Device for preparing gas-liquid mixture and method for preparing gas-liquid mixture

Abstract

The embodiment of the invention relates to the technical field of preparation of liquid and gas mixed phases, in particular to a device for preparing a gas-liquid mixture and a method for preparing the gas-liquid mixture. The device for preparing the gas-liquid mixture comprises a first-class gas supply part, a plurality of second-class gas supply parts, a first-class gas distribution assembly, a plurality of second-class gas distribution assemblies, a plurality of first ampoule bottles, a plurality of second ampoule bottles and an ampoule bottle melting and sealing machine. By arranging the first-type gas supply part and the plurality of second-type gas supply parts, gases with different components are supplied to the plurality of first ampoule bottles and the plurality of second ampoule bottles. Moreover, by arranging the first gas distribution assembly and the plurality of second gas distribution assemblies, the plurality of first ampoule bottles and the plurality of second ampoule bottles can be treated at the same time, so that the distribution efficiency of gases with different components is remarkably improved, and the preparation efficiency of the gas-liquid mixture is further improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of preparing a liquid-gas mixture, and specifically to a device for preparing a gas-liquid mixture and a method for preparing a gas-liquid mixture. Background Art

[0002] The statements herein merely provide background information related to the present application and do not necessarily constitute prior art.

[0003] During nuclear reactor operation, the coolant solution undergoes irradiation decomposition due to the intense radiation field in the core, generating highly oxidizing radiolytic products. These highly oxidizing radiolytic products not only corrode structural materials but also interfere with reactor reactivity control and affect the primary circuit radiation field. Therefore, irradiation decomposition experiments on coolant solution are necessary to accurately assess the degree of structural material degradation and ensure the safe and stable operation of nuclear power plants. Summary of the Invention

[0004] A brief overview of the present application is provided below to provide a basic understanding of certain aspects of the present application. It should be understood that this overview is not an exhaustive overview of the present application. It is not intended to identify key or important portions of the present application, nor is it intended to limit the scope of the present application. Its purpose is simply to present certain concepts in a simplified form as a prelude to the more detailed description that will be discussed later.

[0005] In a first aspect, an embodiment of the present application provides a device for preparing a gas-liquid mixture, wherein the gas-liquid mixture includes an aqueous solution and gases of different components, and comprises: a first-class gas provider, a plurality of second-class gas providers, a first-class gas distribution assembly, a plurality of second-class gas distribution assemblies, a plurality of first ampoules, a plurality of second ampoules, and an ampoule sealing machine; the first-class gas provider is configured to provide a first-class gas; the plurality of second-class gas providers are configured to provide a second-class gas of different components; the first-class gas distribution assembly is configured to distribute the first-class gas provided by the first-class gas provider to the plurality of first ampoules and the plurality of second ampoules; the plurality of second-class gas distribution assemblies are configured to distribute the plurality of second-class gases The second type of gas of different components provided by the providing component is distributed to multiple second ampoules; multiple first ampoules are configured to contain aqueous solutions and are configured to collect the first type of gas distributed by the first type of gas distribution component; multiple second ampoules are configured to contain aqueous solutions and are configured to collect the first type of gas distributed by the first type of gas distribution component and the second type of gas of different components distributed by multiple second type gas distribution components; the ampoule sealing machine is configured to seal the multiple first ampoules that collect the first type of gas and the multiple second ampoules that collect the first type of gas and the second type of gas of different components; wherein the first type of gas is argon; the second type of gas is a mixture of argon and hydrogen or a mixture of argon and nitrogen.

[0006] In an embodiment of the present application, by setting a first-class gas provider and multiple second-class gas providers, gases of different components are provided to multiple first ampoules and second ampoules. Compared with the conventional method of distributing gases separately, the device provided by the present application can simultaneously distribute gases to multiple first ampoules and second ampoules through the first-class gas distribution component and multiple second-class gas distribution components, which significantly improves the distribution efficiency of gases of different components, and thereby improves the preparation efficiency of gas-liquid mixtures of gases of different components and aqueous solutions.

[0007] In a second aspect, an embodiment of the present application provides a method for preparing a gas-liquid mixture, the gas-liquid mixture including an aqueous solution and gases of different components, and is performed using the apparatus of the first aspect of the present application, comprising the following steps: S10: preparing an aqueous solution; S20: passing the aqueous solution from step S10 into a plurality of first ampoules and a plurality of second ampoules; S30: activating a first-type gas provider to charge the first-type gas into the plurality of first ampoules and the plurality of second ampoules from step S20, thereby obtaining a plurality of first ampoules containing a gas-liquid mixture of the aqueous solution and the first-type gas; S40: activating a plurality of second-type gas providers to charge the second-type gases of different components into the plurality of second ampoules from step S30, thereby obtaining a plurality of second ampoules containing a gas-liquid mixture of the aqueous solution, the first-type gas, and the second-type gases of different components;

[0008] S50: starting the ampoule sealing machine to seal the plurality of first ampoules in step S30 and the plurality of second ampoules in step S40 to obtain a gas-liquid mixture of an aqueous solution and gases of different components.

