A multi-component deuterium-tritium fuel ash gas online preparation and supply demonstration system

Abstract

The application discloses a multi-component deuterium-tritium fuel exhaust gas online preparation and supply demonstration system and relates to the technical field of nuclear fusion. The system comprises a raw material gas passage, a gas rapid mixer, a gas pressurizing and transferring device and a gas temporary storage tank. The raw material gas is introduced into the gas rapid mixer in a fixed proportion through a corresponding raw material gas branch, the gas rapid mixer uniformly mixes the gas, and the gas is temporarily stored in the gas temporary storage tank through the gas pressurizing and transferring device, so as to supply the exhaust gas treatment system / hydrogen isotope treatment system of the deuterium-tritium fuel internal circulation demonstration experiment system of the magnetic confinement fusion reactor. The application can be used for simulating the fixed-proportion and uniform preparation of the exhaust gas in the deuterium-tritium fuel circulation process of the magnetic confinement fusion reactor, and can be combined with a hydrogen isotope separation system and a deuterium-tritium fuel storage and supply system to realize the quantitative replenishment and supply of the deuterium-tritium fuel in the exhaust gas of the magnetic confinement fusion reactor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of nuclear fuel, in particular to a multi-component deuterium-tritium fuel ash gas online preparation and supply demonstration system. BACKGROUND

[0002] Fusion energy is considered to be the most important energy source for human beings in the future because of its wide fuel sources, huge release capacity and far lower radioactivity than nuclear fission. Fusion energy is mainly generated by the fusion of isotopes of hydrogen, deuterium (D) and tritium (T) (D+T→n(14.06 MeV)+He(3.52 MeV)). 4 Since the fuel consumption of deuterium-tritium is less than 5% for each injection into the vacuum chamber (the place where the deuterium-tritium fusion reaction occurs) of the reactor, it needs to be recycled. At the same time, since D and T are gradually consumed, 4 He and H2 impurities will gradually increase, resulting in gradual cooling of the plasma. In order to maintain the operation of the reactor, the "burned" gas in the vacuum chamber needs to be continuously removed and processed by the plasma exhaust gas circulation system, and then injected back into the vacuum chamber through the fuel injection system.

[0003] Therefore, a magnetic confinement fusion reactor deuterium-tritium fuel internal circulation demonstration experimental system is designed, which is mainly used for simulating and demonstrating the recycling process of deuterium-tritium fuel in the operation of the fusion reactor, i.e. the deuterium-tritium fuel is processed by recycling, purification, separation and preparation of specific proportion deuterium-tritium gas in the fusion reactor vacuum chamber, and then supplied to the vacuum chamber again.

[0004] In order to verify that the gas treatment circulation loop of the magnetic confinement fusion reactor deuterium-tritium fuel internal circulation demonstration experimental system can achieve stable operation, it is necessary to accurately dynamically prepare multi-component gas (deuterium-tritium, 4 He, Ar, Ne, CH4 gas) with uniform composition in a certain proportion, to simulate the composition of the "burned" gas under the reaction condition of the vacuum chamber, as the input of the exhaust gas treatment unit, and to verify the engineering feasibility, reliability and rationality of the experimental evidence.

[0005] The dynamic gas preparation method usually uses a flow controller to quantitatively mix multi-component gas according to a certain gas flow ratio to achieve quantitative preparation of mixed gas.

[0006] For example, the invention patent application No. 201410843871.X discloses a dynamic gas preparation instrument and a gas preparation method, which has the following deficiencies: 1. The raw gas passage and the dilution gas passage are directly connected with the mixing pipeline. When the inlet pressure of one or several of the raw gas passage or the dilution gas passage is too high, it will cause backflow in other passages with lower pressure, affecting the control accuracy of the flow controller; 2. If the amount of dynamically prepared gas is too large, without being fully mixed by a special mixing mechanism, there will be a problem of uneven gas mixing.

[0007] For example, the application patent application No. 201610023780.0 discloses a dynamic gas mixing system and a gas mixing method, which has the following deficiencies: 1. For multi-component gas mixing, secondary gas mixing is needed, the first gas mixing chamber lacks effective gas mixing and analysis detection means, and it is difficult to ensure that the gas components in the first mixing chamber can be fully mixed and uniform before entering the second mixing chamber, thereby affecting the gas ratio of secondary gas mixing; 2. Due to the lack of good gas mixing means, pre-mixing treatment is needed, which will cause great waste of resources for processing expensive and scarce raw gas.

[0008] Therefore, in view of the above deficiencies, a multi-component deuterium-tritium fuel exhaust gas online preparation and supply demonstration system is needed to solve the above problems. SUMMARY

[0009] The purpose of the present application is to provide a multi-component deuterium-tritium fuel exhaust gas online preparation and supply demonstration system, which can be used in the deuterium-tritium fuel internal circulation process of a fusion reactor and / or the operation process of a simulation demonstration reactor, to dynamically prepare multi-component uniformly mixed gas in real time and accurately.

[0010] The specific technical solutions are as follows:

[0011] The present application is a multi-component deuterium-tritium fuel exhaust gas online preparation and supply demonstration system, which comprises a raw gas passage, a gas rapid mixer, a gas pressurizing and transferring device, a gas temporary storage tank, and a gas pipeline and valve for connecting the transmission of gas between the components, the raw gas passage comprises a plurality of raw gas branches,

[0012] According to the components of the mixed gas required by the exhaust gas treatment system / hydrogen isotope treatment system of the magnetic confinement fusion reactor deuterium-tritium fuel internal circulation demonstration experiment system, the corresponding raw gas branch of the raw gas is used to input a raw gas with a fixed proportion of multiple components into the gas rapid mixer, the gas rapid mixer mixes and processes the gas rapidly and uniformly, and then the gas is delivered to the corresponding gas temporary storage tank of the exhaust gas treatment system / hydrogen isotope treatment system through the gas pressurizing and transferring device for temporary storage, to supply gas to the exhaust gas treatment system / hydrogen isotope treatment system of the magnetic confinement fusion reactor deuterium-tritium fuel internal circulation demonstration experiment system;

[0013] The gas rapid mixer comprises a cavity, a porous metal spiral gas inlet pipe, a mixed gas disturbance mechanism and a pressure transmitter, the porous metal spiral gas inlet pipe is provided with micro-holes uniformly distributed thereon, the porous metal spiral gas inlet pipe is arranged at the lower part of the cavity, and a plurality of gas inlets are arranged at the bottom of the cavity, raw material gas or recycled gas flows through the raw material gas passage and enters the porous metal spiral gas inlet pipe through the plurality of gas inlets respectively and independently according to the set flow rate, the gas uniformly flows out of the micro-holes uniformly distributed on the porous metal spiral gas inlet pipe, and the mixed gas is mixed at the bottom of the cavity, the mixed gas disturbance mechanism is arranged at the upper part of the cavity, and the gas in the cavity is forcibly stirred and mixed, the mixed gas uniformly mixed is output from the gas outlet at the upper part of the cavity, enters the gas pressurizing and transferring device connected thereto through a pipeline, and the pressure transmitter is arranged at the upper part of the cavity and is used for detecting the gas pressure in the cavity of the gas rapid mixer.

