Vacuum chamber crevasse jet experiment system in fusion device

Abstract

The invention relates to the technical field of fusion devices, in particular to a vacuum chamber crevasse jet experiment system in a fusion device. According to the technical scheme, the device comprises a circulating water system, a jet water system, a vacuum tank system and a control and data acquisition system. By simulating normal circulating water and the water flow state under the internal crevasse condition, various experimental conditions are provided for studying the heat and mass transfer characteristics of cooling water in internal vacuum, stable cooling water jet flow is generated through cooperation of the pneumatic corrugated pipe sealing valve and the high-pressure gas tank, related phenomena under different jet flow parameters can be studied conveniently, and the experimental device is suitable for large-scale popularization and application. According to the invention, the jet flow flash evaporation characteristic research under the vacuum water loss accident in the fusion device is carried out through the circulating water system, the jet flow water system, the vacuum tank body system and the control and data acquisition system, and the accuracy of a numerical simulation analysis result is verified through the system. And a feasibility test of a cooling water inner vacuum leakage suppression scheme can be carried out.

Description

Technical Field

[0001] The invention relates to the technical field of fusion devices, and in particular to a vacuum chamber rupture jet experimental system in a fusion device. Background Art

[0002] Nuclear fusion reaction is a potential way to generate clean energy. It releases huge energy by combining light atomic nuclei into heavier atomic nuclei under high temperature and high density conditions. This energy generation method has the advantages of wide fuel sources, no greenhouse gas and long-lived radioactive waste, etc. It is considered to be one of the ideal ways to solve future energy needs. During the high-parameter long-pulse experiment of the fusion device, the interaction between plasma and the inner wall of the device will generate a large amount of heat, causing the temperature of the components to rise sharply, causing the components to melt and crack. Once the internal components melt and crack, it will cause the internal vacuum to lose water and cause the vacuum pressure to rise, seriously affecting the operation safety of the device. The main influencing factor of the vacuum pressure change is the heat and mass transfer characteristics of the cooling water in the internal vacuum. Exploring effective suppression measures is crucial to ensure the operation safety of the high-parameter plasma of the fusion device. Therefore, we propose a fusion device internal vacuum chamber breach jet experimental system. Summary of the invention

[0003] The purpose of the present invention is to address the problem that the heat and mass transfer characteristics of cooling water in internal vacuum are the main factors affecting the change of vacuum pressure, explore effective suppression measures that are crucial to ensuring the safe operation of high-parameter plasma in fusion devices, and propose a rupture jet experimental system for the vacuum chamber in a fusion device.

[0004] The technical solution of the present invention is: a fusion device vacuum chamber breach jet experimental system, including a circulating water system, a jet water system, a vacuum tank system, a control and data acquisition system;

[0005] The circulating water system is used to provide circulating water, and comprises a centrifugal pump, a simulated internal breach branch and a simulated circulating water branch, wherein the input end of the centrifugal pump is connected to a water tank;

[0006] The jet water system is used to generate cooling water jets, and includes a stainless steel branch pipe and a pneumatic bellows sealing valve connected thereto, wherein one end of the pneumatic bellows sealing valve is connected to a high-pressure gas tank;

[0007] The vacuum tank system is used to create a vacuum environment, and comprises a vacuum tank, wherein the vacuum tank is connected to a vacuum pump;

[0008] The control and data acquisition system is used to collect, monitor and store experimental data in real time, and includes multiple groups of temperature transmitters, pressure transmitters and electromagnetic flow meters installed in the circulating water system, jet water system and vacuum tank system, and also includes a computer for remote control and real-time monitoring.

[0009] Optionally, the output end of the centrifugal pump is fixedly connected to a first check valve, the simulated internal rupture branch is fixedly connected to a first manual regulating valve, and the simulated internal rupture branch is also connected to a first pressure transmitter and a first electromagnetic flowmeter.

[0010] Optionally, a second pressure transmitter, a third pressure transmitter and a second electromagnetic flowmeter are fixedly connected to the simulated circulating water branch, and a second check valve is provided between the second pressure transmitter and the third pressure transmitter.