[0009] In an embodiment of the present application, a first type of gas is introduced into a plurality of first ampoules and a plurality of second ampoules, thereby effectively removing oxygen from the plurality of first ampoules and the plurality of second ampoules. The plurality of second ampoules, from which oxygen has been removed, are then filled with a second type of gas of different components, thereby obtaining a gas-liquid mixture of the second type of gas of different components and an aqueous solution. Furthermore, by using an ampoule sealing machine to seal the plurality of first ampoules and the plurality of second ampoules, rapid packaging of the gas-liquid mixture of different gas components can be achieved, thereby eliminating interference from impurities in the experimental environment of aqueous solution irradiation decomposition. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Other objects and advantages of the present application will become apparent from the following description of the embodiments of the present application with reference to the accompanying drawings, which will help to provide a comprehensive understanding of the present application.

[0011] Figure 1 Schematic diagram of a device for preparing a gas-liquid mixture according to an embodiment of the present application.

[0012] Figure 2 4 is a flow chart of a method for preparing a gas-liquid mixture according to an embodiment of the present application.

[0013] Description of reference numerals:

[0014] 1. A device for preparing a gas-liquid mixture;

[0015] 10. Category I gas supply components; 11. Category I gas cylinders; 12. Gas cylinder valves;

[0016] 20. Category II gas supply components; 21. Category II gas cylinders;

[0017] 30. First-type gas distribution assembly; 31. First distribution pipeline; 311. First-type gas first inlet pipeline; 312. First-type gas first connecting pipeline; 313. First-type gas first outlet pipeline; 314. First-type gas first valve; 32. Second distribution pipeline; 321. Second-type gas first connecting pipeline; 322. Second-type gas first outlet pipeline; 323. Second-type gas first valve;

[0018] 40. Second-class gas distribution assembly; 41. Second-class gas inlet pipeline; 42. Second-class gas connecting pipeline; 43. Second-class gas outlet pipeline; 44. Second-class gas first valve; 45. Second-class gas second valve;

[0019] 50. First ampoule;

[0020] 60. Second ampoule;

[0021] 70. Ampoule sealing machine.

[0022] It should be noted that the drawings are not necessarily drawn to scale, but are merely shown in a schematic manner that does not affect the reader's understanding. DETAILED DESCRIPTION

[0023] Exemplary embodiments of the present application will be described below with reference to the accompanying drawings. For the sake of clarity and conciseness, not all features of actual implementations are described in the specification. However, it should be understood that many implementation-specific decisions must be made in the process of developing any such actual implementation in order to achieve the developer's specific goals, such as meeting those constraints related to the system and business, and these constraints may vary depending on the implementation. In addition, it should be understood that although the development work may be very complex and time-consuming, it is a routine task for those skilled in the art who benefit from the content of this application.

[0024] It is also necessary to explain here that, in order to avoid obscuring the present application due to unnecessary details, the accompanying drawings only show the device structure and / or processing steps that are closely related to the solution according to the present application, while other details that are not closely related to the present application are omitted.

[0025] The inventors of the present application have discovered that irradiation decomposition experiments on coolant aqueous solutions are generally conducted by simulating the in-reactor irradiation conditions as realistically as possible. However, since a nuclear reactor is an open system with strong nonlinearity and multi-field coupling, the simulated conditions are quite different from the actual operating conditions. A complex relationship in the four-dimensional parameter space of "irradiation field-thermal field-chemical field-material field" must be constructed through massive experiments. Therefore, in such studies, a large number of aqueous solution mixture samples to be irradiated under different experimental conditions need to be produced. However, current equipment can only produce a single or a few aqueous solution mixture samples at a time, which is inefficient.

[0026] Based on this, an embodiment of the present application provides a device for preparing a gas-liquid mixture, where the gas-liquid mixture includes an aqueous solution and gases of different components. Figure 1 FIG is a schematic diagram of an apparatus for preparing a gas-liquid mixture according to an embodiment of the present application. Figure 1 As shown, the device 1 for preparing a gas-liquid mixture includes: a first type gas provider 10, a plurality of second type gas providers 20, a first type gas distribution assembly 30, a plurality of second type gas distribution assemblies 40, a plurality of first ampoules 50, a plurality of second ampoules 60 and an ampoule sealing machine 70; the first type gas provider 10 is configured to provide a first type of gas; the plurality of second type gas providers 20 are configured to provide a second type of gas of different components; the first type gas distribution assembly 30 is configured to distribute the first type of gas provided by the first type gas provider 10 to the plurality of first ampoules 50 and the plurality of second ampoules 60; the plurality of second type gas distribution assemblies 40 are configured to distribute the different components provided by the plurality of second type gas providers 20 The second type of gas is distributed to multiple second ampoules 60; multiple first ampoules 50 are configured to hold aqueous solutions and are configured to collect the first type of gas distributed by the first type of gas distribution component 30; multiple second ampoules 60 are configured to hold aqueous solutions and are configured to collect the first type of gas distributed by the first type of gas distribution component 30 and the second type of gas of different components distributed by the multiple second type of gas distribution components 40; the ampoule sealing machine 70 is configured to seal the multiple first ampoules 50 that collect the first type of gas and the multiple second ampoules 60 that collect the first type of gas and the second type of gas of different components; wherein the first type of gas is argon; the second type of gas is a mixture of argon and hydrogen or a mixture of argon and nitrogen.

[0027] In an embodiment of the present application, a first-class gas provider 10 and a plurality of second-class gas providers 20 are provided to provide gases of different components to a plurality of first ampoules 50 and a second ampoules 60. Compared with the conventional method of distributing gases separately, the device provided in the present application can simultaneously distribute gases to a plurality of first ampoules 50 and a second ampoules 60 through a first-class gas distribution component 30 and a plurality of second-class gas distribution components 40, thereby significantly improving the distribution efficiency of gases of different components, and thereby improving the efficiency of preparing gas-liquid mixtures of gases of different components and aqueous solutions.