[0014] Further, the mixed gas disturbance mechanism comprises a servo motor, a shaft coupling, a magnetic fluid dynamic sealing structure, a transmission shaft, a metal impeller stirring mechanism and a shaft end baffle, the servo motor is in transmission connection with one end of the transmission shaft through the shaft coupling, the other end of the transmission shaft drives the metal impeller stirring mechanism at the upper part of the cavity of the gas rapid mixer through the shaft end baffle to forcibly stir and mix the gas in the cavity, the rotating speed of the metal impeller stirring mechanism is adjustable, and the magnetic fluid dynamic sealing structure is arranged between the shaft coupling and the transmission shaft and is used for sealing the transmission shaft.

[0015] Further, the raw material gas passage comprises a plurality of raw material gas branches, each raw material gas branch is provided with an automatic shut-off valve, a pressure transmitter and a gas mass flow controller, the automatic shut-off valve is used for selecting the gas opening and closing of the raw material gas branch, the pressure transmitter is used for detecting the stability of the gas supply pressure of the raw material gas branch, and the gas mass flow controller is used for controlling the gas flow of the raw material gas branch into the gas rapid mixer.

[0016] Further, the raw material gas passage comprises a first raw material gas branch, a second raw material gas branch, a third raw material gas branch, a fourth raw material gas branch, a fifth raw material gas branch, a sixth raw material gas branch and a seventh raw material gas branch,

[0017] The first raw material gas branch is connected with carbon monoxide and carbon dioxide mixed gas;

[0018] The second raw material gas branch is connected with helium gas;

[0019] The third raw material gas branch is connected with methane gas;

[0020] The fourth raw material gas branch is connected with argon gas, neon gas and nitrogen gas mixed gas;

[0021] The fifth raw material gas branch is connected with hydrogen gas / deuterium gas;

[0022] The sixth raw material gas branch is connected with deuterium gas / tritium gas;

[0023] The seventh raw material gas branch is connected with the hydrogen-deuterium mixed gas / deuterium-tritium mixed gas.

[0024] Further, the gas rapid mixer comprises a first gas rapid mixer and a second gas rapid mixer;

[0025] The gas pressurization and transfer device comprises a first gas pressurization and transfer device, a second gas pressurization and transfer device, a third gas pressurization and transfer device, a fourth gas pressurization and transfer device, and a fifth gas pressurization and transfer device;

[0026] The first raw material gas branch, the second raw material gas branch, the third raw material gas branch, the fourth raw material gas branch, the fifth raw material gas branch, the sixth raw material gas branch, and the seventh raw material gas branch are all connected with the first gas rapid mixer, and raw material gas is transported to the first gas rapid mixer for mixing treatment; the gas outlet of the first gas rapid mixer is connected with the first gas pressurization and transfer device, and the first gas pressurization and transfer device rapidly pumps the mixed gas prepared by the first gas rapid mixer to the gas temporary storage tank;

[0027] The fifth raw material gas branch, the sixth raw material gas branch, and the seventh raw material gas branch are connected with the second gas rapid mixer, and raw material gas is transported to the second gas rapid mixer for mixing treatment; the gas outlet of the second gas rapid mixer is connected with the second gas pressurization and transfer device, and the second gas pressurization and transfer device rapidly pumps the mixed gas prepared by the second gas rapid mixer to the gas temporary storage tank.

[0028] Further, the gas temporary storage tank comprises a first gas temporary storage tank, a second gas temporary storage tank, a third gas temporary storage tank, and a fourth gas temporary storage tank; the gas temporary storage tank is provided with an automatic stop valve, a pressure transmitter, and a temperature measuring resistance; the automatic stop valve is used for selecting the opening and closing of the pipeline gas; the pressure transmitter is used for detecting the gas pressure in the cavity of the gas temporary storage tank; and the temperature measuring resistance is used for detecting the gas temperature in the cavity of the gas temporary storage tank; the real-time gas standard volume in the cavity of the gas temporary storage tank can be obtained through the gas pressure and the temperature in the cavity of the gas temporary storage tank;

[0029] The first gas temporary storage tank is connected with the fifth raw material gas branch, the sixth raw material gas branch, and the fifth gas pressurization and transfer device through a gas pipeline, and is used for simulating the neutral beam gas in the deuterium-tritium fuel storage and supply demonstration system and simulating the gas recovery;

[0030] The second gas temporary storage tank is connected with the first gas pressurization and transfer device and the third gas pressurization and transfer device through a gas pipeline, and is used for temporarily storing the mixed gas prepared by the first gas rapid mixer and pumping the mixed gas to the ash gas treatment system of the magnetic confinement fusion reactor deuterium-tritium fuel internal circulation demonstration experiment system through the third gas pressurization and transfer device;

[0031] The third gas temporary storage tank is connected with the second gas pressurizing transfer device and the fourth gas pressurizing transfer device through a gas pipeline, used for temporarily storing the mixed gas prepared by the second gas fast mixer, and pumping the mixed gas to the hydrogen isotope processing system of the magnetic confinement fusion deuterium-tritium fuel internal circulation demonstration experiment system through the fourth gas pressurizing transfer device.

[0032] The fourth gas temporary storage tank is connected with the fifth gas pressurizing transfer device and the deuterium-tritium fuel storage and supply system of the magnetic confinement fusion deuterium-tritium fuel internal circulation demonstration experiment system through a gas pipeline, used for temporarily storing the recycled gas supplied by the deuterium-tritium fuel storage and supply system of the magnetic confinement fusion deuterium-tritium fuel internal circulation demonstration experiment system, and pumping the recycled gas to the seventh raw material gas branch through the fifth gas pressurizing transfer device.

[0033] Further, a gas buffer tank is further included, the gas buffer tank is connected with the fifth gas pressurizing transfer device and the seventh raw material gas branch through a gas pipeline, the recycled gas pumped by the fifth gas pressurizing transfer device is buffered through the gas buffer tank and then delivered to the seventh raw material gas branch, the gas buffer tank is provided with an automatic stop valve and a pressure transmitter, the automatic stop valve is used for selecting the opening and closing of the pipeline gas, and the pressure transmitter is used for detecting the gas pressure in the cavity of the gas buffer tank.

