Device for measuring the level of liquid metal and method for measuring the level of liquid metal

Abstract

The embodiment of the invention relates to the technical field of liquid level measurement, in particular to a device for measuring the liquid level of liquid metal and a method for measuring the liquid level of the liquid metal, and the device comprises a driving assembly which is used for driving a measuring assembly to move so as to enable the measuring assembly to be close to or away from the liquid metal; the measuring assembly is arranged to generate different loop signals according to different depths of the measuring assembly in the liquid metal; the control assembly is used for controlling driving parameters of the driving assembly so that the driving assembly can drive the measuring assembly to move in different directions, and displacement information of the measuring assembly or stepping information of the driving assembly is obtained in the process that the driving assembly drives the measuring assembly to move. And the liquid level change of the liquid metal is determined according to the displacement information or the stepping information. According to the device, the liquid level of the liquid metal can be continuously measured, the condition of the liquid metal can be known in time, the safety of a container or a facility is guaranteed, and the device has high anti-interference performance.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of liquid level measurement technology, and specifically to a device for measuring the liquid level of liquid metal and a method for measuring the liquid level of liquid metal. Background Art

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

[0003] In the field related to high-temperature liquid metals, sodium, sodium-potassium alloy, lithium, lead, lead-bismuth, lead-lithium alloy, tin, tin-bismuth alloy, gallium, indium, gallium-indium alloy and other liquid metals are commonly used thermal conductors. For test devices using these liquid metals as thermal conductors, the liquid level of the liquid metal is an important measurement parameter used to characterize the overall operation of the test device. For example, if the liquid metal level drops rapidly, it indicates that the test device may have a large rupture and a working fluid leak; if the liquid metal level rises, it indicates that the valve of the test device may have internal leakage or pressure deviation.

[0004] Therefore, in order to understand the overall operation of the test device, it is very important to measure the liquid level of the liquid metal in the test device, but the current liquid level measurement method has many shortcomings. Summary of the invention

[0005] A brief overview of the present application is provided below in order 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 the key or important parts of the present application, nor is it intended to limit the scope of the present application. Its purpose is merely to present certain concepts in a simplified form as a prelude to a more detailed description discussed later.

[0006] In a first aspect, an embodiment of the present application provides a device for measuring the liquid level of liquid metal, comprising: a measuring component, a driving component and a control component, wherein the driving component is used to drive the measuring component to move so that the measuring component is close to or away from the liquid metal; the measuring component is configured to generate different loop signals according to its different depths in the liquid metal; the control component is used to control the driving parameters of the driving component so that the driving component drives the measuring component to move in different directions, and is configured to obtain displacement information of the measuring component or step information of the driving component during the process of the driving component driving the measuring component to move, so as to determine the level change of the liquid metal based on the displacement information or step information.

[0007] The measuring device provided in the embodiment of the present application can determine the change in the liquid level of the liquid metal according to the loop signal generated by the measuring component through the mutual cooperation between the driving component, the measuring component and the control component. Then the control component automatically controls the driving component to drive the measuring component to move according to the different loop signals received to determine the change in the liquid level of the liquid metal. This is conducive to achieving the purpose of continuous measurement of the liquid level of the liquid metal under high temperature conditions, thereby helping to timely understand the situation of the liquid metal to ensure the safety of the container or facility. At the same time, it can also improve the reliability and durability of the measuring device. It has a wide range of application scenarios and strong anti-interference ability.

[0008] In the second aspect, an embodiment of the present application also provides a method for measuring the liquid level of liquid metal, comprising the following steps: S1, determining a first loop signal formed by the liquid metal and the measuring component; S2, sending the first loop signal determined in step S1 to the control component; S3, after the control component receives the first loop signal, sending a first control instruction to the drive component to use the drive component to drive the measuring component to move until a second loop signal is generated; S4, after the control component receives the second loop signal, sending a second control instruction to the drive component to control the drive component to stop driving; S5, determining the liquid level change of the liquid metal according to the displacement information of the measuring component or the step information of the drive component.