[0028] The first type of gas is set to argon and distributed to the plurality of first ampoules 50 and the plurality of second ampoules 60 through the first type of gas distribution assembly 30 to remove oxygen in the plurality of first ampoules 50 and the plurality of second ampoules 60, thereby providing a gas-liquid mixture with oxygen removed for the aqueous solution radiation decomposition experiment.

[0029] The second type of gas is set to a mixture of argon and hydrogen or a mixture of argon and nitrogen, and is distributed to multiple second ampoules 60 through the second type of gas distribution assembly 40, so that the second type of gas with different components can be distributed to the multiple second ampoules 60 as needed, thereby providing gas-liquid mixtures with different hydrogen concentrations or different nitrogen concentrations for the aqueous solution radiation decomposition experiment, so that the simulated mixture can be closer to the actual mixture composition, so as to more accurately simulate the actual radiolysis process.

[0030] In some embodiments, the concentration of hydrogen in the second type of gas may be, for example, 8 μmol / L, 80 μmol / L, and 800 μmol / L.

[0031] In some embodiments, the nitrogen concentration in the second type of gas may be, for example, 5 μmol / L, 50 μmol / L, and 500 μmol / L.

[0032] In some embodiments, first type gas supply unit 10 includes a first type gas cylinder 11 and a cylinder valve 12. First type gas cylinder 11 is configured to contain compressed first type gas. Cylinder valve 12 is configured to connect to first type gas cylinder 11 to control the start and stop of gas supply from first type gas cylinder 11 and the flow rate of the first type gas during the gas supply process by opening and closing cylinder valve 12.

[0033] In some embodiments, the second type gas supply unit 20 includes a second type gas cylinder 21 and a cylinder valve 12. The second type gas cylinder 21 is configured to contain the second type gas in a compressed state. The cylinder valve 12 is configured to connect to the second type gas cylinder 21 to control the start and stop of the second type gas cylinder 21 supply process by opening and closing the cylinder valve 12, as well as the flow rate of the second type gas during the supply process.

[0034] In some embodiments, the first type gas distribution assembly 30 further includes: a first distribution pipeline 31 and multiple second distribution pipelines 32; one end of the first distribution pipeline 31 is detachably connected to the first type gas provider 10, and the other end of the first distribution pipeline 31 is connected to the multiple second distribution pipelines 32, so that the first type gas provided by the first type gas provider 10 flows into the multiple second distribution pipelines 32; one end of the multiple second distribution pipelines 32 is connected to the first distribution pipeline 31, and the other end of the multiple second distribution pipelines 32 is detachably connected to the multiple first ampoules 50 and the multiple second ampoules 60, so that the first type gas in the second distribution pipeline 32 flows into the multiple first ampoules 50 and the multiple second ampoules 60.

[0035] In the embodiment of the present application, the first distribution pipeline 31 and multiple second distribution pipelines 32 form a multi-stage distribution structure, allowing each second distribution pipeline 32 to operate independently. This ensures that if a single second distribution pipeline 32 fails, the other second distribution pipelines 32 can still maintain continuous gas distribution, thereby reducing the impact of the failure on the gas distribution efficiency of the first-type gas distribution assembly 30. Furthermore, the provision of multiple second distribution pipelines 32 reduces the gas pressure in each second distribution pipeline 32, thereby significantly improving the stability of the first-type gas distribution assembly 30.

[0036] In some embodiments, one end of the first distribution pipeline 31 is detachably connected to the gas cylinder valve 12 of the first type gas provider 10, and the other end of the first distribution pipeline 31 is connected to multiple second distribution pipelines 32, so that the first type gas provided by the first type gas provider 10 flows into the multiple second distribution pipelines 32.

[0037] In some embodiments, the structures of the plurality of second distribution pipelines 32 are consistent to ensure the uniformity of the flow rate, flow velocity and pressure of the first type of gas in each second distribution pipeline 32 , thereby ensuring the consistency of the gas components in the plurality of first ampoules 50 and second ampoules 60 .

[0038] In some embodiments, the number of second distribution pipelines 32 is set to the sum of the number of first type gas providers 10 and the number of second type gas providers 20. For example, the number of second distribution pipelines 32 can be set to 4, the number of first type gas providers 10 can be set to 1, and the number of second type gas providers 20 can be set to 3.

[0039] In some embodiments, the first distribution pipeline 31 includes: a first gas inlet pipeline 311 for the first type of gas, a first gas connecting pipeline 312 for the first type of gas, a plurality of first gas outlet pipelines 313 for the first type of gas, and a plurality of first gas first valves 314; the first gas inlet pipeline 311 for the first type of gas is connected to the first gas provider 10 so that the first gas provided by the first gas provider 10 flows into the first gas inlet pipeline 311 for the first type of gas; the first gas connecting pipeline 312 for the first type of gas is configured to connect the first gas inlet pipeline 311 for the first type of gas and the plurality of first gas outlet pipelines 313 for the first type of gas. The first type of gas in the first type of gas inlet pipeline 311 flows into multiple first type of gas first type of gas outlet pipelines 313; the multiple first type of gas first type of gas outlet pipelines 313 are connected to the multiple second distribution pipelines 32 so that the first type of gas in the first type of gas outlet pipelines 313 is distributed to the multiple second distribution pipelines 32; multiple first type of gas first valves 314 are arranged on the multiple first type of gas first type of gas outlet pipelines 313, and are configured to control the opening and closing of the multiple first type of gas first type of gas outlet pipelines 313, and control the flow rate of the first type of gas in the multiple first type of gas first type of gas outlet pipelines 313.