[0011] Optionally, a second manual regulating valve and a third manual regulating valve are provided on the side of the second electromagnetic flowmeter away from the second pressure transmitter, a pneumatic cut-off valve is provided on one side of the third manual regulating valve, a first high-pressure gas tank is connected to one side of the pneumatic cut-off valve, and a third electromagnetic flowmeter is provided on the side of the pneumatic cut-off valve away from the third manual regulating valve.

[0012] Optionally, the stainless steel pipeline is connected between the second manual regulating valve and the third manual regulating valve, and a fourth electromagnetic flowmeter and a third pressure transmitter are provided on the stainless steel pipeline.

[0013] Optionally, the fourth electromagnetic flowmeter and the third pressure transmitter are both located on the side of the pneumatic bellows sealing valve away from the vacuum tank, the inner diameter of the stainless steel pipe is -mm, and the downstream of the stainless steel pipe is connected to the vacuum tank through a nozzle.

[0014] Optionally, the vacuum tank is connected to a vacuum gauge, a fourth pressure transmitter, and a temperature transmitter, one side of the vacuum tank is connected to a pressure relief tank, and a first manual baffle valve is connected between the vacuum tank and the pressure relief tank.

[0015] Optionally, a collecting tank is connected to one side of the vacuum tank, a second manual baffle valve is connected between the vacuum tank and the collecting tank, and a third manual baffle valve is connected between the vacuum tank and the vacuum pump.

[0016] Optionally, the vacuum tank is provided with a pressure relief port connected to the pressure relief tank, the vacuum tank is provided with a vacuum gauge interface, the vacuum tank body is provided with a vacuum extraction interface, the bottom of the vacuum tank is provided with a drain port, and the vacuum tank is provided with two sets of plexiglass observation windows.

[0017] In summary, the present application includes at least one of the following beneficial technical effects:

[0018] 1. The present invention simulates the water flow state of normal circulating water and internal breach in the fusion device through the circulating water system, and realizes effective regulation and monitoring of water flow pressure and flow through the centrifugal pump and the regulating valves, transmitters and flow meters installed on each branch, providing various experimental conditions for studying the heat and mass transfer characteristics of cooling water in internal vacuum;

[0019] 2. The jet water system in the present invention produces a stable cooling water jet through the cooperation of the pneumatic bellows sealing valve and the high-pressure gas tank, and enters the vacuum tank through the stainless steel pipe and the nozzle, which is convenient for studying the related phenomena under different jet parameters and helps to study the physical mechanism of the vacuum water loss process;

[0020] 3. The vacuum tank system of the present invention is used to create a vacuum environment that meets the experimental requirements, and can monitor the environmental parameters in the vacuum tank in real time in conjunction with a vacuum gauge, a pressure transmitter, a temperature transmitter, etc., and can ensure the safety of the experiment and meet the requirements for material collection and pressure regulation during the experiment in combination with a pressure relief tank, a collection tank and a corresponding baffle valve;

[0021] 4. The present invention studies the characteristics of jet flash evaporation under vacuum dehydration accidents in fusion devices through a circulating water system, a jet water system, a vacuum tank system, and a control and data acquisition system. The accuracy of the numerical simulation analysis results is verified through this system, and the feasibility test of the vacuum leakage suppression scheme in the cooling water can also be carried out. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic structural diagram of a vacuum chamber rupture jet experimental system in a fusion device according to the present invention is provided;

[0023] Figure 2 A schematic structural diagram of the vacuum tank in the present invention is provided;

[0024] Figure 3 A schematic diagram of the front view structure of the vacuum tank in the present invention is given;

[0025] Figure 4 Given Figure 3 Cross-sectional view of the vacuum tank at BB;

[0026] Figure 5 A test bench test result diagram in an embodiment of the present invention is provided;

[0027] Figure 6 A system parameter response diagram in an embodiment of the present invention is given.

