Liquid metal sampling device

Abstract

An embodiment of the present application provides a liquid metal sampling device, comprising: an operating box, a receiving container, a sealing cover and a cooling element. An operating space is defined inside the operating box. The receiving container defines a holding cavity for receiving liquid samples. The receiving container has an opening located at the top, a liquid inlet and a liquid outlet, wherein the height of the liquid outlet is higher than the height of the liquid inlet, and the opening of the receiving container is located in the operating space. The sealing cover is located in the operating space and is used to open or seal the opening. The cooling element is arranged on the outer surface of the upper peripheral wall of the receiving container, and the top of the cooling element is connected to the outer surface of the bottom wall of the operating box. The sampling device of the embodiment of the present application connects the top of the cooling element to the outer surface of the bottom wall of the operating box, so that the receiving container can be cooled while the operating box can also be cooled.

Description

Technical Field

[0001] The invention relates to the technical field of liquid metal sampling, and in particular to a liquid metal sampling device. Background Art

[0002] Liquid metal is widely used as a heat transfer medium in the fields of chemical industry, metallurgy, energy, medicine and nuclear energy. At high temperatures, the presence of oxygen, nitrogen, metal and non-metal impurities such as calcium and iron in liquid metal will affect its heat transfer performance and have adverse effects on the mechanical properties and corrosion resistance of structural materials. Therefore, it is necessary to measure carbon and oxygen impurities in liquid metal. Summary of the invention

[0003] The present application provides a liquid metal sampling device, which includes:

[0004] An operation box, an operation space is defined inside the operation box;

[0005] A receiving container, which defines a receiving cavity for receiving a liquid sample; the receiving container has an opening at the top, a liquid inlet for the liquid sample to flow into the receiving cavity, and a liquid outlet for the liquid sample to flow out of the receiving cavity, wherein the height of the liquid outlet is higher than the height of the liquid inlet, and the opening of the receiving container is located in the operating space;

[0006] a sealing cover, located in the operating space, for opening or sealing the opening; and

[0007] A cooling member is arranged on the outer surface of the upper peripheral wall of the receiving container, and the top of the cooling member is connected to the outer surface of the bottom wall of the operation box.

[0008] The sampling device of the embodiment of the present application connects the top of the cooling member to the outer surface of the bottom wall of the operation box, so that the operation box can be cooled while cooling the receiving container. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Other objects and advantages of the present invention will become apparent from the following description of the present invention with reference to the accompanying drawings, which will help to provide a comprehensive understanding of the present invention.

[0010] Figure 1 is a schematic structural diagram of a sampling device according to an embodiment of the present invention;

[0011] Figure 2 yes Figure 1 A schematic diagram of the partial structure of the sampling device shown;

[0012] Figure 3 is a schematic structural diagram of an anti-aerosol component according to an embodiment of the present invention; and

[0013] Figure 4 Schematic diagram of the structure of a sampler according to an embodiment of the present invention.

[0014] 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.

[0015] Description of reference numerals:

[0016] 11. receiving container; 110. containing chamber; 111. liquid inlet; 112. liquid outlet; 113. air inlet and outlet; 12. sealing cover; 13. aerosol-proof member; 131. main body; 132. mounting member; 14. cooling member; 15. liquid level meter; 16. liquid level measuring pipeline;

[0017] 20. Operation box; 201. Operation space; 202. Bottom wall; 203. First transition box; 204. Second transition box; 205. Operation hole; 21. Lifting member; 22. Sampler; 221. Main body; 222. Handle;

[0018] 31. First air inlet and outlet pipelines; 311. First valve; 312. Second valve; 313. Third valve; 32. Pressure measuring piece; 33. First vacuum pump; 34. First inert gas source; 41. Liquid inlet pipeline; 411. Liquid inlet valve; 42. Liquid outlet pipeline; 421. Liquid outlet valve. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiment is one embodiment of the present invention, not all embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in this application should have the common meanings understood by persons having ordinary skills in the field to which the invention belongs.