[0040] In the embodiment of the present application, the first-type gas first inlet pipeline 311, the first-type gas first connecting pipeline 312, and the multiple first-type gas first outlet pipelines 313 are interconnected, allowing each first-type gas first outlet pipeline 313 to operate independently. This ensures that if a single first-type gas first outlet pipeline 313 fails, the other first-type gas first outlet pipelines 313 can still maintain continuity in gas distribution, thereby reducing the impact of the failure on the gas distribution efficiency of the first distribution pipeline 31. Furthermore, the provision of multiple first-type gas first outlet pipelines 313 reduces the gas pressure within each first-type gas first outlet pipeline 313, thereby significantly improving the stability of the first-type gas first outlet pipeline 313. Furthermore, the provision of first-type gas first valves 314 on the first-type gas first outlet pipelines 313 effectively controls the opening and closing of each first-type gas first outlet pipeline 313 and the gas flow rate within each first-type gas first outlet pipeline 313, thereby achieving independent regulation of each first-type gas first outlet pipeline 313.

[0041] In some embodiments, the first type gas first inlet pipe 311 is disposed in the middle of the first type gas first connecting pipe 312 to ensure that the first type gas can be evenly distributed to each first type gas first outlet pipe 313 through the first type gas first connecting pipe 312 .

[0042] In some embodiments, the multiple first type gas first gas outlet pipelines 313 have the same size to ensure uniformity of the first type gas flow rate, flow velocity, and pressure in each first type gas first gas outlet pipeline 313 .

[0043] In some embodiments, the number of the first gas outlet pipelines is set to be the same as the number of the second distribution pipelines 32. For example, the number of the first gas outlet pipelines and the number of the second distribution pipelines 32 can be set to four.

[0044] In some embodiments, the first valve 314 for the first type of gas can be a ball valve to ensure rapid control of the opening and closing of the first gas outlet pipeline 313 for the first type of gas under high pressure and high gas flow rate conditions, thereby ensuring the stability of the first gas outlet pipeline 313 for the first type of gas.

[0045] In some embodiments, the second distribution pipeline 32 includes: a first-type gas second connecting pipeline 321, a plurality of first-type gas second gas outlet pipelines 322, and a plurality of first-type gas second valves 323; the first-type gas second connecting pipeline 321 is configured to connect the first-type gas first gas outlet pipeline 313 and the plurality of first-type gas second gas outlet pipelines 322, so that the first-type gas in the first-type gas outlet pipeline 313 flows into the plurality of first-type gas second gas outlet pipelines 322; the plurality of first-type gas second gas outlet pipelines 323 are connected to the first-type gas second connecting pipeline 321. The pipeline 322 and the multiple first ampoules 50 and the multiple second ampoules 60 are detachably connected so that the first type of gas in the multiple first type gas second gas outlet pipelines 322 is distributed to the multiple first type gas ampoules 50 and the multiple second ampoules 60; the multiple first type gas second valves 323 are arranged on the multiple first type gas second gas outlet pipelines 322, and are configured to control the opening and closing of the multiple first type gas second gas outlet pipelines 322, and control the flow rate of the first type gas in the multiple first type gas second gas outlet pipelines 322.

[0046] In the embodiment of the present application, the first-type gas second connecting pipeline 321 and the multiple first-type gas second outlet pipelines 322 are interconnected, allowing each first-type gas second outlet pipeline 322 to operate independently. This ensures that if a single first-type gas second outlet pipeline 322 fails, the other first-type gas second outlet pipelines 322 can still maintain continuous gas distribution, thereby reducing the impact of the failure on the gas distribution efficiency of the first-type gas second connecting pipeline 321. Furthermore, the provision of multiple first-type gas second outlet pipelines 322 reduces the gas pressure within each first-type gas second outlet pipeline 322, thereby significantly improving the stability of the first-type gas second outlet pipeline 322. Furthermore, the provision of first-type gas second valves 323 on the first-type gas second outlet pipelines 322 effectively controls the opening and closing of each first-type gas second outlet pipeline 322 and the gas flow rate within each first-type gas second outlet pipeline 322, thereby enabling independent regulation of each first-type gas second outlet pipeline 322.

[0047] In some embodiments, the total number of second outlet pipes 322 for the first type of gas in the second distribution pipe 32 is set to be the same as the total number of first ampoules 50 and second ampoules 60. For example, the number of second distribution pipes 32 can be set to four, and the number of second outlet pipes 322 for the first type of gas in each second distribution pipe 32 can be set to four. Accordingly, the number of first ampoules 50 can be set to four, and the number of second ampoules 60 can be set to twelve.

[0048] In some embodiments, the second valve 323 for the first type of gas can be a needle valve to achieve precise control of the flow rate of the first type of gas in the second outlet pipe 322 of the first type of gas, thereby improving the control accuracy of the gas components in the first ampoule 50 and the second ampoule 60, and then being able to flexibly adjust the gas components in multiple first ampoules 50 and second ampoules 60 according to the needs of the aqueous solution irradiation decomposition experiment.

[0049] In some embodiments, multiple second type gas distribution components 40 are connected to multiple second type gas providing components 20 in a one-to-one correspondence, so that each second type gas distribution component 40 distributes second type gas of different components, thereby achieving the effect of simultaneously preparing gas-liquid mixtures of multiple different gas components.

