Interstage magnetic levitation flow transport system and method for uranium isotope separation cascade systems

Abstract

This application belongs to the field of uranium isotope separation technology, and relates to an interstage magnetic levitation flow transport system and method for uranium isotope separation cascade systems. The device is connected as follows: the section feed line is connected to the magnetic levitation compressor, and the rear end of the magnetic levitation compressor is connected to the unit feed line; after the magnetic levitation compressor starts, the section feed pressure decreases, and the unit feed pressure increases, thereby realizing interstage pressurization and transmission in the uranium isotope separation cascade system. This application, by using a magnetic levitation compressor, eliminates the need for lubrication in traditional equipment, resulting in low energy consumption during operation and eliminating the need for cooling water, thus reducing operating and maintenance costs. Simultaneously, the application of the magnetic levitation compressor reduces noise from the pressurization equipment, improves the production environment, and further protects workers' occupational health.

Description

Technical Field

[0001] This application belongs to the field of uranium isotope separation technology, and relates to an interstage magnetic levitation flow transport system and method for uranium isotope separation cascade systems. Background Technology

[0002] Currently, the commonly used interstage fine material pressurization and transmission equipment in the cascade system of uranium isotope separation plants is the supplementary pressurizer. Due to the different types of supplementary pressurizers, the bearings of the supplementary pressurizer need to be lubricated and maintained at different intervals. When the oil in the lubricator decreases to the specified value, it needs to be replaced, resulting in high operating and maintenance costs.

[0003] In recent years, centrifugal magnetic levitation compressors developed based on magnetic levitation technology have begun to be applied in the petrochemical, power, and air conditioning and refrigeration industries. These compressors use magnetic levitation bearings, keeping the rotor in a suspended state during operation. This prevents contact between the rotor and the base during rotation, avoiding mechanical friction and resulting in advantages such as low mechanical wear, low noise, long lifespan, no need for lubrication, and no oil pollution. Currently, uranium isotope separation plants both domestically and internationally have not applied magnetic levitation technology in cascade systems, highlighting the urgent need to fill this technological gap through its application. Summary of the Invention

[0004] The purpose of this application is to design an interstage magnetic levitation flow transport system and method for uranium isotope separation cascade systems, reduce the operation and maintenance costs of traditional pressurizers, reduce the risk of pressurizer failure, and improve the intrinsic safety of uranium isotope separation production systems.

[0005] Technical solution to achieve the purpose of this application: This application provides an interstage magnetic levitation flow transport system for a uranium isotope separation cascade system, including: Sectional refined material pipeline; The first section of the refined material pipeline valve and the second section of the refined material pipeline valve are installed on the refined material pipeline of the aforementioned section; Sectional material pipeline pressure gauges installed on the section material pipeline; The compressor front hand valve is connected to the refined material pipeline in the aforementioned section; The inlet of the magnetically levitated compressor is connected to the front hand valve of the compressor. A compressor inlet pressure gauge is installed on the inlet side of the magnetic levitation compressor; The unit's feedstock pipeline is connected to the outlet of the magnetic levitation compressor via an electric valve and a manual valve, the manual valve being connected to the feedstock pipeline. And the unit's feed line pressure gauge installed on the feed line of the unit.

[0006] Optionally, the valves of the first section of the refined material pipeline and the valves of the second section of the refined material pipeline are respectively installed at the inlet of the corresponding section of the refined material pipeline to control the pipeline connection status before the refined material of the section enters the magnetic levitation compressor. The section of the refined material pipeline can have multiple inlets.

[0007] Optional, also includes: The first unloading system manual valve and the second unloading system manual valve are connected to the outlet side pipeline of the magnetic levitation compressor, and the first unloading system manual valve and the second unloading system manual valve are connected to the unloading system pipeline; The first unloading system manual valve and the second unloading system manual valve are installed on the unloading branch line so that the system is connected to the unit's fine material pipeline under normal operating conditions and to the unloading system pipeline under unloading conditions.

[0008] Optional, also includes: A light impurity protection sensor is installed on the outlet side of the magnetic levitation compressor; The light impurity protection sensor is used to monitor the content of light impurities in the concentrate.

[0009] Optionally, the magnetic levitation compressor can adjust the pressure ratio and conveying flow rate of the refined material by adjusting the operating speed.