[0009] These and other advantages of the present application will become more apparent through the following detailed description of the preferred embodiments of the present application in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to further illustrate the above and other advantages and features of the present application, the specific embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. The accompanying drawings together with the following detailed description are included in this specification and form a part of this specification. Elements with the same function and structure are represented by the same reference numerals. It should be understood that these drawings only describe typical examples of the present application and should not be regarded as limiting the scope of the present application.

[0011] Figure 1 is a schematic structural diagram of a device for measuring the liquid level of liquid metal according to an embodiment of the present application;

[0012] Figure 2 It is a schematic flow chart of a method for measuring the liquid level of liquid metal according to an embodiment of the present application.

[0013] 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.

[0014] Description of reference numerals:

[0015] 10. Measuring device;

[0016] 11. driving component; 12. measuring component; 121. first measuring member; 1211. first conductive part; 1212. first insulating part; 122. second measuring member; 1221. second conductive part; 1222. second insulating part; 13. control component; 14. supporting member; 141. mounting channel;

[0017] 20. solution container; 21. opening;

[0018] 30. Liquid metal. DETAILED DESCRIPTION

[0019] Exemplary embodiments of the present application will be described below in conjunction with the accompanying drawings. For the sake of clarity and conciseness, not all features of the actual implementation 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 from implementation to implementation. In addition, it should be understood that although the development work may be very complex and time-consuming, it is only a routine task for those skilled in the art who benefit from the content of this application.

[0020] It is also necessary to explain here that, in order to avoid obscuring the present application due to unnecessary details, only the device structure and / or processing steps closely related to the scheme according to the present application are shown in the accompanying drawings, while other details that are not very relevant to the present application are omitted.

[0021] 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 with ordinary skills in the field to which this application belongs.

[0022] In the description of the embodiments of the present application, “plurality” means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0023] Since the environment in which liquid metal is located is a high-temperature environment, and liquid metal has characteristics such as opacity and easy compatibility with materials, the liquid level meter in the related technology often cannot meet the needs of liquid level measurement in this application scenario. For example, radar level meter has high requirements for the use environment and cannot be used in high-temperature environments; contact level meter cannot achieve continuous measurement of liquid level, and is prone to frequent false alarms after long-term use.

[0024] In order to solve the above technical problems, an embodiment of the present application provides a device for measuring the liquid level of liquid metal. Figure 1is a schematic diagram of the structure of a device for measuring the liquid level of liquid metal (hereinafter referred to as a measuring device) according to an embodiment of the present application, such as Figure 1 As shown, the measuring device 10 includes: a measuring component 12 , a driving component 11 and a control component 13 .

[0025] The driving component 11 is used to drive the measuring component 12 to move so that the measuring component 12 is close to or away from the liquid metal 30 .

[0026] The measuring assembly 12 is configured to generate different loop signals according to the different depths of the measuring assembly 12 in the liquid metal 30 .

[0027] The control component 13 is used to control the driving parameters of the driving component 11 so that the driving component 11 drives the measuring component 12 to move in different directions, and is configured to obtain the displacement information of the measuring component 12 or the step information of the driving component 11 during the process of the driving component 11 driving the measuring component 12 to move, so as to determine the liquid level change of the liquid metal 30 according to the displacement information or the step information.

[0028] The measuring device 10 provided in the embodiment of the present application can determine the change in the liquid level of the liquid metal 30 according to the loop signal generated by the measuring component 12 through the mutual cooperation between the driving component 11, the measuring component 12 and the control component 13. Then the control component 13 automatically controls the driving component 11 to drive the measuring component 12 to move according to the different loop signals received to determine the change in the liquid level of the liquid metal 30, which is conducive to achieving the purpose of continuous measurement of the liquid level of the liquid metal 30 under high temperature conditions, thereby helping to timely understand the situation of the liquid metal 30 to ensure the safety of the container or facility. At the same time, it can also improve the reliability and durability of the measuring device 10, and has a wide range of application scenarios and strong anti-interference ability.

[0029] In some embodiments, the measuring device 10 further includes a support member 14 for supporting the measuring component 12 and the control component 13, so that the measuring component 12 can extend into the solution container 20 for containing the liquid metal 30, thereby contacting the liquid metal 30. The solution container 20 is formed with an opening 21, and the support member 14 is disposed at the opening 21 to seal the solution container 20.