[0034] Further, a gas component analysis device is further included, the gas component analysis device is connected with the second gas temporary storage tank, the third gas temporary storage tank and the gas buffer tank through a gas pipeline respectively, used for on-line detecting the gas components prepared by the first gas fast mixer and the second gas fast mixer and the recycled gas components in the gas buffer tank.

[0035] Further, a vacuum acquisition unit is further included, the vacuum acquisition unit is connected with the gas fast mixer, the gas temporary storage tank and the gas component analysis device through a gas pipeline, the vacuum acquisition unit includes a vacuum pump and a vacuum gauge, the vacuum pump is used for the evacuation treatment of the sampling pipeline of the gas fast mixer, the gas temporary storage tank and the gas component analysis device, and the vacuum gauge is used for detecting the vacuum degree of the sampling pipeline of the gas fast mixer, the gas temporary storage tank and the gas component analysis device.

[0036] Further, the automatic stop valve is a high-sealing corrugated pipe pneumatic valve with hydrogen embrittlement resistance, and the pressure transmitter is a high-precision pressure transmitter with a diaphragm having hydrogen embrittlement resistance.

[0037] The beneficial effects of the present application are as follows:

[0038] The application is a multi-component deuterium-tritium fuel exhaust gas online preparation and supply demonstration system, which is scientific and reasonable in design, complete in function, convenient to use, can be used for uniform and accurate preparation of exhaust gas in the deuterium-tritium fuel circulation process of a magnetic confinement fusion reactor, and can be combined with the exhaust gas treatment system, the hydrogen isotope separation system and the deuterium-tritium fuel storage and supply system in the deuterium-tritium fuel internal circulation system to realize quantitative replenishment and supply of deuterium-tritium fuel in the exhaust gas of the magnetic confinement fusion reactor plasma. The test experiment of the application provides corresponding operation data by online supply of H, D simulated exhaust gas, thereby providing reliable data support for stable operation of D and T and ensuring smooth progress of the fusion reaction. The application has important application value for recycling of deuterium-tritium fuel in a magnetic confinement nuclear fusion reactor. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation on the scope. Other related drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0040] Figure 1 is a structural schematic diagram of the exhaust gas online preparation and supply demonstration system of the application;

[0041] Figure 2 is Figure 1 is a structural schematic diagram of the gas rapid mixer in the application.

[0042] Explanation of reference numerals:

[0043] 11-first raw material gas branch, 12-second raw material gas branch, 13-third raw material gas branch, 14-fourth raw material gas branch, 15-fifth raw material gas branch, 16-sixth raw material gas branch, 17-seventh raw material gas branch, 18-pressure transmitter, 19-gas mass flow controller;

[0044] 21-first gas rapid mixer, 22-second gas rapid mixer, 23-magnetic fluid dynamic seal, 24-gas outlet, 25-transmission shaft, 26-metal impeller stirring mechanism, 27-shaft end baffle, 28-perforated metal spiral air inlet pipe, 29-multiway gas inlet, 210-cavity, 211-servo motor, 212-coupling;

[0045] 3-vacuum acquisition unit, 31-vacuum pump, 32-vacuum gauge;

[0046] 41 - first gas pressurization transfer device, 42 - second gas pressurization transfer device, 43 - third gas pressurization transfer device, 44 - fourth gas pressurization transfer device, 45 - fifth gas pressurization transfer device;

[0047] 5 - gas component analysis device;

[0048] 61 - first gas temporary storage tank, 62 - second gas temporary storage tank, 63 - third gas temporary storage tank, 64 - fourth gas temporary storage tank, 65 - temperature measuring thermistor;

[0049] 7 - gas buffer tank. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and are not used to limit the present application, i.e., the described examples are only a part of the examples of the present application, but not all the examples. The components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in various different configurations.

[0051] It should be noted that the term "comprising" or "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0052] Example 1

[0053] The present application is a multi-component deuterium-tritium fuel ash gas online preparation and supply demonstration system, as shown in Figure 1 The system includes a raw gas passage, a gas rapid mixer, a vacuum acquisition unit 3, a gas pressurization transfer device, a gas component analysis device 5, a gas temporary storage tank, a gas buffer tank 7, and a gas pipeline and valve for gas transmission between components.

[0054] According to the components of the mixed gas required by the ash gas treatment system / hydrogen isotope treatment system of the magnetic confinement fusion reactor deuterium-tritium fuel internal circulation demonstration experiment system, a plurality of components of raw gas in a fixed proportion are introduced into the gas rapid mixer through the corresponding raw gas branch of the raw gas, the gas rapid mixer rapidly and uniformly mixes and processes the gas, and then the gas is delivered to the corresponding gas temporary storage tank of the ash gas treatment system / hydrogen isotope treatment system through the gas pressurization transfer device for temporary storage, thereby supplying gas to the ash gas treatment system / hydrogen isotope treatment system of the magnetic confinement fusion reactor deuterium-tritium fuel internal circulation demonstration experiment system.

[0055] Wherein:

[0056] The raw gas passage includes a first raw gas branch 11 , a second raw gas branch 12 , a third raw gas branch 13 , a fourth raw gas branch 14 , a fifth raw gas branch 15 , a sixth raw gas branch 16 and a seventh raw gas branch 17 .

[0057] Each raw gas branch is equipped with an automatic shut-off valve, a pressure transmitter 18 and a gas mass flow controller 19. The automatic shut-off valve is used to select the gas on-off of the raw gas branch, the pressure transmitter 18 is used to detect the stability of the gas supply pressure of the raw gas branch, and the gas mass flow controller 19 is used to control the gas flow of the raw gas branch entering the rapid mixer.

[0058] In this embodiment, the automatic stop valve is a high-sealing bellows pneumatic valve whose contact part with the gas medium is resistant to hydrogen embrittlement; the pressure transmitter 18 is a high-precision pressure transmitter 18 whose diaphragm is resistant to hydrogen embrittlement; and the gas mass flow controller 19 is a high-precision thermal gas mass flow controller 19.

[0059] The gas rapid mixer includes a first gas rapid mixer 21 and a second gas rapid mixer 22 .