[0010] Optionally, the magnetic levitation compressor is connected to a control cabinet and an industrial control computer box. After the control cabinet is powered on, the industrial control computer box automatically starts to realize the levitation control of the compressor main shaft.

[0011] Optionally, the system has a remote DCS control mode and a local control mode; in the DCS control mode, the control cabinet switch is in the "on" state, and the magnetic levitation compressor can be started and stopped by the switch in the duty room; in the local control mode, the magnetic levitation compressor will not be controlled by the DCS in the duty room, and the magnetic levitation compressor will be controlled locally.

[0012] Optionally, an electric valve is installed on the outlet pipe of the magnetic levitation compressor. The electric valve and the magnetic levitation compressor are interlocked. When the electric valve is in the closed state or intermediate state, the magnetic levitation compressor automatically stops running to prevent the magnetic levitation compressor from overloading.

[0013] Optionally, the compressor spindle is powered by a UPS power cabinet to maintain the safety protection of the magnetic levitation compressor in the event of a power outage.

[0014] A flow transport method for interstage magnetic levitation support in a uranium isotope separation cascade system includes the following steps: Step 1: Disconnect the unloading system pipeline: Under normal operating conditions, the manual valve of the first unloading system is kept open and the manual valve of the second unloading system is kept closed, so as to isolate the unloading system pipeline from the main conveying passage and put the system in the interstage pressurization and transmission preparation state. Step 2: Ensure the system piping is unobstructed. Open the valves of the first section of the feed pipeline, the valve of the second section of the feed pipeline, the manual valve in front of the compressor, the electric valve in front of the feed pipeline of the unit, and the manual valve in front of the feed pipeline of the unit, so that the feed pipeline of the section is connected to the feed pipeline of the unit through the magnetic levitation compressor; Step 3, Pre-start checks of the magnetic levitation compressor: Check whether the system equipment operating status and parameter status are normal; The pressure at the inlet side of the magnetic levitation compressor is detected by the pressure gauge before the compressor, and the pressure at the outlet side is detected by the pressure gauge in the unit's feed pipeline. The light impurity protection sensor is functioning normally. Check the status of the magnetic levitation compressor control cabinet to confirm that the power supply is normal, the control cable and inverter cable are properly connected, and the frequency setting is correct. Step 4: Start the magnetic levitation compressor: Switch the levitation switch of the magnetic levitation compressor from the off state to the on state on the control cabinet to make the compressor main shaft enter the levitation state; Then switch the start switch on the control cabinet to the on state, and send a start command through the DCS control system to start the magnetic levitation compressor. Step 5, Interstage pressurization and operational adjustment: The material flows from the section of the refined material pipeline through the valves of the first section of the refined material pipeline, the valve of the second section of the refined material pipeline, and the front hand valve of the compressor into the magnetic levitation compressor; After the material is pressurized by the magnetic levitation compressor, it is transported to the unit's fine material pipeline via the electric valve and the manual valve before the fine material pipeline. During operation, the power, current, frequency, inlet pressure, outlet pressure, and light impurity content of the magnetic levitation compressor are monitored, and the operating frequency of the magnetic levitation compressor is adjusted as needed. Step 6, Shut down the machine: When a shutdown is required, a shutdown command is issued through the control cabinet or DCS control system to gradually reduce the operating frequency of the magnetic levitation compressor until it reaches zero, and then stop the operation of the magnetic levitation compressor.

[0015] Optionally, when the entire unit needs to be unloaded through a section, the compressor front hand valve is closed and the second unloading system hand valve is opened, allowing the material to enter the unloading system through the unloading system pipeline.

[0016] Optionally, in step five, the pressure of the section feed pipeline decreases during operation, while the pressure of the unit feed pipeline increases, to indicate that the magnetic levitation compressor is in a normal pressurization and transmission state.

[0017] The beneficial technical effects of this application are as follows: (1) The magnetic levitation compressor adopts magnetic levitation bearing technology, which eliminates the lubrication link of the original press equipment. It has low energy consumption during operation and does not require cooling water, thus reducing operation and maintenance costs.

[0018] (2) The magnetic levitation compressor is used for interstage pressurization in uranium isotope separation plants, which reduces the noise of pressurization equipment, improves the production environment, and further protects the occupational health of workers.