[0021] In the related art, there is a sampling device for online sampling of alkali metals. It is easy to understand that the online sampling here refers to the alkali metal in the alkali metal circuit being led out to the sampling device through a pipeline for sampling. In the related art, in order to prevent the alkali metal aerosol and heat from having an adverse effect on the operating box, a cooling element is provided on the outside of the alkali metal sampling component, and at the same time, a baffle and a spacer are provided in the inner cavity of the alkali metal sampling component to reduce the metal aerosol and heat transfer. However, in order to install the baffle and the spacer, the internal structure of the inner cavity of the alkali metal sampling component is complicated, which easily causes the alkali metal to be retained on the inner wall of the inner cavity.

[0022] The inventor of the present application found that if the cooling element is connected to the operation box, on the one hand, the operation box can be cooled to reduce the adverse effects of the liquid metal on the operation box, and on the other hand, the cooling effect can be improved because it is far away from the liquid metal, so that only one anti-aerosol element can be set to reduce metal aerosol and heat transfer. Therefore, the present application improves the alkali metal sampling device in the related art.

[0023] Figure 1 is a schematic structural diagram of a liquid metal sampling device according to an embodiment of the present invention; Figure 2 yes Figure 1 The schematic diagram of the partial structure of the sampling device shown. Figure 1 and Figure 2 The sampling device of the embodiment of the present invention includes: an operation box 20, a receiving container 11, a sealing cover 12 and a cooling member 14.

[0024] An operating space 201 is defined inside the operating box 20 .

[0025] The receiving container 11 defines a receiving cavity 110 for receiving a liquid sample. The receiving container 11 has an opening at the top, a liquid inlet 111 for the liquid sample to flow into the receiving cavity 110, and a liquid outlet 112 for the liquid sample to flow out of the receiving cavity 110. The height of the liquid outlet 112 is higher than the height of the liquid inlet 111, and the opening of the receiving container 11 is located in the operating space 201.

[0026] The sealing cover 12 is located in the operating space 201 and is used to open or seal the opening.

[0027] The cooling member 14 is disposed on the outer surface of the upper peripheral wall of the receiving container 11 , and the top of the cooling member 14 is connected to the outer surface of the bottom wall 202 of the operation box 20 .

[0028] The sampling device of the embodiment of the present application connects the top of the cooling member 14 to the outer surface of the bottom wall 202 of the operation box 20 , so that the operation box 20 can be cooled while cooling the receiving container 11 .

[0029] It is easy to understand that when the upper surface of the cooling member 14 is a plane extending along the horizontal plane, the entire upper surface of the cooling member 14 is in contact with the outer surface of the bottom wall 202 of the operation box 20 (i.e., the lower surface of the bottom wall 202), so as to better transfer the cold to the bottom wall 202 of the operation box 20. When the upper surface of the cooling member 14 is a curved surface, part of the curved surface is in contact with the outer surface of the bottom wall 202 of the operation box 20.

[0030] In the embodiment of the present application, since the cooling member 14 is disposed on the upper peripheral wall of the receiving container 11, the temperature of the upper peripheral wall of the receiving container 11 and the sealing cover 12 is relatively low, which is conducive to cooling and condensing the aerogel in the receiving cavity 110. Since the vapor pressure of the liquid metal is relatively low and the cooling member 14 is used, the liquid metal aerosol can be fully condensed in the cooling member 14 even if the temperature of the liquid metal is relatively high.

[0031] The cooling member 14 may be an annular cooling jacket. The cooling jacket has an inlet and an outlet for the flow of coolant, and the inlet and the outlet are respectively connected to the circulating cooling device through pipelines. Thus, the circulating coolant can be used to cool the operating box 20 and the receiving container 11. The coolant may be water or other common cooling media.

[0032] The sealing cover 12 may be a sealing flange, and the accommodating chamber 110 is sealed in the operation box 20 through the flange.

[0033] The sampling device may further include: an aerosol-proof member 13 . The aerosol-proof member 13 is disposed in the accommodating chamber 110 and at least partially located radially inward of the cooling member 14 , so as to reduce the generation of aerosol in the accommodating chamber 110 .

[0034] It is easy to understand that in some embodiments of the present application, the anti-aerosol member 13 can be entirely located radially inside the cooling member 14. That is, the uppermost end of the anti-aerosol member 13 is not higher than the uppermost end of the cooling member 14, and the lowermost end of the anti-aerosol member 13 is not lower than the lowermost end of the cooling member 14.