[0060] like Figure 2 As shown, the gas rapid mixer includes a cavity 210, a porous metal spiral air inlet pipe 28, a mixed gas disturbance mechanism and a pressure transmitter 18. The porous metal spiral air inlet pipe 28 is evenly distributed with micropores. The porous metal spiral air inlet pipe 28 is arranged at the lower part of the cavity 210, and a multi-channel gas inlet 29 is arranged at the bottom of the cavity 210. The raw gas or the recycled gas flows through the raw gas passage and enters the porous metal spiral air inlet pipe 28 independently through the multi-channel gas inlet 29 according to the set flow rate. The gas The gas flows out at a uniform speed from the evenly distributed micropores on the porous metal spiral air inlet pipe 28 and is mixed at the bottom of the cavity 210. The mixed gas disturbance mechanism is arranged at the upper part of the cavity 210 to forcibly stir and mix the gas in the cavity 210. The evenly mixed mixed gas is output from the gas outlet 24 at the upper part of the cavity 210 and enters the gas pressurization transfer device connected thereto through a pipeline. The pressure transmitter 18 is arranged at the upper part of the cavity 210 to detect the gas pressure in the cavity 210 of the gas rapid mixer.

[0061] Preferably, the mixed gas disturbance mechanism comprises a servo motor 211, a shaft coupling 212, a magnetic fluid dynamic seal structure 23, a transmission shaft 25, a metal impeller stirring mechanism 26, and an end plate 27. The servo motor 211 is in transmission connection with one end of the transmission shaft 25 through the shaft coupling 212. The other end of the transmission shaft 25 drives the metal impeller stirring mechanism 26 at the upper part of the gas rapid mixer cavity 210 to forcibly stir and mix the gas in the cavity 210. The rotating speed of the metal impeller stirring mechanism 26 is adjustable. The magnetic fluid dynamic seal structure 23 is arranged between the shaft coupling 212 and the transmission shaft 25 for sealing the transmission shaft 25.

[0062] The gas pressurizing and transferring device comprises a first gas pressurizing and transferring device 41, a second gas pressurizing and transferring device 42, a third gas pressurizing and transferring device 43, a fourth gas pressurizing and transferring device 44, and a fifth gas pressurizing and transferring device 45. The gas pressurizing and transferring device can avoid gas backflow caused by excessively high pressure in the gas rapid mixer, affect the gas preparation accuracy, or ensure the stable pressure of the gas output from the gas temporary storage tank.

[0063] In the embodiment, the gas pressurizing and transferring device adopts a diaphragm pump pressurizing pump with high sealing performance and no organic material in the gas medium contact part, a vortex pressurizing pump, or the like.

[0064] The gas temporary storage tank comprises a first gas temporary storage tank 61, a second gas temporary storage tank 62, a third gas temporary storage tank 63, and a fourth gas temporary storage tank 64. The gas temporary storage tank is provided with an automatic stop valve, a pressure transmitter 18, and a temperature measuring resistance 65. The automatic stop valve is used for selecting the opening and closing of the pipeline gas. The pressure transmitter 18 is used for detecting the gas pressure in the cavity of the gas temporary storage tank. The temperature measuring resistance 65 is used for detecting the gas temperature in the cavity of the gas temporary storage tank. The real-time gas standard volume in the cavity of the gas temporary storage tank can be obtained through the gas pressure and temperature in the cavity of the gas temporary storage tank.

[0065] Preferably, the gas temporary storage tank adopts a metal pressure container with hydrogen embrittlement resistance.

[0066] The gas buffer tank 7 is connected with the fifth gas pressurizing and transferring device 45 and the seventh raw material gas branch 17 through a gas pipeline. The recovered gas pumped by the fifth gas pressurizing and transferring device 45 is buffered by the gas buffer tank 7 and then delivered to the seventh raw material gas branch 17. The gas buffer tank 7 is provided with an automatic stop valve and a pressure transmitter 18. The automatic stop valve is used for selecting the opening and closing of the pipeline gas. The pressure transmitter 18 is used for detecting the gas pressure in the cavity of the gas temporary storage tank.

[0067] Preferably, the gas temporary storage tank adopts a metal pressure container with hydrogen embrittlement resistance.

[0068] The gas component analysis device 5 is connected with the second gas temporary storage tank 62, the third gas temporary storage tank 63 and the gas buffer tank 7 through gas pipelines, and is used for on-line detection of the gas components prepared by the first gas fast mixer 21 and the second gas fast mixer 22 and the gas components in the gas buffer tank 7.

[0069] Preferably, the gas component analysis device 5 adopts a high-precision gas chromatograph or a high-resolution gas mass spectrometer.

[0070] The vacuum acquisition unit 3 is connected with the gas fast mixers, the gas temporary storage tanks and the gas component analysis device 5 through gas pipelines, and includes a vacuum pump 31 and a vacuum gauge 32, wherein the vacuum pump 31 is used for vacuumizing the sample pipelines of the gas fast mixers, the gas temporary storage tanks and the gas component analysis device 5, and the vacuum gauge 32 is used for detecting the vacuum degree of the sample pipelines of the gas fast mixers, the gas temporary storage tanks and the gas component analysis device 5.

[0071] Preferably, the vacuum pump 31 adopts an oil-free vacuum pump 31.

[0072] The multi-component deuterium-tritium fuel ash gas preparation and supply demonstration system of the application is connected as follows:

[0073] The first raw gas branch 11, the second raw gas branch 12, the third raw gas branch 13, the fourth raw gas branch 14, the fifth raw gas branch 15, the sixth raw gas branch 16 and the seventh raw gas branch 17 are all communicated with the first gas fast mixer 21, and deliver raw gas to the first gas fast mixer 21 for mixing treatment, the gas outlet of the first gas fast mixer 21 is communicated with the first gas pressurizing and transferring device 41, the first gas pressurizing and transferring device 41 pumps the mixed gas prepared by the first gas fast mixer 21 to the second gas temporary storage tank 62, the second gas temporary storage tank 62 is connected with the first gas pressurizing and transferring device 41 and the third gas pressurizing and transferring device 43 through gas pipelines, and is used for temporarily storing the mixed gas prepared by the first gas fast mixer 21, and pumps the mixed gas to the ash gas treatment system of the magnetic confinement fusion reactor deuterium-tritium fuel internal circulation demonstration experiment system through the third gas pressurizing and transferring device 43.

[0074] The fifth raw material gas branch 15, the sixth raw material gas branch 16 and the seventh raw material gas branch 17 are communicated with the second gas rapid mixer 22, and raw material gas is transported to the second gas rapid mixer 22 for mixing treatment; the second gas rapid mixer 22 transports raw material gas for mixing treatment, and the gas outlet of the second gas rapid mixer 22 is communicated with the second gas pressurizing and transferring device 42, and the second gas pressurizing and transferring device 42 rapidly pumps the mixed gas prepared by the second gas rapid mixer 22 to the third gas temporary storage tank 63; the third gas temporary storage tank 63 is connected with the second gas pressurizing and transferring device 42 and the fourth gas pressurizing and transferring device 44 through a gas pipeline, and is used for temporarily storing the mixed gas prepared by the second gas rapid mixer 22, and the mixed gas is pumped to the hydrogen isotope processing system of the magnetic confinement fusion reactor deuterium-tritium fuel internal circulation demonstration experiment system through the fourth gas pressurizing and transferring device 44.