[0050] In some embodiments, the second type gas distribution assembly 40 includes: a second type gas inlet pipeline 41, a second type gas connecting pipeline 42, a plurality of second type gas outlet pipelines 43, a second type gas first valve 44 and a plurality of second type gas second valves 45; the second type gas inlet pipeline 41 is detachably connected to the second type gas provider 20 so that the second type gas provided by the second type gas provider 20 flows into the second type gas inlet pipeline 41; the connecting pipeline is configured to connect the second type gas inlet pipeline 41 and the plurality of second type gas outlet pipelines 43 so that the second type gas in the second type gas inlet pipeline 41 flows into the plurality of second type gas outlet pipelines Road 43; multiple second gas outlet pipes 43 are detachably connected to multiple second ampoules 60 to allow the second type of gas in the second gas outlet pipes 43 to flow into the multiple second ampoules 60; the second type of gas first valve 44 is arranged on the second type of gas inlet pipe 41, and is arranged to control the opening and closing of the second type of gas inlet pipe 41, and to control the flow rate of the second type of gas in the inlet pipe; multiple second type of gas second valves 45 are arranged on the multiple second type of gas outlet pipes 43, and are arranged to control the opening and closing of the multiple second type of gas outlet pipes 43, and to control the flow rate of the second type of gas in the multiple second type of gas outlet pipes 43.

[0051] In the embodiment of the present application, the second-type gas inlet pipeline 41, the second-type gas connecting pipeline 42, and the multiple second-type gas outlet pipelines 43 are interconnected, allowing each second-type gas outlet pipeline 43 to operate independently. This ensures that if a single second-type gas outlet pipeline 43 fails, the other second-type gas outlet pipelines 43 can still maintain continuity in gas distribution, thereby reducing the impact of the failure on the gas distribution efficiency of the second-type gas inlet pipeline 41. Furthermore, the provision of multiple second-type gas outlet pipelines 43 reduces the gas pressure in each second-type gas outlet pipeline 43, thereby significantly improving the stability of each second-type gas outlet pipeline 43. In addition, a second-type gas first valve 44 and multiple second-type gas second valves 45 are respectively provided on the second-type gas inlet pipeline 41 and multiple second-type gas outlet pipelines 43, which can effectively control the opening and closing of the second-type gas inlet pipeline 41 and each second-type gas outlet pipeline 43, as well as the gas flow in the second-type gas inlet pipeline 41 and each second-type gas outlet pipeline 43, thereby realizing multiple adjustments of the second-type gas flow and individual regulation of each second-type gas outlet pipeline 43.

[0052] In some embodiments, the second type gas inlet pipeline 41 is disposed in the middle of the second type gas communication pipeline 42 to ensure that the second type gas can be evenly distributed to each second type gas outlet pipeline 43 through the second type gas communication pipeline 42 .

[0053] In some embodiments, the total number of second type gas outlet pipes 43 of the second type gas distribution assembly 40 is set to be the same as the total number of second ampoules 60. For example, the number of second type gas distribution assemblies 40 can be set to 3, and the number of second type gas outlet pipes 43 of each second type gas distribution assembly 40 can be set to 4. Accordingly, the number of second ampoules 60 can be set to 12.

[0054] In some embodiments, the first valve 44 for the second type of gas can be a ball valve to ensure rapid control of the opening and closing of the second type of gas intake pipeline 41 under high pressure and high gas flow rate conditions, thereby ensuring the stability of the second type of gas intake pipeline 41.

[0055] In some embodiments, the second valve 45 for the second type of gas can be a needle valve to achieve precise control of the flow rate of the second type of gas in the second type of gas outlet pipeline 43, thereby improving the control accuracy of the gas components in the multiple second ampoules 60, and then being able to flexibly adjust the gas components in the multiple second ampoules 60 according to the needs of the aqueous solution irradiation decomposition experiment.

[0056] An embodiment of the present application further provides a method for preparing a gas-liquid mixture, using the device 1 for preparing a gas-liquid mixture provided in the first aspect of the present application, wherein the gas-liquid mixture includes an aqueous solution and gases of different components.

[0057] Figure 2 FIG. 1 is a flow chart of a method for preparing a gas-liquid mixture according to an embodiment of the present application. Figure 2 As shown, the method for preparing a gas-liquid mixture provided in an embodiment of the present application includes the following steps: S10: preparing an aqueous solution; S20: passing the aqueous solution in step S10 into a plurality of first ampoules 50 and a plurality of second ampoules 60; S30: starting the first type gas providing member 10, and filling the first type gas into the plurality of first ampoules 50 and the plurality of second ampoules 60 in step S20, to obtain a plurality of first ampoules 50 containing a gas-liquid mixture of the aqueous solution and the first type gas; S40 : Start multiple second-type gas providing components 20, and fill the multiple second ampoules 60 of step S30 with the second-type gases of different components to obtain multiple second ampoules 60 containing an aqueous solution, a first-type gas, and a gas-liquid mixture of different components of the second-type gases; S50: Start the ampoule sealing machine 70, and seal the multiple first ampoules 50 of step S30 and the multiple second ampoules 60 of step S40 to obtain an aqueous solution and a gas-liquid mixture of different components of the gases.