[0030] In some embodiments, the support member 14 is formed with a mounting channel 141 , and the measuring component 12 is disposed in the mounting channel 141 and is configured to be able to move relative to the mounting channel 141 when driven by the driving component 11 .

[0031] In some embodiments, the drive assembly 11 may be a servo motor.

[0032] In some embodiments, Figure 1As shown, the measuring component 12 includes a first measuring piece 121 and a second measuring piece 122, wherein a predetermined height difference is provided between two ends of the first measuring piece 121 and the second measuring piece 122 on the same side, and the first measuring piece 121 is located above the liquid surface of the liquid metal 30, and the second measuring piece 122 is located below the liquid surface of the liquid metal 30; the first measuring piece 121 is used to generate a closed-loop signal when in contact with the liquid surface of the liquid metal 30; the second measuring piece 122 is used to generate an open-loop signal when the contact with the liquid surface of the liquid metal 30 is broken; wherein the loop signal includes a closed-loop signal and an open-loop signal.

[0033] The embodiment of the present application configures the measuring component 12 to include a first measuring piece 121 and a second measuring piece 122 with a predetermined height difference. Through the height difference between the first measuring piece 121 and the second measuring piece 122, different loop signals can be generated when the liquid level of the liquid metal 30 rises and falls, respectively, so as to achieve continuous measurement of the liquid level with relatively high reliability.

[0034] In some embodiments, when the liquid level of the liquid metal 30 does not change, the circuit corresponding to the first measuring member 121 is open. If the liquid level rises until it contacts the first measuring member 121, the circuit corresponding to the first measuring member 121 is closed, thereby generating a closed loop signal.

[0035] In such an embodiment, when the liquid level of the liquid metal 30 does not change, the circuit corresponding to the second measuring member 122 is a closed circuit. If the liquid level drops until it breaks contact with the second measuring member 122, the circuit corresponding to the second measuring member 122 is an open circuit, thereby generating an open circuit signal.

[0036] In some embodiments, the first measuring member 121 includes a first conductive portion 1211 and a first insulating portion 1212, the first conductive portion 1211 is surrounded by the first insulating portion 1212, the first end of the first conductive portion 1211 is connected to the control component 13, and the second end of the first conductive portion 1211 is close to the liquid surface of the liquid metal 30 and is located above the liquid surface of the liquid metal 30, and is used to generate a closed loop signal when in contact with the liquid surface of the liquid metal 30 and send it to the control component 13; the second measuring member 122 includes the second conductive portion 122 1 and a second insulating portion 1222, the second conductive portion 1221 is surrounded by the second insulating portion 1222, the first end of the second conductive portion 1221 is connected to the control component 13, the second end of the second conductive portion 1221 is close to the liquid surface of the liquid metal 30 and is located below the liquid surface of the liquid metal 30, and is used to generate an open circuit signal when the contact with the liquid surface of the liquid metal 30 is broken and sent to the control component 13; wherein, there is a predetermined height difference between the second end of the first conductive portion 1211 and the second end of the second conductive portion 1221.

[0037] The embodiment of the present application utilizes the first insulating portion 1212 and the second insulating portion 1222 to respectively surround the first conductive portion 1211 and the second conductive portion 1221, which is beneficial to avoid the influence of interference signals generated by the contact between the first conductive portion 1211 and the second conductive portion 1221 on the generated loop signal, so as to ensure the accuracy and reliability of the liquid level measurement results.

[0038] In some embodiments, the material of the first conductive portion 1211 and the second conductive portion 1221 may be a refractory metal, for example, a metal having a melting point greater than 900° C.

[0039] In some embodiments, the first insulating portion 1212 and the second insulating portion 1222 may be integrally formed.

[0040] In some embodiments, the predetermined height difference is within the range of 2-5 mm to ensure that when the liquid level of the liquid metal 30 changes, the first measuring member 121 and the second measuring member 122 can respond in time.

[0041] In some embodiments, the control component 13 is configured to: when receiving a closed-loop signal, control the drive component 11 to drive the measuring component 12 away from the liquid metal 30 until the closed-loop signal disappears, and obtain the first displacement information of the measuring component 12 or the first step information of the drive component 11.