[0035] In other embodiments, a portion of the anti-aerosol member 13 is located radially inward of the cooling member 14, and the remaining portion extends to a position higher than the uppermost end of the cooling member 14 and / or lower than the lowermost end of the cooling member 14. Specifically, in some embodiments, the uppermost end of the anti-aerosol member 13 is higher than the uppermost end of the cooling member 14, and the lowermost end of the anti-aerosol member 13 is lower than the lowermost end of the cooling member 14. In other embodiments, the uppermost end of the anti-aerosol member 13 is higher than the uppermost end of the cooling member 14, and the lowermost end of the anti-aerosol member 13 is lower than the uppermost end of the cooling member 14 and higher than the lowermost end of the cooling member 14. In other embodiments, the lowermost end of the anti-aerosol member 13 is lower than the lowermost end of the cooling member 14, and the uppermost end of the anti-aerosol member 13 is lower than the uppermost end of the cooling member 14 and higher than the lowermost end of the cooling member 14.

[0036] Figure 3 FIG. 1 is a schematic diagram of the structure of an anti-aerosol member 13 according to an embodiment of the present invention. Figure 3 The anti-aerosol member 13 may include a body portion 131 and a mounting portion 132. The body portion 131 is located below the mounting portion 132. At least a portion of the body portion 131 is located radially inward of the cooling member 14.

[0037] In some embodiments, the diameter of the mounting portion 132 may be larger than the inner diameter of the accommodating chamber 110, so that the mounting portion 132 is suspended on a flange provided on the peripheral wall of the accommodating chamber 110. In some embodiments, the mounting portion 132 may also be installed at the opening of the receiving container 11. Thus, the operation is convenient and the structure of the accommodating chamber 110 is simple, without the need to additionally provide a flange structure for supporting the anti-aerosol member 13.

[0038] The diameter of the main body 131 is smaller than the inner diameter of the accommodating chamber 110, so that when the main body 131 is placed in the accommodating chamber 110, there is a gap between the main body 131 and the peripheral wall of the accommodating chamber 110. Since at least part of the main body 131 is located radially inward of the cooling member 14, the gap between the peripheral wall of the main body 131 and the peripheral wall of the accommodating chamber 110 is correspondingly located radially inward of the cooling member 14. Therefore, in the embodiment of the present application, since the anti-aerosol member 13 occupies a part of the space inside the accommodating chamber 110, a large amount of liquid metal aerosol can be prevented from being generated inside the accommodating chamber 110; and in the process of the aerosol moving upward along the above-mentioned gap, it can absorb the cold provided by the cooling member 14, liquefy on the peripheral wall of the receiving container 11 and the peripheral wall of the anti-aerosol member 13, and flow downward along the peripheral wall of the receiving container 11 and the peripheral wall of the anti-aerosol member 13 without penetrating into the operating space 201.

[0039] In some embodiments, the volume of the main body 131 of the anti-aerosol member 13 may occupy more than half of the space above the liquid outlet 112 (i.e., the space above the liquid metal surface) of the accommodating chamber 110. Since the main body 131 occupies more than half of the space above the liquid metal surface in the accommodating chamber 110, the generation of aerosols can be greatly reduced.

[0040] In some embodiments, a handle may be provided on the mounting portion 132 to facilitate manual removal of the anti-aerosol member 13 from the accommodating cavity 110 , or to facilitate removal of the anti-aerosol member 13 from the accommodating cavity 110 using a lifting member 21 as described below.

[0041] The aerosol-proof member 13 , the receiving container 11 and the sealing cover 12 can all be made of stainless steel. Thus, the cooling energy of the cooling member 14 can be transferred to the aerosol-proof member 13 and the sealing cover 12 through the peripheral wall of the receiving container 11 .

[0042] The embodiment of the present application sets the cooling member 14 to be connected to the operating box 20. On the one hand, it can cool the operating box 20 to prevent the bottom plate of the operating box 20 from overheating and reduce the adverse effects of liquid metal on the operating box 20. On the other hand, since it is far away from the liquid metal, the cooling effect can be improved, so that only one anti-aerosol member 13 is required to reduce metal aerosol and heat transfer.

[0043] In some embodiments, the bottom of the body 131 is a conical surface that tapers from top to bottom. The conical surface can play a role in guiding the flow, and can guide the metal aerosol to flow upward along the conical surface to the above-mentioned gap for cooling, after which part of the aerogel can be liquefied on the peripheral wall of the body 131, and flow downward along the peripheral wall of the body 131 to the conical surface, and gather at the lowest point of the conical surface, and then fall into the liquid.