[0028] Figure numerals: 1, centrifugal pump; 2, water tank; 3, first check valve; 4, first electromagnetic flowmeter; 5, first pressure transmitter; 6, first manual regulating valve; 7, second electromagnetic flowmeter; 8, second pressure transmitter; 9, third pressure transmitter; 10, second check valve; 11, second manual regulating valve; 12, third manual regulating valve; 13, pneumatic shut-off valve; 14, third electromagnetic flowmeter; 15, first high-pressure gas tank; 16, fourth electromagnetic flowmeter; 17, third pressure transmitter; 18. Second high-pressure gas tank; 19. Pneumatic bellows sealing valve; 20. Vacuum gauge; 21. Fourth pressure transmitter; 22. Temperature transmitter; 23. First manual baffle valve; 24. Pressure relief tank; 25. Vacuum tank; 26. Second manual baffle valve; 27. Collection tank; 28. Vacuum pump; 29. ​​Third manual baffle valve; 30. Control and data acquisition system; 32. Pressure relief port; 32. Vacuum gauge interface; 33. Nozzle; 34. Vacuum extraction interface; 35. Drainage port; 36. Organic glass observation window. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0030] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0031] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0033] It should be noted that the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Example

[0036] like Figures 1 to 4 As shown, a vacuum chamber breach jet experimental system in a fusion device proposed by the present invention includes a circulating water system, a jet water system, a vacuum tank system, and a control and data acquisition system 30. Each system is described in detail below.

[0037] Among them, the circulating water system is used to provide circulating water, including a centrifugal pump 1, a simulated internal breach branch and a simulated circulating water branch. The input end of the centrifugal pump 1 is connected to a water tank 2, the water tank 2 is used to store water, and the output end of the water tank 2 is connected to a pipeline filter (not shown) for removing impurities. The output end of the centrifugal pump 1 is fixedly connected to a first check valve 3, the simulated internal breach branch is fixedly connected to a first manual regulating valve 6, the simulated internal breach branch is also connected to a first pressure transmitter 5 and a first electromagnetic flowmeter 4, the simulated circulating water branch is fixedly connected to a second pressure transmitter 8, a third pressure transmitter 9 and a second electromagnetic flowmeter 7, and a second check valve 10 is provided between the second pressure transmitter 8 and the third pressure transmitter 9;

[0038] A second manual regulating valve 11 and a third manual regulating valve 12 are provided on the side of the second electromagnetic flowmeter 7 away from the second pressure transmitter 8. A pneumatic shut-off valve 13 is provided on one side of the third manual regulating valve 12. The pneumatic shut-off valve 13 is DN40, with a nominal pressure of 4.0 MPa, an allowable working temperature of -20-200°C, connected by a flange, and a driving pressure of 0.5 MPa. A first high-pressure gas tank 15 is connected to one side of the pneumatic shut-off valve 13, and a third electromagnetic flowmeter 14 is provided on the side of the pneumatic shut-off valve 13 away from the third manual regulating valve 12. The circulating water system simulates the water flow state of normal circulating water and internal breach in the fusion device, realizes effective regulation and monitoring of water flow pressure and flow, and provides various experimental conditions for studying the heat and mass transfer characteristics of cooling water in internal vacuum.

[0039] Secondly, the jet water system is used to generate cooling water jets, including a stainless steel branch pipe and a pneumatic bellows sealed valve 19 connected thereto, the nominal pressure of the pneumatic bellows sealed valve 19 is 3.0MPa, the allowable working temperature is 80°C, the opening time is ≤2s, the driving air pressure is 0.8MPa, and a threaded joint is used for connection. One end of the pneumatic bellows sealed valve 19 is connected to a second high-pressure gas tank 18, and a stainless steel pipeline is connected between the second manual regulating valve 11 and the third manual regulating valve 12. A fourth electromagnetic flowmeter 16 and a third pressure transmitter 17 are provided on the stainless steel pipeline;

[0040] In this embodiment, the fourth electromagnetic flowmeter 16 and the third pressure transmitter 17 are both located on the side of the pneumatic bellows sealing valve 19 away from the vacuum tank 25, the inner diameter of the stainless steel pipe is 13-14 mm, the downstream of the stainless steel pipe is connected to the vacuum tank 25 through the nozzle 33, the inner diameter of the stainless steel branch pipe is preferably 14 mm, and the valve dynamic pressure of the pneumatic bellows sealing valve 19 is 0.5 MPa. The jet water system generates a stable cooling water jet, and enters the vacuum tank 25 through the stainless steel pipe and the nozzle 33, which is convenient for studying related phenomena under different jet parameters and helps to study the physical mechanism of vacuum dehydration process.