[0075] The embodiment is used for simulating the preparation and gas supply of ash discharge gas, and the specific process is as follows:

[0076] The raw material gas of the first raw material gas branch 11 is a mixed gas of carbon monoxide and carbon dioxide in a certain proportion; the raw material gas of the second raw material gas branch 12 is helium; the raw material gas of the third raw material gas branch 13 is methane; the raw material gas of the fourth raw material gas branch 14 is a mixed gas of argon, neon and nitrogen in a certain proportion; the raw material gas of the fifth raw material gas branch 15 is deuterium; the raw material gas of the sixth raw material gas branch 16 is tritium; and the raw material gas of the seventh raw material gas branch 17 is a deuterium-tritium mixed gas. The deuterium-tritium mixed gas of the seventh raw material gas branch 17 is provided by the fuel storage and supply system of the magnetic confinement fusion reactor deuterium-tritium fuel internal circulation demonstration experiment system, and is temporarily stored in the fourth gas temporary storage tank 64. The gas in the fourth gas temporary storage tank 64 is pumped to the gas buffer tank 7 through the fifth gas pressurizing and transferring device 45, and the deuterium-tritium mixed gas is provided for the seventh raw material gas branch 17 through the gas buffer tank 7.

[0077] Operation steps:

[0078] First, the vacuum pump 31 of the vacuum acquisition unit 3 evacuates the gas rapid mixer, the gas temporary storage tank and the sampling pipeline of the gas component analysis device 5. The vacuum gauge 32 is used to detect the vacuum degree of the gas rapid mixer, the gas temporary storage tank and the sampling pipeline of the gas component analysis device 5. After the detection is qualified, the gas flow of each raw gas branch is controlled according to the raw gas concentration, and the raw gas of each raw gas branch is input into the first gas rapid mixer 21. The first gas rapid mixer 21 quickly and evenly mixes the gas and pumps it to the second gas temporary storage tank 62 through the first gas boost transfer device 41. The gas component in the second gas temporary storage tank 62 is analyzed by the gas component analysis device 5. During the gas distribution and supply process, sampling and analysis are performed once every 10 minutes. The gas in the second gas temporary storage tank 62 is pumped to the ash gas treatment system of the deuterium-tritium fuel internal circulation demonstration experimental system of the magnetic confinement fusion reactor through the third gas boost transfer device 43, so as to realize the preparation and supply of multi-component simulated ash gas with a certain proportion in the ash gas treatment rapid operation mode.

[0079] The experimental test of the present invention simulates the online supply of ash exhaust gas by replacing D with H and T with D, and provides corresponding operation data, thereby providing reliable data support for the stable operation of D and T and ensuring the smooth progress of the fusion reaction.

[0080] The specific testing process is as follows:

[0081] According to the test requirements, H2, D2 and He enter the gas distribution system through the busbar, and the mixed gas (Ne+Ar+N2), (CO+CO2) and CH4 use cylinder gas to enter the gas distribution system through the pressure reducing valve. The gas distribution system measurement and control software is used to set H2, D2, D2 / H2 mixed gas, 4 The gas flow rates of the seven feed gas branches are He, (Ne+Ar+N2), (CO+CO2) and CH4, among which the D2 / H2 mixed gas is provided by the fuel storage and supply system (SDS) of the magnetic confinement fusion reactor deuterium-tritium fuel internal circulation demonstration experimental system. Specifically, the D2 / H2 mixed gas input by the fuel storage and supply system of the magnetic confinement fusion reactor deuterium-tritium fuel internal circulation demonstration experimental system is stored in the fourth gas temporary storage tank 64 of the present invention, and the hydrogen-deuterium mixed gas is circulated at 2.4m 3 The feed gas from the seven feed gas branches is pumped to the gas distribution system at a flow rate of 1 / h. The feed gas is mixed in the rapid gas mixing tank V1101 and then enters the temporary gas storage tanks V1201 and V1202. The gas from the temporary gas storage tanks is pressure-regulated through an interface system and enters the exhaust gas processing system (TEP) of the deuterium-tritium fuel internal circulation demonstration experimental system for the magnetic confinement fusion reactor. The H2 and D2 mixture after exhaust gas treatment enters the SDS system. During this process, a chromatograph is used to analyze the impurity gas content in the prepared hydrogen isotopes.

[0082] Three experiments were carried out in the above gas configuration mode, and were analyzed by chromatograph, respectively recorded as the first experiment of each component gas flow in the ash gas treatment fast running mode, the second experiment of each component gas flow in the ash gas treatment fast running mode, the third experiment of each component gas flow in the ash gas treatment fast running mode, and the results of the three experiments were analyzed and discussed.

[0083] 1. The first experiment of each component gas flow in the ash gas treatment fast running mode

[0084] The preset concentration of each component in the experiment process is divided into two stages:

[0085] The first stage: (H2+D2) ~ 94.8%, (CO+CO2) ~ 0.7%, He ~ 3.3%, CH4 ~ 0%, (Ne+Ar+N2) ~ 1.2%, that is, the impurity gas concentration is 5.2%. In the experiment, the gas flow of (H2+D2) is 40 L / min, the gas flow of (CO+CO2) is 0.3 L / min, the gas flow of He is 1.4 L / min, the gas flow of CH4 is 0 L / min, and the gas flow of (Ne+Ar+N2) is 0.5 L / min, and the total flow is 42.2 L / min (2.5 m 3 / h).

[0086] The second stage: (H2+D2) ~ 94.7%, (CO+CO2) ~ 0.7%, He ~ 3.3%, CH4 ~ 0.1%, (Ne+Ar+N2) ~ 1.2%, that is, the impurity gas concentration is 5.3%. In the experiment, the gas flow of (H2+D2) is 40 L / min, the gas flow of (CO+CO2) is 0.3 L / min, the gas flow of He is 1.4 L / min, the gas flow of CH4 is 0.01 L / min, and the gas flow of (Ne+Ar+N2) is 0.5 L / min, and the total flow is 42.21 L / min (2.5 m 3 / h). In the above two stages of gas configuration process, sampling analysis is taken once about 10 min, and the experimental results are shown in Table 1.