[0058] In an embodiment of the present application, a first type of gas is introduced into a plurality of first ampoules 50 and a plurality of second ampoules 60, thereby effectively removing oxygen from the plurality of first ampoules 50 and the plurality of second ampoules 60. The plurality of second ampoules 60, from which oxygen has been removed, are then filled with a second type of gas of different components, thereby obtaining a gas-liquid mixture of the second type of gas of different components and an aqueous solution. Simultaneously, an ampoule sealing machine 70 is used to seal the plurality of first ampoules 50 and the second ampoules 60, thereby enabling rapid packaging of the gas-liquid mixture of different gas components, thereby eliminating interference from impurities in the aqueous solution irradiation decomposition experimental environment.

[0059] In some embodiments, the aqueous solution occupies approximately two-thirds of the volume of the first ampoule 50 and the second ampoule 60. First, the reserved space buffers pressure fluctuations, while the gaseous space allows for full gas-liquid contact, promoting diffusion and equilibrium of radiolysis products and ensuring the dynamic stability of the reaction system. Second, sufficient space facilitates shaking the solution or sampling and analysis during the experiment, reducing operational errors. Finally, a suitable gas-liquid interface reduces interference from the interfacial effect between the ampoule wall and the solution on the reaction process, improving data accuracy. In summary, this design balances safety, reaction efficiency, and measurement accuracy, and is a typical strategy for controlling variables and optimizing conditions in radiolysis experiments.

[0060] In some embodiments, in step S10, the aqueous solution is a boron-lithium aqueous solution to simulate the liquid phase components of the coolant in the reactor.

[0061] In some embodiments, the boron ion concentration in the boron-lithium aqueous solution is 250ppm~1400ppm, and the lithium ion concentration is 0.5ppm~3.0ppm, so that the boron-lithium aqueous solution can accurately simulate the liquid phase components of the coolant in the reactor, thereby ensuring that the gas-liquid mixture of the boron-lithium aqueous solution and different gas components can truly simulate the actual working conditions of the coolant in the reactor.

[0062] In some preferred embodiments, the boron ion concentration is 1200 ppm and the lithium ion concentration is 2.2 ppm. In the coolant, the boron ion concentration of 1200 ppm is selected based on neutron absorption, reactor reactivity control and suppression of oxidative radiolysis products, and its key role is to maintain nuclear safety and reduce the risk of corrosion; while the lithium ion concentration of 2.2 ppm is selected based on pH adjustment, reduction of alkaline corrosion risk and synergistic optimization of the chemical environment with boron, and its key role is to extend the material life and stabilize the radiolysis reaction kinetics.

[0063] In some preferred embodiments, the boron ion concentration is 350 ppm and the lithium ion concentration is 1.5 ppm. In coolant radiolysis studies, for a systematic and comprehensive analysis, radiolysis studies at room temperature are required. Therefore, the boron and lithium concentrations are selected based on the coordination curve at the corresponding temperature. However, the selection criteria and effects of boron and lithium remain consistent with those at high temperatures.

[0064] In some embodiments, in step S30 , the filling time of the first type of gas is 25-40 minutes to ensure that oxygen in the plurality of first ampoules 50 and the second ampoules 60 is sufficiently removed.

[0065] In some preferred embodiments, the filling time of the first type of gas is 30 minutes to effectively remove oxygen from the plurality of first ampoules 50 and the second ampoules 60 while ensuring that the gas composition in the plurality of first ampoules 50 and the second ampoules 60 reaches a constant level.

[0066] In some embodiments, in step S40, the second type of gas with different components is filled for 25-40 minutes. For example, the second type of gas can be filled for 30 minutes to ensure that the gas components in the plurality of second ampoules 60 are constant.

[0067] In some embodiments, step S30 further includes determining the gas components in the gas-liquid mixture in the plurality of first ampoules 50 to ensure that oxygen in the plurality of first ampoules 50 is completely removed and that the gas components in the plurality of first ampoules 50 are consistent. For example, the gas components in the plurality of first ampoules 50 can be analyzed using a gas chromatograph to improve the accuracy of the gas component analysis.

[0068] In some embodiments, step S40 further includes determining the gas components of the gas-liquid mixture in the plurality of second ampoules 60 to ensure consistency of the gas components in the second ampoules 60 corresponding to each second type gas distribution assembly 40. For example, a gas chromatograph can be used to analyze the gas components in the plurality of second ampoules 60, thereby improving the accuracy of the gas component analysis.

[0069] The following is a specific example to further illustrate the process and method for preparing a gas-liquid mixture using the device in this application.

[0070] Sixteen clean and dry 50 ml ampoules are prepared, four ampoules are selected as first ampoules 50, and the remaining twelve ampoules are used as second ampoules 60. The twelve second ampoules 60 are divided into three groups of four.

[0071] Prepare a first gas supplier 10 for supplying argon gas and three second gas suppliers 20 for supplying a mixture of hydrogen and argon. The hydrogen concentrations of the mixed gases provided by the three second gas suppliers 20 are 8 μmol / L, 80 μmol / L, and 800 μmol / L, respectively.

[0072] Prepare a boron-lithium aqueous solution with a boron ion concentration of 1200 ppm and a lithium ion concentration of 2.2 ppm. Add 30 ml of the boron-lithium aqueous solution to each ampoule. Preliminarily seal the openings of the plurality of first ampoules 50 and the plurality of second ampoules 60 with sealing film.