[0041] In addition, the vacuum tank system is used to create a vacuum environment, including a vacuum tank 25, which is connected to a vacuum pump 28. The vacuum pump 28 has a pumping speed of 25l / s at 50Hz and a limit pressure of 2.0Pa. The vacuum tank 25 is connected to a vacuum gauge 20, a fourth pressure transmitter 21, and a temperature transmitter 22. A pressure relief tank 24 is connected to one side of the vacuum tank 25, a first manual baffle valve 23 is connected between the vacuum tank 25 and the pressure relief tank 24, a collecting tank 27 is connected to one side of the vacuum tank 25, a second manual baffle valve 26 is connected between the vacuum tank 25 and the collecting tank 27, and a third manual baffle valve 29 is connected between the vacuum tank 25 and the vacuum pump 28.

[0042] The vacuum tank 25 is provided with a pressure relief port 32 connected to the pressure relief tank 24, a vacuum gauge interface 32 is provided on the vacuum tank 25, a vacuum extraction interface 34 is provided on the body of the vacuum tank 25, a drain port 35 is provided at the bottom of the vacuum tank 25, and two sets of organic glass observation windows 36 are provided on the vacuum tank 25. The vacuum tank system is used to create a vacuum environment that meets the experimental requirements, and can monitor the environmental parameters in the vacuum tank in real time, which can not only ensure the safety of the experiment, but also meet the requirements of material collection and pressure regulation during the experiment.

[0043] Finally, the control and data acquisition system 30 is used to collect, monitor and store experimental data in real time, including multiple groups of temperature transmitters, pressure transmitters and electromagnetic flow meters installed in the circulating water system, jet water system and vacuum tank system, and also includes a computer for remote control and real-time monitoring. The control core of the computer adopts Siemens S7 series PLC, and the software is preferably Wincc configuration human-machine interface.

[0044] In order to verify the technical effect of the present invention, experiments were conducted on a vacuum chamber breach jet experimental system in a fusion device.

[0045] 1. Preparation before the experiment

[0046] Test bench test: pressure and temperature monitoring of the circulating water system, water flow monitoring of the jet water system, vacuum pressure monitoring of the vacuum tank system, test results such as Figure 5 shown.

[0047] When monitoring the pressure and temperature of the circulating water system, the outlet pressure of centrifugal pump 1 is tested to check centrifugal pump 1 to ensure that it can start and operate normally. The rated head of centrifugal pump 1 is 300 meters and the rated flow rate is 100m 3 / h, test the pump outlet pressure of centrifugal pump 1, and measure the inverter frequency to be 47Hz, and the pump outlet pressure to be 3.0MPa; when monitoring the temperature of the circulating water system, by testing the outlet temperature of centrifugal pump 1, it is measured to be 70℃; at the same time, clean and fill the connected water tank 2, and keep the water level at a suitable height to avoid cavitation of the water pump, and check the pipe filter at the outlet of water tank 2 to ensure that it is not blocked.

[0048] In addition, the water flow monitoring of the jet water system includes the following steps: checking the stainless steel branch pipe and the pneumatic bellows sealing valve 19 in the jet water system, ensuring that the inside of the stainless steel branch pipe is smooth and free of foreign matter, the pneumatic bellows sealing valve 19 is flexible, and its connection with the second high-pressure gas tank 18 is tight and leak-free, the valve dynamic pressure of the pneumatic bellows sealing valve 19 is set to 0.5MPa, and the opening time does not exceed 2 seconds, and the flow rate of the jet water system is tested, and the flow rate of the jet water system is measured to be 3.78m 3 / h, and prepare nozzles 33 of different diameters so that they can be replaced as needed in subsequent experiments;

[0049] Finally, when the vacuum pressure of the vacuum tank system is monitored, the pressure inside the vacuum tank 25 is detected, the vacuum pump 28 is turned on, and the reading change of the vacuum gauge 20 is observed. The average experimental pressure is measured to be 1000Pa, and the first manual baffle valve 23, the second manual baffle valve 26 and the third manual baffle valve 29 are checked to ensure that their switches are normal.