[0087] In the first stage of gas configuration, the concentrations of (CO+CO2), He, CH4 and (Ne+Ar+N2) in the first analysis result are 0.44%, 3.39%, 0% and 1.21% (total 5.04%) respectively, which deviates slightly from the preset 5.2%. However, from the subsequent analysis results, it can be seen that D2, H2 and impurity gases He, (Ne+Ar+N2), (CO2+CO) can be quickly mixed and uniformly distributed in the gas mixing tank during the gas configuration process, and the impurity gas content is stable at about 5.5%, which meets the design requirements.

[0088] In the second stage of the gas mixing, the concentrations of (CO+CO2), He, CH4 and (Ne+Ar+N2) in the first analysis result were 0.65%, 3.52%, 0.0016% and 1.63% (total 5.44%) respectively, and the content of the impurity gas was basically consistent with the preset 5.3%, which indicated that after the first stage of the gas mixing process, the component gases were fully mixed in the gas mixing tank and the pipeline, and the components were uniformly distributed. From the subsequent analysis results, it can be seen that the content of the impurity gas is stable at about 5.4%, which meets the design requirements.

[0089] Table 1 First analysis result of the first gas mixing experiment in the quick operation mode of the ash gas treatment (ppm)

[0090] Number of analyses He Ne + Ar + N2 CH4 CO + CO2 Total 1 33809.88 12107.47 0 4387.024 50304.38 2 35917.36 13305.93 0 6465.678 55688.97 3 35925.19 13310.74 0 6258.467 55494.4 4 35591.81 12833.64 0 6067.229 54492.67 5 35400.25 12413.04 0 5741.414 53554.7 6 35791.9 12559.39 0 5857.569 54208.86 7 35616.11 12980.47 0 6156.665 54753.24 8 35348.67 12437.4 0 6319.134 54105.21 9 35530.55 12728 0 6721.015 54979.56 10 35179.64 12618.52 1629.524 6548 54346.16 11 35184.49 12575.16 1754.787 6012.488 53772.13 12 35236.34 12629.06 1688.269 6611.047 54476.44

[0091] 2. Second experiment of the component gas flow in the quick operation mode of the ash gas treatment

[0092] During the experiment, the preset concentrations of the components were divided into two stages:

[0093] The first stage: (H2+D2) ~ 94.8%, (CO+CO2) ~ 0.7%, He ~ 3.3%, CH4 ~ 0%, (Ne+Ar+N2) ~ 1.2%, i.e. the impurity gas concentration is 5.2%. In the experiment, the gas mixing flow of (H2+D2) was 40 L / min, the gas mixing flow of (CO+CO2) was 0.3 L / min, the gas mixing flow of He was 1.4 L / min, the gas mixing flow of CH4 was 0 L / min, the gas mixing flow of (Ne+Ar+N2) was 0.5 L / min, and the total flow was 42.2 L / min (2.5 m3 / h).

[0094] The second stage: (H2+D2) ~ 94.7%, (CO+CO2) ~ 0.7%, He ~ 3.3%, CH4 ~ 0.1%, (Ne+Ar+N2) ~ 1.2%, i.e. the impurity gas concentration is 5.3%. In the experiment, the gas mixing flow of (H2+D2) was 40 L / min, the gas mixing flow of (CO+CO2) was 0.3 L / min, the gas mixing flow of He was 1.4 L / min, the gas mixing flow of CH4 was 0.01 L / min, the gas mixing flow of (Ne+Ar+N2) was 0.5 L / min, and the total flow was 42.21 L / min (2.5 m3 / h). The sample was taken and analyzed once about 10 min during the above two stages of the gas mixing process, and the experimental results are shown in Table 2.

[0095] The concentration of (CO+CO2), He, CH4 and (Ne+Ar+N2) in the first analysis result in the first stage of gas distribution is 0.64%, 3.61%, 0% and 1.29% (5.54% in total) respectively. The content of impurity gas is slightly deviated from the preset 5.3%, but from the subsequent analysis results, it can be seen that the D2, H2 and impurity gases He, (Ne+Ar+N2) and (CO2+CO) can be quickly mixed and uniformly distributed in the gas mixing tank during the gas distribution process, and the content of impurity gas is stable at about 5.5%, which meets the design requirements.

[0096] The concentration of (CO+CO2), He, CH4 and (Ne+Ar+N2) in the first analysis result in the first stage of gas distribution is 0.64%, 3.61%, 0% and 1.29% (5.54% in total) respectively. The content of impurity gas is slightly deviated from the preset 5.3%, but from the subsequent analysis results, it can be seen that the D2, H2 and impurity gases He, (Ne+Ar+N2) and (CO2+CO) can be quickly mixed and uniformly distributed in the gas mixing tank during the gas distribution process, and the content of impurity gas is stable at about 5.5%, which meets the design requirements.

[0097] Table 2 Second gas distribution experiment result (ppm) in the rapid operation mode of ash discharge gas treatment

[0098] Number of analyses He [Ne+Ar+N2] CH4 [CO + CO2] Total 1 36070.88 12892.65 0 6410.333 55373.86 2 36285.15 13058.49 0 6200.194 55543.83 3 36156.47 13348.18 0 6633.321 56137.97 4 35936.43 12969.45 0 6278.751 55184.63 5 35515.96 12372.99 0 5913.889 53802.84 6 35757.45 12662.29 229.366 6376.711 54796.45 7 35128.51 12667.09 1425.693 6170.597 53966.2 8 35460.73 12705.39 1426.599 6575.292 54741.41 9 36055.01 12979.1 1480.853 6771.825 55805.94 10 35596.29 12627.17 1538.65 6280.514 54503.98

[0099] 3. Third experiment of component gas flow in the rapid operation mode of ash discharge gas treatment

[0100] The preset concentration of each component in the experiment process is divided into two stages:

[0101] The first stage is (H2+D2) ~ 94.8%, (CO+CO2) ~ 0.7%, He ~ 3.3%, CH4 ~ 0%, (Ne+Ar+N2) ~ 1.2%, i.e. the impurity gas concentration is 5.2%. The gas distribution flow of (H2+D2) in the experiment is 40 L / min, the gas distribution flow of (CO+CO2) is 0.3 L / min, the gas distribution flow of He is 1.4 L / min, the gas distribution flow of CH4 is 0 L / min, and the gas distribution flow of (Ne+Ar+N2) is 0.5 L / min, and the total flow is 42.2 L / min (2.5 m 3 / h).

