moves upward to drive the U-shaped rod 142 to move upward. The U-shaped rod 142 moves upward to break away from the contact with the support rod 143. After the support rod 143 breaks away from the contact with the U-shaped rod 142, the support frame 144 moves toward the direction close to the stabilizing frame 6 under the elastic force of the reset spring 147. The support frame 144 moves toward the direction close to the stabilizing frame 6 and drives the rubber block 146 to move. The rubber block 146 moves away from the contact with the connecting pipe 3 and facilitates the movement of the connecting pipe 3.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A two-stage centrifugal magnetic suspension air compressor with near-isothermal compression, comprising an air compressor body (1), characterized in that: Also includes a buffer device; An air inlet pipe (2) is fixedly mounted on the front side of the air compressor body (1), a connecting pipe (3) is slidably mounted on the inner wall of the air inlet pipe (2), a connecting hole (4) is provided on the circumferential surface of the air inlet pipe (2), and an adsorption plate (16) is fixedly mounted on the inner wall of the air inlet pipe (2); The buffer device comprises a protective groove (5), a stabilizing frame (6), a protective rod (7), a T-shaped rod (8), a U-shaped frame (9), a buffer frame (10), a buffer plate (11), a buffer rod (12) and a buffer hole (15), wherein the protective groove (5) is formed on the circumferential surface of the connecting pipe (3), the stabilizing frame (6) is fixedly mounted on the front side of the air compressor body (1), the protective rod (7) slides through the inner and outer walls of the stabilizing frame (6), the T-shaped rod (8) is fixedly mounted on the top of the protective rod (7), the U-shaped frame (9) is fixedly mounted on the circumferential surface of the connecting pipe (3), the buffer frame (10) is fixedly mounted on the front side of the air compressor body (1), the buffer plate (11) is slidably mounted on the inner wall of the buffer frame (10), the buffer rod (12) is fixedly mounted on the front side of the buffer plate (11), the buffer hole (15) is formed on the front side of the buffer plate (11), and liquid is arranged inside the buffer frame (10); Wherein, an adsorption device for improving air purity is arranged inside the connecting pipe (3), and an auxiliary device is arranged on the surface of the air inlet pipe (2).

2. The two-stage centrifugal magnetic suspension air compressor with near isothermal compression according to claim 1 is characterized in that: The protection rod (7) contacts the inner wall of the protection groove (5), a No. 1 spring is provided between the T-shaped rod (8) and the stabilizing frame (6), and the buffer rod (12) contacts the inner wall of the U-shaped frame (9).

3. The two-stage centrifugal magnetic suspension air compressor with near isothermal compression according to claim 2 is characterized in that: The buffer plate (11) penetrates the inner and outer walls of the buffer frame (10); the bottom of the T-shaped rod (8) is arranged as an inclined surface; and a rubber ring is arranged between the buffer plate (11) and the buffer frame (10).

4. The two-stage centrifugal magnetic suspension air compressor with near isothermal compression according to claim 3 is characterized in that: The adsorption device comprises an L-shaped rod (131), a control tooth block (132), a rotating rod (133), a control gear (134), a stirring rod (135) and an arc panel (136); the L-shaped rod (131) slides through the inner and outer walls of the air inlet pipe (2); the control tooth block (132) is fixedly mounted on the left side of the L-shaped rod (131); the rotating rod (133) rotates through the front and rear walls of the adsorption plate (16); the control gear (134) is fixedly mounted on the circumferential surface of the rotating rod (133); the stirring rod (135) is fixedly mounted on the circumferential surface of the rotating rod (133); and the arc panel (136) is fixedly mounted on the front side of the adsorption plate (16).

5. The two-stage centrifugal magnetic suspension air compressor with near isothermal compression according to claim 4 is characterized in that: A spiral spring is provided between the rotating rod (133) and the adsorption plate (16); the stirring rod (135) contacts the front side of the adsorption plate (16); and the control tooth block (132) meshes with the control gear (134).

6. The two-stage centrifugal magnetic suspension air compressor with near isothermal compression according to claim 5 is characterized in that: The L-shaped rod (131) contacts the T-shaped rod (8); a linkage rod (137) is fixedly mounted on the front side of the L-shaped rod (131); the stirring rod (135) contacts the arc panel (136); and the arc panel (136) is elastic.

7. The two-stage centrifugal magnetic suspension air compressor with near isothermal compression according to claim 6 is characterized in that: The auxiliary device comprises an elastic telescopic block (141), a U-shaped rod (142), a support rod (143), a support frame (144), a support hole (145), a rubber block (146) and a reset spring (147); the elastic telescopic block (141) is fixedly mounted on the circumferential surface of the air inlet pipe (2); the U-shaped rod (142) is fixedly mounted on the free end of the elastic telescopic block (141); the support hole (145) is provided on the circumferential surface of the air inlet pipe (2); the support frame (144) is slidably mounted on the inner wall of the support hole (145); the support rod (143) is fixedly mounted on the right side of the support frame (144); the rubber block (146) is fixedly mounted on the inner wall of the support frame (144); and the reset spring (147) is arranged between the support frame (144) and the stabilizing frame (6).

8. The two-stage centrifugal magnetic suspension air compressor with near isothermal compression according to claim 7 is characterized in that: The right side of the support rod (143) is arranged as an inclined surface, the U-shaped rod (142) contacts the support rod (143), and the U-shaped rod (142) contacts the linkage rod (137).

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