[0019] (3) The application of magnetic levitation compressors reduces high-risk operations in the production process, improves the inherent safety of uranium isotope separation production systems, and is of great significance for realizing the localization of supporting process equipment for uranium isotope separation plant cascade systems and enhancing the core competitiveness of the industry. Attached Figure Description

[0020] Figure 1 A schematic diagram of the structure of an interstage magnetic levitation flow transport system for a uranium isotope separation cascade system; Figure 2 This is a schematic diagram of the DCS control system interface for an interstage magnetic levitation flow transport system in a uranium isotope separation cascade system.

[0021] In the picture: 1-First section feedstock pipeline valve, 2-Second section feedstock pipeline valve, 3-Section feedstock pipeline pressure gauge, 4-Compressor front hand valve, 5-Compressor front pressure gauge, 6-Magnetic levitation compressor, 7-Light impurity protection sensor, 8-Unit feedstock pipeline front solenoid valve, 9-Unit feedstock pipeline front hand valve, 10-First unloading system hand valve, 11-Second unloading system hand valve, 12-Unit feedstock pipeline pressure gauge, 13-Unit feedstock pipeline, 14-Section feedstock pipeline, 15-Unloading system pipeline. Detailed Implementation

[0022] To enable those skilled in the art to better understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only a part of the embodiments of this application, and not all of them. Based on the embodiments described in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] See Figure 1The figure is a schematic diagram of a flow transport system for interstage magnetic levitation support of a uranium isotope separation cascade system provided in an embodiment of this application.

[0024] This application provides a flow transport system for interstage magnetic levitation support in a uranium isotope separation cascade system, comprising: The section of refined material pipeline 14 is equipped with a first section refined material pipeline valve 1, a second section refined material pipeline valve 2, and a section refined material pipeline pressure gauge 3; Sectional feed pipeline 14 is connected to compressor front hand valve 4, and then connected to magnetic levitation compressor 6; The compressor front pressure gauge 5 is installed on the inlet side of the magnetic levitation compressor 6 to monitor the inlet side pressure of the magnetic levitation compressor 6; The outlet of the magnetic levitation compressor 6 is connected in sequence to the electric valve 8 and the manual valve 9 before the unit's feed pipeline, and then connected to the unit's feed pipeline 13. A pressure gauge 12 is installed on the feed pipeline 13 of the unit to monitor the pressure of the feed pipeline 13 of the unit.

[0025] Optionally, the first section material pipeline valve 1 and the second section material pipeline valve 2 are respectively installed at the inlet of the corresponding section material pipeline 14 to control the pipeline connection status before the section material enters the magnetic levitation compressor 6; The section of the refined material pipeline 14 can have multiple inlets.

[0026] Optional, also includes: The first unloading system manual valve 10 and the second unloading system manual valve 11 are connected to the outlet side pipeline of the magnetic levitation compressor 6, and the first unloading system manual valve 10 and the second unloading system manual valve 11 are connected to the unloading system pipeline 15. The first unloading system hand valve 10 and the second unloading system hand valve 11 are installed on the unloading branch so that the system is connected to the unit's fine material pipeline 13 under normal operating conditions and to the unloading system pipeline 15 under unloading conditions.

[0027] Optional, also includes: Light impurity protection sensor 7 is installed on the outlet side of the magnetic levitation compressor 6; The light impurity protection sensor 7 is used to monitor the content of light impurities in the concentrate.

[0028] Optionally, the magnetic levitation compressor 6 can adjust the pressure ratio and conveying flow rate of the refined material by adjusting the operating speed.

[0029] Optionally, the magnetic levitation compressor 6 is connected to a control cabinet and an industrial control computer box. After the control cabinet is powered on, the industrial control computer box automatically starts to realize the levitation control of the compressor main shaft.

[0030] Optionally, the system has a remote DCS control mode and a local control mode; in the DCS control mode, the control cabinet switch is in the "on" state, and the magnetic levitation compressor 6 can be started and stopped by the switch in the duty room; in the local control mode, the magnetic levitation compressor 6 will not be controlled by the DCS in the duty room, and the magnetic levitation compressor 6 will be controlled locally.

[0031] Optionally, an electric valve is installed on the outlet pipe of the magnetic levitation compressor 6. The electric valve and the magnetic levitation compressor 6 are interlocked. When the electric valve is in the closed state or intermediate state, the magnetic levitation compressor 6 automatically stops running to prevent the magnetic levitation compressor 6 from overloading.