[0102] Second stage: (H2+D2) ~ 94.7%, (CO+CO2) ~ 0.7%, He ~ 3.3%, CH4~ 0.1%, (Ne+Ar+N2) ~ 1.2%, i.e. the concentration of impurity gas is 5.3%. In the experiment, the flow rate of (H2+D2) is 40 L / min, the flow rate of (CO+CO2) is 0.3 L / min, the flow rate of He is 1.4 L / min, the flow rate of CH4is 0.01 L / min, and the flow rate of (Ne+Ar+N2) is 0.5 L / min, and the total flow rate is 42.21 L / min (2.5 m3 / h). The sample is analyzed once about 10 min during the above two stages of gas mixing, and the experimental results are shown in Table 3.

[0103] In the first stage of gas mixing, the concentrations of (CO+CO2), He, CH4and (Ne+Ar+N2) in the first analysis result are 0.64%, 3.56%, 0% and 1.26% (total 5.47%) respectively, and the content of impurity gas is slightly deviated from the preset 5.3%, but from the subsequent analysis results, it can be seen that D2, H2and impurity gases He, (Ne+Ar+N2), (CO2+CO) can be quickly mixed uniformly in the gas mixing tank during the gas mixing process, and the content of impurity gas is stable at about 5.5%, which meets the design requirements.

[0104] In the second stage of gas mixing, the concentrations of (CO+CO2 ) , He, CH4and (Ne+Ar+N2) in the first analysis result are 0.63%, 3.56%, 0.014% and 1.27% (total 5.47%) respectively, and the content of impurity gas is basically consistent with the preset 5.3%, which shows that after the first stage of gas mixing, the component gases have been fully mixed in the gas mixing tank and the pipeline, and the components are uniformly distributed. From the subsequent analysis results, it can be seen that the content of impurity gas is stable at about 5.5%, which meets the design requirements.

[0105] Table 3 Third gas mixing experiment results (ppm) under the rapid operation mode of the ash discharge gas treatment

[0106] Number of analyses He [Ne+Ar+N2] CH4 [CO + CO2] Total 1 35614.66 12646.73 0 6411.268 54672.66 2 35795.44 12845.4 0 6936.886 55577.73 3 35740.78 13026.08 0 6554.87 55321.74 4 35311.52 12611.84 0 6021.567 53944.93 5 35607.5 12727.34 1414.384 6328.313 54663.15 6 35935.89 12970.79 1448.347 6490.529 55397.21 7 35366.69 12410.74 1398.906 6813.184 54590.62 8 35807.65 13091.1 1444.398 6545.587 55444.33

[0107] From the above test results, it can be seen that D2, H2and impurity gases He, (Ne+Ar+N2), (CO2+CO) can be quickly mixed uniformly in the gas rapid mixer during the gas mixing process, and the content of impurity gas is stable at about 5.5%, which meets the design requirements.

[0108] Example 2

[0109] The difference between this example and Example 1 is:

[0110] The embodiment is to simulate the preparation and supply of the exhaust gas after impurity removal, and the specific operation steps are as follows:

[0111] By controlling the gas flow of each component raw gas of the fifth raw gas branch 15, the sixth raw gas branch 16 and the seventh raw gas branch 17, the exhaust gas after impurity removal in the magnetic confinement fusion reactor deuterium-tritium fuel internal circulation demonstration experiment system is proportionally introduced into the second gas rapid mixer 22. After the second gas rapid mixer 22 rapidly and uniformly mixes and processes the gas, the gas is pumped to the third gas temporary tank 63 through the second gas pressurizing transfer device 42. At the same time, the gas component analysis device 5 analyzes the gas components in the third gas temporary tank 63, and then the mixed gas is pumped to the hydrogen isotope processing system of the magnetic confinement fusion reactor deuterium-tritium fuel internal circulation demonstration experiment system through the fourth gas pressurizing transfer device 44. Thus, the preparation and supply of the exhaust gas after impurity removal in a fixed proportion in the exhaust gas processing rapid operation mode can be realized, the gas preparation precision can be 1% or less than the difference between the actual gas proportion and the theoretical calculation, and the preparation flow can reach 5m 3 / h.

[0112] In the embodiment, the preparation of the deuterium-tritium mixed gas is used to simulate the deuterium-tritium mixed supply of the hydrogen isotope separation system, to provide a stable, large-flow, uniform mixed gas source, so as to verify that the hydrogen isotope separation system in the demonstration device has a processing capacity of not less than 5m 3 / h.

[0113] The present application is not limited to the foregoing specific embodiments. The present application extends to any new feature or any new combination disclosed in this specification, and any new method or process steps or any new combination disclosed.

Claims

1. A multi-component deuterium-tritium fuel ash gas on-line formulation feed demonstration system characterized by: The gas pipeline and valve for connecting each component between the transmission gas, the raw gas passage including a plurality of raw gas branch, According to the component of the mixed gas required by the exhaust gas treatment system / hydrogen isotope treatment system of the magnetic confinement fusion reactor deuterium-tritium fuel internal circulation demonstration experiment system, the raw gas corresponding to the raw gas branch is input into the gas rapid mixer in a fixed proportion and multiple components, the gas rapid mixer uniformly mixes and processes the gas, and then the gas is delivered to the corresponding gas temporary storage tank of the exhaust gas treatment system / hydrogen isotope treatment system through the gas pressurization transfer device, so as to supply gas for the exhaust gas treatment system / hydrogen isotope treatment system of the magnetic confinement fusion reactor deuterium-tritium fuel internal circulation demonstration experiment system; The gas rapid mixer comprises a cavity, a porous metal spiral gas inlet pipe, a mixed gas disturbance mechanism and a pressure transmitter, the porous metal spiral gas inlet pipe is uniformly provided with micropores, the porous metal spiral gas inlet pipe is arranged at the lower part of the cavity, and a plurality of gas inlets are arranged at the bottom of the cavity, the raw gas or the recovered gas flows through the raw gas passage and enters the porous metal spiral gas inlet pipe through the plurality of gas inlets at a set flow rate, the gas uniformly flows out of the micropores uniformly distributed on the porous metal spiral gas inlet pipe, and the gas is mixed at the bottom of the cavity, the mixed gas disturbance mechanism is arranged at the upper part of the cavity, and the gas in the cavity is forcibly stirred and mixed, the uniformly mixed mixed gas is output from the gas outlet at the upper part of the cavity, enters the gas pressurization transfer device connected thereto through the pipeline, and the pressure transmitter is arranged at the upper part of the cavity and is used for detecting the gas pressure in the cavity of the gas rapid mixer; The mixed gas disturbance mechanism comprises a servo motor, a shaft coupling, a magnetic fluid dynamic sealing structure, a transmission shaft, a metal impeller stirring mechanism and a shaft end baffle, the servo motor is in transmission connection with one end of the transmission shaft through the shaft coupling, the other end of the transmission shaft drives the metal impeller stirring mechanism at the upper part of the cavity of the gas rapid mixer to forcibly stir and mix the gas in the cavity through the shaft end baffle, the rotating speed of the metal impeller stirring mechanism is adjustable, and the magnetic fluid dynamic sealing structure is arranged between the shaft coupling and the transmission shaft and is used for sealing the transmission shaft.