[0042] In the embodiment of the present application, when the control component 13 receives a closed-loop signal, it indicates that the liquid level of the liquid metal 30 has risen. At this time, the control component 13 can automatically control the drive component 11 to start working, so as to use the drive component 11 to drive the measuring component 12 away from the liquid metal 30 until the closed-loop signal disappears, and obtain the first displacement information of the measuring component 12 during the movement or the first step information of the drive component 11. This process can realize real-time and automatic response without the participation of operators, thereby realizing continuous measurement of the liquid level rise height.

[0043] In some embodiments, the measuring component 12 has a function of stroke measurement feedback, and the first insulating portion 1212 or the second insulating portion 1222 may be provided with a scale, and the first displacement information of the measuring component 12 may be determined by the change of the scale.

[0044] In some embodiments, the first step information of the driving component 11 can be automatically obtained.

[0045] In some embodiments, the control component 13 is further configured to determine the liquid level change of the liquid metal 30 according to the first displacement information or the first step information to ensure the accuracy of the liquid level measurement result.

[0046] In some embodiments, the control component 13 is configured to: when receiving an open-loop signal, control the drive component 11 to drive the measuring component 12 to approach the liquid metal 30 until the open-loop signal disappears, and then obtain the second displacement information of the measuring component 12 or the second step information of the drive component 11.

[0047] In the embodiment of the present application, when the control component 13 receives an open-loop signal, it indicates that the liquid level of the liquid metal 30 has dropped. At this time, the control component 13 can automatically control the drive component 11 to start working, so as to use the drive component 11 to drive the measuring component 12 close to the liquid metal 30 until the open-loop signal disappears, and obtain the second displacement information of the measuring component 12 during the movement or the second step information of the drive component 11. This process can realize real-time and automatic response without the participation of operators, thereby realizing continuous measurement of the height of the liquid level drop.

[0048] In some embodiments, the second displacement information and the second step information may be obtained in a manner similar to the manner of obtaining the first displacement information and the first step information, which will not be described in detail herein.

[0049] In some embodiments, the control component 13 is further configured to determine the liquid level change of the liquid metal 30 according to the second displacement information or the second step information to ensure the accuracy of the liquid level measurement result.

[0050] In some embodiments, the measuring device 10 may further include an output component for outputting a numerical value of a liquid level change of the liquid metal 30 . For example, the output component may be a display.

[0051] The embodiment of the present application also provides a method for measuring the liquid level of the liquid metal 30. Figure 2 is a schematic flow chart of a method for measuring the liquid level of liquid metal 30 according to an embodiment of the present application, such as Figure 2 As shown, the method includes the following steps S1 to S5.

[0052] S1 . Determine a first loop signal formed by the liquid metal 30 and the measuring component 12 .

[0053] S2. Send the first loop signal determined in step S1 to the control component 13.

[0054] S3. After receiving the first loop signal, the control component 13 sends a first control instruction to the driving component 11, so as to use the driving component 11 to drive the measuring component 12 to move until a second loop signal is generated.

[0055] S4. After receiving the second loop signal, the control component 13 sends a second control instruction to the driving component 11 to control the driving component 11 to stop driving.

[0056] S5 . Determine the liquid level change of the liquid metal 30 according to the displacement information of the measuring component 12 or the step information of the driving component 11 .

[0057] The method provided in the embodiment of the present application uses the control component 13 to automatically send a first control instruction to the drive component 11 based on the first loop signal formed by the liquid metal 30 and the measuring component 12, so as to use the drive component 11 to drive the measuring component 12 to move until the second loop signal is generated and the drive is stopped, and then the liquid level change of the liquid metal 30 is determined based on the displacement information of the measuring component 12 or the step information of the drive component 11. Based on the automatic response to different loop signals, continuous measurement of the liquid level of the liquid metal 30 under high temperature can be achieved, which helps to timely understand the situation of the liquid metal 30 to ensure the safety of the container or facility, and the application scenarios are relatively wide.

[0058] In some embodiments, the first loop signal includes a first closed loop signal and a first open loop signal. In step S1, it includes: S11, when the liquid level of the liquid metal 30 rises and contacts the measuring component 12, determine to generate the first closed loop signal; S12, when the liquid level of the liquid metal 30 drops and breaks contact with the measuring component 12, determine to generate the first open loop signal.