[0044] In a further embodiment, the conical surface portion of the bottom of the aerosol prevention member 13 is located radially inward of the cooling member 14 , so as to improve the flow guiding effect of the conical surface and the cooling effect of the cooling member 14 .

[0045] In some embodiments, the operation box 20 may be provided with an operation hole 205 , which is sealed with a glove, and the operator may pass his hand through the operation hole 205 through the glove and perform operations inside the operation space 201 .

[0046] In some embodiments, the receiving container 11 has an air inlet and outlet 113 for gas to enter and exit the accommodating chamber 110 . The height of the air inlet and outlet 113 is higher than the height of the liquid outlet 112 , and the bottom of the cooling element 14 is higher than the height of the air inlet and outlet 113 .

[0047] The sampling device in the related art is provided with only one set of atmosphere adjustment components, that is, the atmosphere of the inner cavity of the operation box 20 and the alkali metal sampling component is adjusted by the same atmosphere adjustment component. Although such a setting can reasonably utilize resources (such as vacuum pumps and gas sources) by properly arranging the gas circuits, it is easy to cause misoperation problems because the gas circuits are arranged together. Since the atmospheres in the inner cavities of the operation box 20 and the alkali metal sampling component are not the same, misoperation will lead to serious adverse consequences.

[0048] Therefore, in some embodiments of the present application, the sampling device includes: a first atmosphere adjustment component and a second atmosphere adjustment component. The first atmosphere adjustment component is used to adjust the atmosphere in the containing chamber 110 . The second atmosphere adjustment component is used to adjust the atmosphere in the operating space 201 .

[0049] In some embodiments, the second atmosphere regulating component is independent from the first atmosphere regulating component. It is easy to understand that the term "independent" here means that the first atmosphere regulating component and the second atmosphere regulating component have neither common pipelines nor common air extraction or air filling equipment.

[0050] The sampling device of the embodiment of the present application is capable of independently adjusting the air pressure in the accommodating chamber 110 and the operating space 201 by providing two independent sets of atmosphere adjustment components for the accommodating chamber 110 and the operating space 201, thereby reducing the probability of operational errors and ensuring that the air pressures in the accommodating chamber 110 and the operating space 201 do not affect each other.

[0051] The first atmosphere adjustment assembly includes a first air inlet and outlet pipeline 31, a first vacuum pump 33, and a first inert gas source 34. The first air inlet and outlet pipeline 31 is connected to the air inlet and outlet port 113, and is used to supply gas to the accommodating chamber 110 or extract the gas in the accommodating chamber 110 when the sealing cover 12 seals the opening. The first vacuum pump 33 is connected to the first air inlet and outlet pipeline 31 through a second pipeline. The first vacuum pump 33 is configured to evacuate the air pressure in the accommodating chamber 110 to be substantially the same as the air pressure in the operating space 201 before opening the sealing cover 12. The substantially the same air pressure here can be understood as the air pressure difference between the air pressure in the accommodating chamber 110 and the air pressure in the operating space 201 does not exceed 20% of the air pressure in the operating space 201.

[0052] The first inert gas source 34 is connected to the first gas inlet and outlet pipeline 31 through the third pipeline. The first inert gas source 34 is configured to fill the accommodating chamber 110 with gas after the sealing cover 12 closes the opening so that the gas pressure in the accommodating chamber 110 reaches the working gas pressure. The working gas pressure here is substantially the same as the pressure in the liquid metal working circuit mentioned below. The pressure being substantially the same here can be understood as the pressure difference between the gas pressure in the accommodating chamber 110 and the pressure in the liquid metal working circuit does not exceed 20% of the pressure in the liquid metal working circuit.

[0053] A first valve 311 is provided on the first air inlet and outlet pipeline 31 to control the on and off of the first air inlet and outlet pipeline 31. A second valve 312 is provided on the second pipeline. A third valve 313 is provided on the third pipeline.

[0054] A pressure measuring piece 32 for measuring the air pressure in the accommodating chamber 110 is disposed on the first air inlet and outlet pipeline 31 .