2. A multi-component deuterium-tritium fuel ash gas on-line preparation and feeding demonstration system according to claim 1, characterized in that: The raw gas passage comprises a plurality of raw gas branches, each raw gas branch is provided with an automatic stop valve, a pressure transmitter and a gas mass flow controller, the automatic stop valve is used for selecting the gas opening and closing of the raw gas branch, the pressure transmitter is used for detecting the stability of the gas supply pressure of the raw gas branch, and the gas mass flow controller is used for controlling the gas flow of the raw gas branch input into the gas rapid mixer.

3. A multi-component deuterium-tritium fuel ash gas on-line preparation and feeding demonstration system according to claim 2, characterized in that: The raw gas passage comprises a first raw gas branch, a second raw gas branch, a third raw gas branch, a fourth raw gas branch, a fifth raw gas branch, a sixth raw gas branch and a seventh raw gas branch, The first raw gas branch inputs carbon monoxide and carbon dioxide mixed gas; The second raw gas branch inputs helium gas; The third raw gas branch inputs methane gas; The fourth raw gas branch inputs argon gas, neon gas and nitrogen gas mixed gas; The fifth raw gas branch inputs hydrogen gas / deuterium gas; The sixth raw material gas branch is connected with deuterium gas / tritium gas; The seventh raw material gas branch is connected with hydrogen-deuterium mixed gas / deuterium-tritium mixed gas.

4. A multi-component deuterium-tritium fuel ash gas on-line preparation and feeding demonstration system according to claim 3, characterized in that: The gas rapid mixer comprises a first gas rapid mixer and a second gas rapid mixer; The gas booster transfer device comprises a first gas booster transfer device, a second gas booster transfer device, a third gas booster transfer device, a fourth gas booster transfer device and a fifth gas booster transfer device; The first raw material gas branch, the second raw material gas branch, the third raw material gas branch, the fourth raw material gas branch, the fifth raw material gas branch, the sixth raw material gas branch and the seventh raw material gas branch are communicated with the first gas rapid mixer, and raw material gas is transported to the first gas rapid mixer for mixing treatment; the gas outlet of the first gas rapid mixer is communicated with the first gas booster transfer device, and the first gas booster transfer device rapidly pumps the mixed gas prepared by the first gas rapid mixer to the gas temporary storage tank; The fifth raw material gas branch, the sixth raw material gas branch and the seventh raw material gas branch are communicated with the second gas rapid mixer, and raw material gas is transported to the second gas rapid mixer for mixing treatment; the gas outlet of the second gas rapid mixer is communicated with the second gas booster transfer device, and the second gas booster transfer device rapidly pumps the mixed gas prepared by the second gas rapid mixer to the gas temporary storage tank.

5. A multi-component deuterium-tritium fuel ash gas on-line formulation feeding demonstration system according to claim 4, characterized in that: The gas temporary storage tank comprises a first gas temporary storage tank, a second gas temporary storage tank, a third gas temporary storage tank and a fourth gas temporary storage tank; the gas temporary storage tank is provided with an automatic stop valve, a pressure transmitter and a temperature measuring resistance; the automatic stop valve is used for selecting the opening and closing of the pipeline gas; the pressure transmitter is used for detecting the gas pressure in the cavity of the gas temporary storage tank; and the temperature measuring resistance is used for detecting the gas temperature in the cavity of the gas temporary storage tank; the real-time gas standard volume in the cavity of the gas temporary storage tank can be obtained through the gas pressure and the temperature in the cavity of the gas temporary storage tank; The first gas temporary storage tank is connected with the fifth raw material gas branch, the sixth raw material gas branch and the fifth gas booster transfer device through a gas pipeline, and is used for simulating the neutral beam gas in the deuterium-tritium fuel storage and supply demonstration system and simulating the gas recovery; The second gas temporary storage tank is connected with the first gas booster transfer device and the third gas booster transfer device through a gas pipeline, and is used for temporarily storing the mixed gas prepared by the first gas rapid mixer and pumping the mixed gas to the ash gas treatment system of the magnetic confinement fusion reactor deuterium-tritium fuel internal circulation demonstration experiment system through the third gas booster transfer device; The third gas temporary storage tank is connected with the second gas booster transfer device and the fourth gas booster transfer device through a gas pipeline, and is used for temporarily storing the mixed gas prepared by the second gas rapid mixer and pumping the mixed gas to the hydrogen isotope treatment system of the magnetic confinement fusion reactor deuterium-tritium fuel internal circulation demonstration experiment system through the fourth gas booster transfer device; The fourth gas temporary storage tank is connected with the fifth gas pressurizing transfer device and the deuterium-tritium fuel storage and supply system of the magnetic confinement fusion reactor through a gas pipeline, and is used for temporarily storing the recovered gas supplied by the deuterium-tritium fuel storage and supply system of the magnetic confinement fusion reactor.

6. A multi-component deuterium-tritium fuel ash gas on-line preparation and feeding demonstration system according to claim 5, characterized in that: The gas buffer tank is connected with the fifth gas pressurizing transfer device and the seventh raw material gas branch through a gas pipeline, and the recovered gas pumped by the fifth gas pressurizing transfer device is delivered to the seventh raw material gas branch after being buffered by the gas buffer tank.

7. A multi-component deuterium-tritium fuel ash gas on-line formulation feeding demonstration system according to claim 6, characterized in that: The gas component analysis device is connected with the second gas temporary storage tank, the third gas temporary storage tank and the gas buffer tank through a gas pipeline, and is used for on-line detecting the gas components prepared by the first gas rapid mixer and the second gas rapid mixer and the recovered gas components in the gas buffer tank.

8. A multi-component deuterium-tritium fuel ash gas on-line preparation and feeding demonstration system according to claim 7, characterized in that: The vacuum acquisition unit is connected with the gas rapid mixer, the gas temporary storage tank and the gas component analysis device through a gas pipeline, and includes a vacuum pump and a vacuum gauge.

9. A multi-component D-T fuel ash gas on-line preparation and feeding demonstration system according to any one of claims 2, 5, 6, characterized in that, The automatic cut-off valve is a high-sealing corrugated tube pneumatic valve with hydrogen embrittlement resistance; and the pressure transmitter is a high-precision pressure transmitter with a diaphragm having hydrogen embrittlement resistance.

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