[0032] Optionally, the compressor spindle is powered by a UPS power cabinet to maintain the safety protection of the magnetic levitation compressor 6 in the event of a power outage.

[0033] A flow transport method for interstage magnetic levitation support in a uranium isotope separation cascade system, characterized by comprising the following steps: Step 1: Disconnect the unloading system pipeline: Under normal operating conditions, the first unloading system manual valve 10 is in the open state and the second unloading system manual valve 11 is in the closed state, so as to isolate the unloading system pipeline 15 from the main conveying passage and put the system in the interstage pressurization transmission preparation state. Step 2: Ensure the system piping is unobstructed. Open valve 1 of the first section of the feed pipeline, valve 2 of the second section of the feed pipeline, manual valve 4 before the compressor, electric valve 8 before the unit's feed pipeline, and manual valve 9 before the unit's feed pipeline, so that the feed pipeline 14 of the section is connected to the feed pipeline 13 of the unit via the magnetic levitation compressor 6; The circuit connection during startup is as follows: The material flows through valve 1 of the first section of the refined material pipeline, valve 2 of the second section of the refined material pipeline, and manual valve 4 before the compressor. After passing through the magnetic levitation compressor 6, it flows out from the electric valve 8 before the refined material pipeline of the unit and the manual valve 9 before the refined material pipeline of the unit to reach the refined material main pipeline.

[0034] Step 3, Pre-start checks of the magnetic levitation compressor: Check whether the system equipment operating status and parameter status are normal; The pressure at the inlet side of the magnetic levitation compressor 6 is detected by the pressure gauge 5 before the compressor, and the pressure at the outlet side is detected by the pressure gauge 12 of the unit's feed pipeline. The light impurity protection sensor 7 was checked and found to be functioning normally. Check the status of the magnetic levitation compressor control cabinet 6 to confirm that the power supply is normal, the control cable and inverter cable are properly connected and the frequency setting is correct. Step 4: Start the magnetic levitation compressor: Switch the levitation switch of the magnetic levitation compressor 6 from the off state to the on state on the control cabinet to make the compressor main shaft enter the levitation state; Then switch the start switch on the control cabinet to the on state, and send a start command through the DCS control system to start the magnetic levitation compressor 6. Step 5, Interstage pressurization and operational adjustment: The material flows from the section material pipeline 14 through the first section material pipeline valve 1, the second section material pipeline valve 2 and the compressor front hand valve 4 into the magnetic levitation compressor 6; After the material is pressurized by the magnetic levitation compressor 6, the material is transported to the unit's fine material pipeline 13 via the solenoid valve 8 and the manual valve 9 before the unit's fine material pipeline. During operation, the power, current, frequency, inlet pressure, outlet pressure, and light impurity content of the magnetic levitation compressor 6 are monitored, and the operating frequency of the magnetic levitation compressor 6 is adjusted as needed. Step 6, Shut down the machine: When a shutdown is required, a shutdown command is issued through the control cabinet or DCS control system to gradually reduce the operating frequency of the magnetic levitation compressor 6 until it reaches zero, and then stop the operation of the magnetic levitation compressor 6.

[0035] Optionally, the installation of the magnetic levitation compressor includes the following steps: Step 1: Take the section out of operation and disconnect the process section and the operating system of the magnetic levitation compressor 6 to be installed, that is, close the solenoid valve 8 and the manual valve 9 before the unit's feed pipeline; ensure that the valve channel is qualified, and the qualified standard is that the pressure change △P ≯ 0 Pa / 30min.

[0036] Step 2: After the process area where the magnetic levitation compressor 6 is to be installed passes the vacuum purging test, install the magnetic levitation compressor 6; ensure that the vacuum measurement is qualified, and the qualification standard is: △P≯26.6 Pa / 6h.

[0037] Optionally, when the entire unit needs to be unloaded through a section, close the compressor front hand valve 4 and open the second unloading system hand valve 11 to allow the material to enter the unloading system through the unloading system pipeline 15.

[0038] Optionally, in step five, the pressure of the section feed pipeline 14 decreases during operation, while the pressure of the unit feed pipeline 13 increases, to indicate that the magnetic levitation compressor 6 is in a normal pressurization and transmission state.