[0050] 2. Experimental operation steps

[0051] Establishing a vacuum environment: opening the third manual flapper valve 29, and keeping the pneumatic bellows sealing valve 19, the first manual flapper valve 23 and the second manual flapper valve 26 closed.

[0052] Start the vacuum pump 28 to reduce the pressure in the vacuum tank 25 to the target pressure of 1000 Pa. During the pressure reduction process, the pressure change is monitored in real time through the vacuum gauge 20 and the fourth pressure transmitter 21. When the target pressure is reached, the vacuum pump 28 and the third manual baffle valve 29 are closed to maintain the vacuum pressure for 5 minutes. If the pressure rises significantly during this period, it means that there is a leak in the system. It is necessary to carefully check the connection parts and valve sealing conditions, and perform the vacuum operation again after repair.

[0053] Circulating water system adjustment: open the first manual regulating valve 6, the second manual regulating valve 11, and the third manual regulating valve 12, and start the centrifugal pump 1. At this time, the first check valve 3 at the output end of the centrifugal pump 1 is used to prevent water backflow. By adjusting the opening of the first manual regulating valve 6 and the third manual regulating valve 12 and the water pump frequency, observe the readings of the first pressure transmitter 5, the first electromagnetic flowmeter 4, the second electromagnetic flowmeter 7, and the third electromagnetic flowmeter 14 at the same time until the water spray system pressure reaches the target pressure.

[0054] Jet experiment process: open the pneumatic shut-off valve 13, so that the air supply channel of the first high-pressure gas tank 15 connected to the pneumatic shut-off valve 13 is opened, and the high-pressure gas drives the pneumatic bellows sealing valve 19 to open quickly, and the cooling water jet enters the vacuum tank 25 from the stainless steel branch pipe through the nozzle 33. At this time, the camera is used to record the water jet process. At the same time, the temperature transmitter 22, the fourth pressure transmitter 21 installed on the vacuum tank 25, and the third pressure transmitter 17 and the fourth electromagnetic flowmeter 16 in the jet water system are used to collect the temperature, pressure and flow data in the vacuum tank and during the jet process in real time, and the data are stored and analyzed by the computer in the data acquisition and storage system. After a period of jet experiment, the pneumatic shut-off valve 13 is closed, the air supply is cut off, and the pneumatic bellows sealing valve 19 is returned to the seat, the water jet is ended, and the single jet experiment is completed. The system parameter response in the vacuum jet experiment is as follows: Figure 6 shown.

[0055] Post-experiment processing: After the jet experiment is completed, first open the first manual baffle valve 23 to balance the pressure in the vacuum tank 25 with the ambient pressure to prevent danger caused by pressure difference in subsequent operations; then open the second manual baffle valve 26 to drain the accumulated water in the vacuum tank into the collection tank 27, and finally open the rear flange of the vacuum tank 25 to clean the inner wall and remove any remaining impurities and moisture to prepare for the next round of experiments.

[0056] 3. Data Collection and Analysis

[0057] During the entire experiment, the control and data acquisition system 30 works continuously, and the computer in the control and data acquisition system 30 records the data from various sensors in real time, including the pressure, flow and temperature data of different branches of the circulating water system, the jet pressure and flow data of the jet water system, and the vacuum pressure and temperature data in the vacuum tank system. After the experiment, the collected data is analyzed.