[0055] In the related art, the pressure measuring member 32 is arranged in the operating space 201 of the operating box 20, which interferes with the operation in the operating space 201. Therefore, in the embodiment of the present application, the pressure measuring member 32 is arranged on the first air inlet and outlet pipes 31 outside the operating box 20, which can not only meet the needs of pressure monitoring, but also reduce the interference of the pressure measuring member 32 on the operation in the operating box 20.

[0056] In some embodiments, the second atmosphere adjustment assembly includes: a second inlet and outlet gas pipeline (not shown in the figure), a second vacuum pump (not shown in the figure) and a second inert gas source (not shown in the figure). The second inlet and outlet gas pipeline is used to supply gas to and from the operating space 201. The second vacuum pump is connected to the second inlet and outlet gas pipeline through a pipeline. The second inert gas source is connected to the second inlet and outlet gas pipeline through a pipeline.

[0057] In other embodiments, the first atmosphere regulating component and the second atmosphere regulating component may share an inert gas source, and the first atmosphere regulating component and the second atmosphere regulating component each use a different vacuum pump.

[0058] The second vacuum pump is used to evacuate the interior of the operation box 20. The second inert gas source is used to fill the interior of the operation box 20 with inert gas.

[0059] The first inert gas source 34 and the second inert gas source may be argon gas sources or helium gas sources.

[0060] It is easy to understand that when the operating box 20 is a commercially available glove box, the second atmosphere adjustment component can be a circulating purification device provided in the glove box. The operating space 201 of the operating box 20 can be circulated and purified by the second atmosphere adjustment component, for example, to purify water, oxygen, carbon dioxide, organic gas, etc.

[0061] In some embodiments, the box body of the operation box 20 is a sealed box body filled with argon gas. The front of the box body is a viewing window, the back of the box is an item rack, and the side of the box body is a first transition box 203 and a second transition box 204, which are used to transfer items in the operation box 20. The operation box 20 also includes a control system for controlling the atmosphere inside the operation box 20.

[0062] A lifting member 21 and a sampler 22 are provided inside the operation box 20 . The lifting member 21 is used to pull the sampler 22 to take a liquid sample from the containing chamber 110 .

[0063] The lifting member 21 is mounted on the top plate inside the operation box 20, and the lifting member 21 can be directly opposite to the opening of the receiving container 11. The lifting member 21 can include a traction rope with one end fixed and a hook located at the free end of the traction rope. The sampler 22 can be fixed on the hook, and as the traction rope extends into the receiving container 11 and immerses below the liquid metal surface, it then rises and returns to the operation box 20 under the traction of the traction rope. The traction rope can be a soft rope.

[0064] Figure 4 FIG. 2 is a schematic diagram of the structure of a sampler 22 according to an embodiment of the present invention. Figure 4 The sampler 22 of the embodiment of the present application may include: a body 221 and a handle 222 extending upward from the body 221 .

[0065] Since the sampler 22 does not need to be placed in the accommodating cavity 110 for a long time, no special material requirements are required for the sampler 22 .

[0066] In some embodiments, the operator may also hold the handle 222 to extract the liquid sample.

[0067] The sampling device further includes: a liquid inlet pipeline 41 and a liquid outlet pipeline 42. The liquid inlet pipeline 41 is connected to the liquid inlet 111 for supplying the liquid sample into the receiving chamber 110. The liquid outlet pipeline 42 is connected to the liquid outlet 112 for supplying the liquid sample out of the receiving chamber 110.

[0068] The liquid inlet pipeline 41 may be connected to the liquid metal working circuit, for example. The liquid inlet pipeline 41 is provided with a liquid inlet valve 411. When the liquid inlet valve 411 is opened, the liquid inlet pipeline 41 is conducted, and the liquid metal in the liquid metal working circuit flows to the liquid inlet pipeline 41; when the liquid inlet valve 411 is closed, the liquid inlet pipeline 41 is disconnected, and the liquid metal in the liquid metal working circuit stops flowing to the liquid inlet pipeline 41.

[0069] The flow rate of the metal can be adjusted by adjusting the opening of the liquid inlet valve 411. When the metal is sodium, the liquid inlet valve 411 can be a sodium regulating valve.