[0039] See Figure 2 The figure is a schematic diagram of the DCS control system interface of a flow transport system for interstage magnetic levitation support of a uranium isotope separation cascade system provided in an embodiment of this application.

[0040] The parameters and operation options in the DCS control system interface diagram are explained below: The magnetic levitation compressor's operating status is displayed as follows: green indicates it is running, and red indicates it is stopped.

[0041] Frequency: Displays the current operating frequency of the magnetic levitation compressor 6.

[0042] Current: Displays the current operating current of the magnetic levitation compressor 6.

[0043] Motor / Vortex Temperature: Displays the current motor / vortex temperature of the magnetic levitation compressor 6.

[0044] Start-up: Click the "Start" button with the mouse, and then click "OK" to confirm again. The running status of magnetic levitation compressor 6 will turn green, indicating that magnetic levitation compressor 4 has started.

[0045] Stop: Click the "Stop" button with the mouse, and then click "OK" to confirm again. The running status of the magnetic levitation compressor 6 will turn red, indicating that the magnetic levitation compressor 6 has stopped running.

[0046] S03 Valve Status: The S03 valve is an electric valve on the outlet pipeline of the magnetic levitation compressor 6. Green indicates that the valve is open, and red indicates that it is closed. When the S03 valve is closed or in an intermediate state, the running magnetic levitation compressor 6 will automatically stop running.

[0047] The present application has been described in detail above with reference to the accompanying drawings and embodiments. However, the present application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present application. All content not described in detail in this application can be derived from existing technology.

Claims

1. A magnetic levitation flow transport system for interstage uranium isotope separation cascade systems, characterized in that, include: Sectional refined material pipeline (14); The first section refined material pipeline valve (1) and the second section refined material pipeline valve (2) are installed on the section refined material pipeline (14); Sectional material pipeline pressure gauge (3) is installed on the section material pipeline (14); The compressor front hand valve (4) is connected to the refined material pipeline (14) in the section. The magnetically levitated compressor (6) whose inlet is connected to the compressor front hand valve (4); The compressor front pressure gauge (5) is installed on the inlet side of the magnetic levitation compressor (6); The unit feed line front electric valve (8) and the unit feed line front manual valve (9) are connected to the outlet of the magnetic levitation compressor (6), and the unit feed line front manual valve (9) is connected to the unit feed line (13); And the unit feed line pressure gauge (12) installed on the unit feed line (13).

2. The uranium isotope separation cascade system interstage magnetic levitation flow transport system according to claim 1, characterized in that, The first section material pipeline valve (1) and the second section material pipeline valve (2) are respectively set at the inlet of the corresponding section material pipeline (14) to control the pipeline connection status before the section material enters the magnetic levitation compressor (6); The inlet of the section of the fine material pipeline (14) is one or more.

3. The uranium isotope separation cascade system interstage magnetic levitation flow transport system according to claim 1, characterized in that, Also includes: The first unloading system hand valve (10) and the second unloading system hand valve (11) are connected to the outlet side pipeline of the magnetic levitation compressor (6), and the first unloading system hand valve (10) and the second unloading system hand valve (11) are connected to the unloading system pipeline (15); The first unloading system hand valve (10) and the second unloading system hand valve (11) are installed on the unloading branch so that the system is connected to the unit's fine material pipeline (13) under normal operating conditions and to the unloading system pipeline (15) under unloading conditions.

4. The interstage magnetic levitation flow transport system for uranium isotope separation cascade system according to claim 1, characterized in that, Also includes: Light impurity protection sensor (7) is installed on the outlet side of the magnetic levitation compressor (6); The light impurity protection sensor (7) is used to monitor the content of light impurities in the concentrate.

5. The uranium isotope separation cascade system interstage magnetic levitation flow transport system according to claim 1, characterized in that, The magnetic levitation compressor (6) adjusts the pressure ratio and flow rate of the refined material by adjusting the operating speed.

6. The uranium isotope separation cascade system interstage magnetic levitation flow transport system according to claim 1, characterized in that, The magnetic levitation compressor (6) is connected to a control cabinet and an industrial control box. After the control cabinet is powered on, the industrial control box automatically starts to realize the levitation control of the compressor main shaft.