[0073] The first type gas provider 10 is activated to purge the first and second distribution pipelines 31 and 32 with argon gas, removing contaminants from the first and second distribution pipelines 31 and 32. Simultaneously, the second type gas provider 20 is activated to purge the second type gas inlet pipeline 41, the second type gas connecting pipeline 42, and the second type gas outlet pipeline 43 with a mixture of hydrogen and argon gas, removing contaminants from the second type gas inlet pipeline 41, the second type gas connecting pipeline 42, and the second type gas outlet pipeline 43. After the purge is complete, the first type gas provider 10 and the second type gas provider 20 are closed.

[0074] The four first-type gas second outlet pipes 322 of one of the second distribution pipes 32 were inserted into the sealing membranes of four first ampoules 50, respectively. The twelve first-type gas second outlet pipes 322 of the remaining three second distribution pipes 32 were inserted into the sealing membranes of three groups of twelve second ampoules 60, respectively. The first-type gas supply unit 10 was activated, and argon was continuously supplied to the four first ampoules 50 and the twelve second ampoules 60 through the first distribution pipe 31 and the second distribution pipe 32. After 30 minutes of filling, the first-type gas supply unit 10 was turned off. The four first ampoules 50 were removed from the four first-type gas second outlet pipes 322, and the gaseous components of the gas-liquid mixture in the four first ampoules 50 were analyzed using a gas chromatograph to determine that the oxygen and hydrogen contents in the gas-liquid mixture had both dropped to 0.01%-0.1% (volume fraction).

[0075] The four first ampoules 50 are transferred to the ampoule sealing machine 70. The ampoule sealing machine 70 is started to seal the four first ampoules 50, and the gas-liquid mixture is kept with the oxygen content reduced to 0.01%-0.1% (volume fraction).

[0076] The 12 second ampoules 60 are switched and connected to the 12 second-type gas outlet pipes 43 of the three second-type gas distribution assemblies 40. The second-type gas supply component 20 is started, and a mixed gas with a hydrogen concentration of 8μmol / L, 80μmol / L, and 800μmol / L is respectively filled into the three groups of second ampoules 60 through the second-type gas distribution assembly 40. After 30 minutes of filling, the three second-type gas supply components 20 are turned off. The 12 second ampoules 60 are removed from the second-type gas outlet pipes 43, and the gas phase components of the gas-liquid mixture in the 12 second ampoules 60 are analyzed using a gas chromatograph. Based on the analysis results, the gas input can be adjusted, thereby achieving precise control of the gas components. Among them, the oxygen content of the gas-liquid mixture in the four second ampoules 60 is reduced to 0.01%-0.1% (volume fraction), and the hydrogen concentration is 8 μmol / L; the oxygen content of the gas-liquid mixture in the four second ampoules 60 is reduced to 0.01%-0.1% (volume fraction), and the hydrogen concentration is 80 μmol / L; the oxygen content of the gas-liquid mixture in the four second ampoules 60 is reduced to 0.01%-0.1% (volume fraction), and the hydrogen concentration is 800 μmol / L.

[0077] The 12 second ampoules 60 are transferred to the ampoule sealing machine 70. The ampoule sealing machine 70 is started to seal the 12 second ampoules 60 so as to maintain a gas-liquid mixture with an oxygen content of 0.01% to 0.1% (volume fraction) and a hydrogen concentration of 8 μmol / L, 80 μmol / L, and 800 μmol / L, respectively.

[0078] Regarding the embodiments of the present application, it should also be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other to obtain new embodiments.

[0079] The above are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. The protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A device for preparing a gas-liquid mixture, wherein the gas-liquid mixture comprises an aqueous solution and gases of different components, characterized in that: It includes: A first type of gas provider, a plurality of second type of gas providers, a first type of gas distribution assembly, a plurality of second type of gas distribution assemblies, a plurality of first ampoules, a plurality of second ampoules, and an ampoule sealing machine; The first type of gas providing component is configured to provide a first type of gas; A plurality of second-type gas providing members are configured to provide second-type gases with different components; The first type gas distribution assembly is configured to distribute the first type gas provided by the first type gas provider to a plurality of the first ampoules and a plurality of the second ampoules; a plurality of the second-type gas distribution assemblies configured to distribute the second-type gas of different components provided by the plurality of the second-type gas providers to the plurality of the second ampoules; a plurality of first ampoules configured to contain the aqueous solution and to collect the first type of gas distributed by the first type of gas distribution assembly; a plurality of second ampoules configured to contain the aqueous solution and configured to collect the first type of gas dispensed by the first type of gas distribution assembly and the second type of gas of different components dispensed by the plurality of second type of gas distribution assemblies; The ampoule sealing machine is configured to seal a plurality of first ampoules for collecting the first type of gas and a plurality of second ampoules for collecting the first type of gas and the second type of gas of different components; Wherein, the first type of gas is argon; The second type of gas is a mixture of argon and hydrogen or a mixture of argon and nitrogen.

2. The device according to claim 1, characterized in that The first type of gas distribution assembly further includes: a first distribution pipeline and a plurality of second distribution pipelines; One end of the first distribution pipeline is detachably connected to the first type gas provider, and the other end of the first distribution pipeline is connected to a plurality of second distribution pipelines, so that the first type gas provided by the first type gas provider flows into the plurality of second distribution pipelines; One end of the plurality of second distribution pipelines is connected to the first distribution pipeline, and the other end of the plurality of second distribution pipelines is detachably connected to the plurality of first ampoules and the plurality of second ampoules, so that the first type of gas in the second distribution pipeline flows into the plurality of first ampoules and the plurality of second ampoules.