[0070] The liquid outlet pipeline 42 is used for the liquid metal in the accommodating chamber 110 to flow out. The liquid outlet pipeline 42 is provided with a liquid outlet valve 421. When the liquid outlet valve 421 is opened, the liquid outlet pipeline 42 is conducted, and the liquid metal in the accommodating chamber 110 flows out through the liquid outlet 112; when the liquid outlet valve 421 is closed, the liquid outlet pipeline 42 is disconnected, and the liquid metal in the accommodating chamber 110 stops flowing out through the liquid outlet 112.

[0071] The liquid outlet pipeline 42 may be in communication with the liquid metal working circuit, and is used to return the liquid metal flowing out of the accommodating chamber 110 to the liquid metal working circuit.

[0072] The sampling device may further include a liquid level meter 15 for detecting the liquid level of the liquid sample in the receiving chamber 110. The receiving container 11 also includes a liquid level measurement pipeline 16, which has two ports both connected to the receiving chamber 110, and the height of the liquid outlet 112 is located between the heights of the two ports of the liquid level measurement pipeline 16; the liquid level meter 15 is arranged in the liquid level measurement pipeline 16.

[0073] In some embodiments, the bottom of the receiving chamber 110 forms a funnel structure that tapers from top to bottom, and the liquid inlet 111 is located at the bottom of the funnel structure. Therefore, in some cases, the first inert gas source 34 can be used to fill the receiving chamber 110 with gas, and the gas pressure can be used to press the liquid sample in the receiving chamber 110 out of the receiving chamber 110 through the liquid inlet 111.

[0074] In some embodiments, a heater (not shown in the figure) is provided on the lower outer wall of the receiving container 11 to heat the receiving container 11 to ensure that the metal in the accommodating cavity 110 is in a liquid state. A temperature measuring element (not shown in the figure) is also provided on the lower outer wall of the receiving container 11 to measure the temperature of the lower outer wall of the receiving container 11 to control the operation of the heater and the cooling element 14 to prevent the cooling element 14 from being overcooled and the heater from being insufficiently heated or overheated.

[0075] The following takes the operation box 20 as a glove box as an example to briefly describe the method of sampling using the sampling device of the embodiment of the present invention.

[0076] a. Open the first valve 311 and the third valve 313, and use the first inert gas source 34 to fill the accommodating chamber 110 with gas, so that the pressure of the gas in the accommodating chamber 110 is substantially the same as the pressure in the liquid metal working circuit.

[0077] b. Open the liquid inlet valve 411 and the liquid outlet valve 421 to introduce the liquid in the liquid metal working circuit into the containing chamber 110.

[0078] c. Close the liquid inlet valve 411 and the liquid outlet valve 421 to keep the liquid metal in the receiving container 11 in a static state.

[0079] d. Turn on the circulating cooling device to cool the upper part of the receiving container 11 through the cooling member 14.

[0080] e. Turn on the power to start the glove box, start the vacuum pump, glove box circulation purification system, and water and oxygen detector of the glove box, and purify the water and oxygen content in the glove box to below 1μg / L; adjust the pressure in the glove box to 0.05MPa (slightly positive pressure).

[0081] f. Open the first valve 311 and the second valve 312, and use the first vacuum pump 33 to extract part of the gas in the receiving chamber 110 so that the pressure in the receiving chamber 110 is substantially the same as the pressure in the glove box, and then close the first vacuum pump 33.

[0082] g. Open the upper sealing cover 12 and use the lifting member 21 to take out the anti-aerosol member 13.

[0083] h. Use the lifting member 21 to immerse the sampler 22 into the receiving container 11.

[0084] i. Lift the sampler 22 out of the receiving container 11, and after the sample is cooled, transfer the sample out of the glove box through the second transition box 204.

[0085] j. Place the anti-aerosol member 13 back into the receiving container 11 and install the sealing cover 12.

[0086] k. Same as step a.

[0087] 1. Turn off the power supply of the glove box and the vacuum pump of the glove box; after the wall temperature of the receiving container 11 drops below 40° C., turn off the circulating cooling device.

[0088] The liquid metal sampling device provided in the embodiment of the present invention can be installed in the liquid metal working circuit and receive liquid samples under normal working conditions of the liquid metal. The liquid samples obtained are similar to the fluid dynamics state of the liquid metal working circuit. Since the sampling device adopts an inert gas glove box structure, it effectively avoids exposure damage to high-temperature liquid metal to workers and the influence of environmental factors on the sampling process, and can easily obtain representative samples.