7. The interstage magnetic levitation flow transport system for uranium isotope separation cascade system according to claim 1, characterized in that, The system has a remote DCS control mode and a local control mode. In the DCS control mode, the control cabinet switch is in the "on" state, and the magnetic levitation compressor (6) can be started and stopped by the switch in the duty room. In the local control mode, the magnetic levitation compressor (6) will not be controlled by the DCS in the duty room, and the magnetic levitation compressor (6) will be controlled locally.

8. The interstage magnetic levitation flow transport system for uranium isotope separation cascade system according to claim 1, characterized in that, An electric valve is installed on the outlet pipe of the magnetic levitation compressor (6). The electric valve and the magnetic levitation compressor (6) are interlocked. When the electric valve is in the closed state or intermediate state, the magnetic levitation compressor (6) automatically stops running to prevent the magnetic levitation compressor (6) from overloading.

9. The interstage magnetic levitation flow transport system for uranium isotope separation cascade system according to claim 1, characterized in that, The compressor spindle is powered by a UPS power cabinet to maintain the safety protection of the magnetic levitation compressor (6) in the event of a power outage.

10. A method for interstage magnetic levitation flow transport in a uranium isotope separation cascade system, characterized in that, Includes the following steps: Step 1: Disconnect the unloading system pipeline: Under normal operating conditions, the first unloading system manual valve (10) is in the open state and the second unloading system manual valve (11) is in the closed state, so as to isolate the unloading system pipeline (15) from the main conveying passage and put the system in the interstage pressurization transmission preparation state. Step 2: Ensure the system piping is unobstructed. Open the first section refined material pipeline valve (1), the second section refined material pipeline valve (2), the compressor front hand valve (4), the unit refined material pipeline front electric valve (8) and the unit refined material pipeline front hand valve (9) so that the section refined material pipeline (14) is connected to the unit refined material pipeline (13) through the magnetic levitation compressor (6); Step 3, Pre-start checks of the magnetic levitation compressor: Check whether the system equipment operating status and parameter status are normal; The pressure at the inlet of the magnetic levitation compressor (6) is detected by the pressure gauge (5) before the compressor, and the pressure at the outlet is detected by the pressure gauge (12) of the feed pipeline of the unit. The light impurity protection sensor (7) was checked and found to be in normal condition; Check the status of the magnetic levitation compressor (6) control cabinet to confirm that the power supply is normal, the control cable and inverter cable are properly connected and the frequency setting is correct; Step 4: Start the magnetic levitation compressor: Switch the levitation switch of the magnetic levitation compressor (6) from the closed state to the open state on the control cabinet so that the compressor main shaft enters the levitation state; Then switch the start switch on the control cabinet to the open state, and send a start command through the DCS control system to start the magnetic levitation compressor (6); Step 5, Interstage pressurization and operational adjustment: The material flows from the section material pipeline (14) through the first section material pipeline valve (1), the second section material pipeline valve (2) and the compressor front hand valve (4) into the magnetic levitation compressor (6); After the material is pressurized by the magnetic levitation compressor (6), the material is transported to the unit's fine material pipeline (13) via the electric valve (8) in front of the unit's fine material pipeline and the manual valve (9) in front of the unit's fine material pipeline. During operation, the power, current, frequency, inlet pressure, outlet pressure and light impurity content of the magnetic levitation compressor (6) are monitored, and the operating frequency of the magnetic levitation compressor (6) is adjusted as needed. Step 6, Shut down the machine: When a shutdown is required, a shutdown command is issued through the control cabinet or DCS control system to gradually reduce the operating frequency of the magnetic levitation compressor (6) until it reaches zero, and then stop the operation of the magnetic levitation compressor (6).

11. The method for interstage magnetic levitation flow transport in a uranium isotope separation cascade system according to claim 10, characterized in that, When the entire unit needs to be unloaded through a section, close the compressor front hand valve (4) and open the second unloading system hand valve (11) so that the material enters the unloading system through the unloading system pipeline (15).

12. The method for interstage magnetic levitation flow transport in a uranium isotope separation cascade system according to claim 10, characterized in that, In step five, the pressure of the section feed pipeline (14) decreases during operation, while the pressure of the unit feed pipeline (13) increases, indicating that the magnetic levitation compressor (6) is in a normal pressurization transmission state.

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