[0058] The above specific embodiments are only several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A fusion device vacuum chamber breach jet experimental system, characterized in that: It includes a circulating water system, a jet water system, a vacuum tank system, and a control and data acquisition system (30); The circulating water system is used to provide circulating water, and comprises a centrifugal pump (1), a simulated internal breach branch and a simulated circulating water branch, wherein the input end of the centrifugal pump (1) is connected to a water tank (2); The jet water system is used to generate a cooling water jet, and comprises a stainless steel branch pipe and a pneumatic bellows sealing valve (19) connected thereto, wherein one end of the pneumatic bellows sealing valve (19) is connected to a second high-pressure gas tank (18); The vacuum tank system is used to create a vacuum environment, and comprises a vacuum tank (25), wherein the vacuum tank (25) is connected to a vacuum pump (28); The control and data acquisition system (30) is used to collect, monitor in real time and store experimental data, and includes multiple groups of temperature transmitters, pressure transmitters and electromagnetic flow meters installed in the circulating water system, jet water system and vacuum tank system, and also includes a computer for remote control and real-time monitoring.

2. A fusion device vacuum chamber breach jet experimental system according to claim 1, characterized in that: The output end of the centrifugal pump (1) is fixedly connected to a first check valve (3), the simulated internal breach branch is fixedly connected to a first manual regulating valve (6), and the simulated internal breach branch is also connected to a first pressure transmitter (5) and a first electromagnetic flow meter (4).

3. A fusion device vacuum chamber breach jet experimental system according to claim 2, characterized in that: A second pressure transmitter (8), a third pressure transmitter (9) and a second electromagnetic flow meter (7) are fixedly connected to the simulated circulating water branch line, and a second check valve (10) is provided between the second pressure transmitter (8) and the third pressure transmitter (9).

4. A fusion device vacuum chamber breach jet experimental system according to claim 3, characterized in that: A second manual regulating valve (11) and a third manual regulating valve (12) are provided on a side of the second electromagnetic flowmeter (7) away from the second pressure transmitter (8); a pneumatic shut-off valve (13) is provided on one side of the third manual regulating valve (12); a first high-pressure gas tank (15) is connected to one side of the pneumatic shut-off valve (13); and a third electromagnetic flowmeter (14) is provided on a side of the pneumatic shut-off valve (13) away from the third manual regulating valve (12).

5. A fusion device vacuum chamber breach jet experimental system according to claim 4, characterized in that: The stainless steel pipeline is connected between the second manual regulating valve (11) and the third manual regulating valve (12), and a fourth electromagnetic flow meter (16) and a third pressure transmitter (17) are provided on the stainless steel pipeline.

6. A fusion device vacuum chamber breach jet experimental system according to claim 5, characterized in that: The fourth electromagnetic flowmeter (16) and the third pressure transmitter (17) are both located on a side of the pneumatic bellows sealing valve (19) away from the vacuum tank (25); the inner diameter of the stainless steel pipe is 13-14 mm; the downstream of the stainless steel pipe is connected to the vacuum tank (25) via a nozzle (33).

7. A fusion device vacuum chamber breach jet experimental system according to claim 6, characterized in that: The vacuum tank (25) is connected to a vacuum gauge (20), a fourth pressure transmitter (21), and a temperature transmitter (22); one side of the vacuum tank (25) is connected to a pressure relief tank (24); and a first manual baffle valve (23) is connected between the vacuum tank (25) and the pressure relief tank (24).

8. A fusion device vacuum chamber breach jet experimental system according to claim 7, characterized in that: One side of the vacuum tank (25) is connected to a collecting tank (27), a second manual damper valve (26) is connected between the vacuum tank (25) and the collecting tank (27), and a third manual damper valve (29) is connected between the vacuum tank (25) and the vacuum pump (28).

9. A fusion device vacuum chamber breach jet experimental system according to claim 8, characterized in that: The vacuum tank (25) is provided with a pressure relief port (31) connected to the pressure relief tank (24), the vacuum tank (25) is provided with a vacuum gauge interface (32), the vacuum tank (25) is provided with a vacuum extraction interface (34) on the tank body, the vacuum tank (25) is provided with a drain port (35) at the bottom, and the vacuum tank (25) is provided with two sets of organic glass observation windows (36).

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