[0089] Regarding the embodiments of the present invention, it should also be noted that, in the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to obtain new embodiments.

[0090] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. The protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A liquid metal sampling device, characterized in that: include: An operation box, an operation space is defined inside the operation box; A receiving container, which defines a receiving cavity for receiving a liquid sample; the receiving container has an opening at the top, a liquid inlet for the liquid sample to flow into the receiving cavity, and a liquid outlet for the liquid sample to flow out of the receiving cavity, wherein the height of the liquid outlet is higher than the height of the liquid inlet, and the opening of the receiving container is located in the operating space; A sealing cover, located in the operating space, for opening or sealing the opening; as well as A cooling member is arranged on the outer surface of the upper peripheral wall of the receiving container, and the top of the cooling member is connected to the outer surface of the bottom wall of the operation box; an anti-aerosol member, disposed in the accommodating cavity and at least partially located radially inward of the cooling member, for reducing the generation of aerosol in the accommodating cavity; The anti-aerosol member comprises: a body portion, the diameter of which is smaller than the inner diameter of the accommodating cavity, at least a portion of which is located radially inward of the cooling element; and A mounting portion, located above the main body, and used to be mounted at the opening of the receiving container or on the peripheral wall of the accommodating cavity; The bottom of the main body is a conical surface that tapers from top to bottom, and the conical surface portion is located radially inward of the cooling element; Wherein, the aerosol-proof component, the receiving container and the sealing cover are all made of stainless steel.

2. The sampling device according to claim 1, characterized in that: The volume of the main body occupies more than one half of the space of the accommodating cavity above the liquid outlet.

3. The sampling device according to claim 1, characterized in that: The receiving container has a gas inlet and outlet for gas to enter and exit the accommodating cavity. Wherein, the height of the air inlet and outlet is higher than the height of the liquid outlet, and the bottom of the cooling element is higher than the height of the air inlet and outlet.

4. The sampling device according to claim 3, characterized in that: Also includes: A first atmosphere adjustment component, used for adjusting the atmosphere in the containing chamber; and The second atmosphere adjustment component is used to adjust the atmosphere in the operating space.

5. The sampling device according to claim 4, characterized in that: The first atmosphere adjustment component comprises: A first air inlet and outlet pipeline connected to the air inlet and outlet; a first vacuum pump connected to the first air inlet and outlet pipes through a pipe, and configured to pump the air pressure in the containing chamber to be substantially the same as the air pressure in the operating space before opening the sealing cover; and The first inert gas source is connected to the first gas inlet and outlet pipelines through pipelines, and is configured to fill the containing cavity with gas after the sealing cover closes the opening so that the gas pressure in the containing cavity reaches the working gas pressure.

6. The sampling device according to claim 5, characterized in that: The first air inlet and outlet pipes are provided with a pressure measuring piece for measuring the air pressure in the accommodating chamber.

7. The sampling device according to claim 6, characterized in that: The second atmosphere regulating component comprises: A second gas inlet and outlet pipeline, used for supplying gas into and out of the operating space; A second vacuum pump connected to the second air inlet and outlet pipelines through pipelines; and The second inert gas source is connected to the second gas inlet and outlet pipelines through pipelines.

8. The sampling device according to claim 1, characterized in that: The bottom of the accommodating cavity forms a funnel structure which tapers from top to bottom, and the liquid inlet is located at the bottom of the funnel structure.

9. The sampling device according to claim 1, characterized in that: The operation box is provided with a lifting piece and a sampler inside. The lifting member is used for pulling the sampler to take the liquid sample from the containing chamber.

10. The sampling device according to claim 1, characterized in that: Also includes: a liquid inlet pipeline connected to the liquid inlet for supplying the liquid sample into the containing chamber; and a liquid outlet pipeline connected to the liquid outlet for supplying the liquid sample out of the containing chamber.

11. The sampling device according to claim 1, characterized in that: Also included is a liquid level meter for detecting the liquid level of the liquid sample in the containing cavity; The receiving container further comprises a liquid level measuring pipeline having two ports both communicating with the containing cavity, and the height of the liquid outlet is located between the heights of the two ports of the liquid level measuring pipeline; The liquid level meter is arranged in the liquid level measurement pipeline.

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