3. The device according to claim 2, characterized in that The first distribution pipeline includes: a first gas inlet pipeline for the first type of gas, a first gas connecting pipeline for the first type of gas, a plurality of first gas outlet pipelines for the first type of gas, and a plurality of first gas first valves; The first gas inlet pipeline for the first type of gas is connected to the first gas provider so that the first type of gas provided by the first type of gas provider flows into the first gas inlet pipeline for the first type of gas; The first connecting pipeline for the first type of gas is configured to connect the first inlet pipeline for the first type of gas and a plurality of first outlet pipelines for the first type of gas, so that the first type of gas in the first inlet pipeline for the first type of gas flows into the plurality of first outlet pipelines for the first type of gas; A plurality of first gas outlet pipelines for the first type of gas are connected to a plurality of second distribution pipelines, so that the first type of gas in the first gas outlet pipelines for the first type of gas is distributed to the plurality of second distribution pipelines; Multiple first-type gas first valves are arranged on multiple first-type gas first outlet pipelines, and are configured to control the opening and closing of multiple first-type gas first outlet pipelines, and control the flow of the first-type gas in multiple first-type gas first outlet pipelines.

4. The device according to claim 3, characterized in that The second distribution pipeline includes: a second connecting pipeline for the first type of gas, a plurality of second outlet pipelines for the first type of gas, and a plurality of second valves for the first type of gas; The second connecting pipeline for the first type of gas is configured to connect the first outlet pipeline for the first type of gas and a plurality of second outlet pipelines for the first type of gas, so that the first type of gas in the first outlet pipeline for the first type of gas flows into the plurality of second outlet pipelines for the first type of gas; The plurality of second gas outlet pipes for the first type of gas are detachably connected to the plurality of first ampoules and the plurality of second ampoules, so that the first type of gas in the plurality of second gas outlet pipes for the first type of gas is distributed to the plurality of first ampoules and the plurality of second ampoules; Multiple first-type gas second valves are arranged on multiple first-type gas second gas outlet pipelines, and are configured to control the opening and closing of multiple first-type gas second gas outlet pipelines, and control the flow rate of the first-type gas in multiple first-type gas second gas outlet pipelines.

5. The device according to claim 1, characterized in that The plurality of second-type gas distribution assemblies are connected to the plurality of second-type gas providing components in a one-to-one correspondence.

6. The device according to claim 5, characterized in that The second type gas distribution assembly includes: a second type gas inlet pipeline, a second type gas connecting pipeline, a plurality of second type gas outlet pipelines, a second type gas first valve and a plurality of second type gas second valves; The second type gas inlet pipeline is detachably connected to the second type gas provider, so that the second type gas provided by the second type gas provider flows into the second type gas inlet pipeline; The connecting pipeline is configured to connect the second type gas inlet pipeline and the plurality of second type gas outlet pipelines, so that the second type gas in the second type gas inlet pipeline flows into the plurality of second type gas outlet pipelines; A plurality of second-type gas outlet pipelines are detachably connected to a plurality of second ampoules, so that the second-type gas in the second-type gas outlet pipelines flows into the plurality of second ampoules; The first valve for the second type of gas is provided on the second type of gas inlet pipeline and is configured to control the opening and closing of the second type of gas inlet pipeline and the flow rate of the second type of gas in the inlet pipeline; Multiple second valves for the second type of gas are provided on multiple second type of gas outlet pipelines, and are configured to control the opening and closing of the multiple second type of gas outlet pipelines, and control the flow rate of the second type of gas in the multiple second type of gas outlet pipelines.

7. A method for preparing a gas-liquid mixture, wherein the gas-liquid mixture comprises the aqueous solution and the gases of different components, characterized in that: The device for preparing the gas-liquid mixture according to any one of claims 1 to 6 comprises the following steps: S10: preparing the aqueous solution; S20: passing the aqueous solution of step S10 into a plurality of the first ampoules and a plurality of the second ampoules; S30: starting the first type of gas providing component to fill the first type of gas into the plurality of first ampoules and the plurality of second ampoules in step S20, to obtain a plurality of first ampoules containing a gas-liquid mixture of the aqueous solution and the first type of gas; S40: starting a plurality of second-type gas providing members to fill the plurality of second ampoules produced in step S30 with the second-type gas of different components, thereby obtaining a plurality of second ampoules containing a gas-liquid mixture of the aqueous solution, the first-type gas, and the second-type gas of different components; S50: starting the ampoule sealing machine to seal the plurality of first ampoules in step S30 and the plurality of second ampoules in step S40 to obtain a gas-liquid mixture of the aqueous solution and the gases of different components.

8. The method according to claim 7, characterized in that In step S10, the aqueous solution is a boron-lithium aqueous solution.

9. The method according to claim 8, characterized in that The boron ion concentration in the boron-lithium aqueous solution is 250ppm-1400ppm, and the lithium ion concentration is 0.5ppm-3.0ppm.

10. The method according to claim 7, characterized in that In step S30, the inflation time of the first type of gas is 25-40 minutes.

11. The method according to claim 7, characterized in that In step S40, the inflation time of the second type of gas with different components is 25-40 minutes.

12. The method according to claim 7, characterized in that In step S30, the method further includes: determining the gas components in the gas-liquid mixture in the plurality of first ampoules.

13. The method according to claim 7, characterized in that In step S40, the method further includes: determining the gas components in the gas-liquid mixture in the plurality of second ampoules.

Images