[0059] The method provided in the embodiment of the present application reflects the level change of the liquid metal 30 by generating different loop signals, and has high reliability.

[0060] In some embodiments, the first control instruction includes an up instruction or a down instruction. When the liquid level of the liquid metal 30 rises and contacts the measuring component 12, the first control instruction is an up instruction; when the liquid level of the liquid metal 30 drops and disconnects from the measuring component 12, the first control instruction is a down instruction.

[0061] In some embodiments, the second control instruction is a stop instruction.

[0062] In some embodiments, when the first loop signal is a first closed loop signal, step S3 includes: sending a first control instruction to the drive component 11 to use the drive component 11 to drive the measuring component 12 away from the liquid metal 30 until a second open loop signal is generated, wherein the second loop signal includes a second open loop signal.

[0063] The method provided in the embodiment of the present application can realize real-time and automatic response without the involvement of operators, thereby achieving continuous measurement of the height of the liquid level rise.

[0064] In some embodiments, when the driving component 11 is controlled to drive the measuring component 12 away from the liquid metal 30 , the disappearance of the closed loop signal can be understood as the generation of a second open loop signal in the loop at this time.

[0065] In some embodiments, when the first loop signal is a first open loop signal, step S3 includes: sending a first control instruction to the drive component 11 to use the drive component 11 to drive the measuring component 12 to approach the liquid metal 30 until a second closed loop signal is generated, wherein the second loop signal includes a second closed loop signal.

[0066] The method provided in the embodiment of the present application can realize real-time and automatic response without the involvement of operators, thereby achieving continuous measurement of the height of the liquid level drop.

[0067] In some embodiments, when the driving component 11 is controlled to drive the measuring component 12 to approach the liquid metal 30 , the disappearance of the open-loop signal can be understood as: at this time, a second closed-loop signal is generated in the loop.

[0068] The following describes in detail the process of measuring the liquid level of the liquid metal 30 using the measuring device 10 of the embodiment of the present application through a specific embodiment.

[0069] Example 1

[0070] After the measuring device 10 is installed and initialized to zero, it can be used. It can also be understood that the measuring device 10 can be used after being installed and calibrated. When the liquid metal 30 enters the solution container 20, as the liquid level rises, it contacts the first conductive part 1211 of the first measuring member 121 to form a closed loop signal and sends it to the control component 13. After receiving the closed loop signal, the control component 13 sends an up command to the drive component 11. The drive component 11 drives the measuring component 12 to rise. After the second end of the first conductive part 1211 of the first measuring member 121 rises above the liquid level to form an open loop signal, the control component 13 receives the open loop signal and sends a stop command to the drive component 11. After the drive component 11 feeds back its step information to the control component 13, the value of the liquid level change can be displayed on the output component after being converted by the control component 13.

[0071] When the liquid level drops, the second end of the second conductive part 1221 of the second measuring member 122 separates from the liquid surface to form an open circuit signal. After receiving the open circuit signal, the control component 13 sends a down command to the drive component 11. The drive component 11 drives the measuring component 12 to drop. When the second end of the second conductive part 1221 of the second measuring member 122 drops to contact the liquid surface, a closed loop signal is formed and sent to the control component 13. After receiving the signal, the control component 13 sends a stop command to the drive component 11. After receiving the stop command, the drive component 11 stops and locks. After the drive component 11 feeds back its step information to the control component 13, the value of the liquid level change can be displayed on the output component after conversion by the control component 13.

[0072] Example 2

[0073] After the measuring device 10 is installed and initialized, it can be used. When the liquid metal 30 enters the solution container 20, as the liquid level rises, it contacts the first conductive part 1211 of the first measuring member 121 to form a closed loop signal and sends it to the control component 13. After receiving the closed loop signal, the control component 13 sends an up command to the drive component 11. The drive component 11 drives the measuring component 12 to rise. After the second end of the first conductive part 1211 of the first measuring member 121 rises above the liquid level to form an open loop signal, the control component 13 receives the open loop signal and sends a stop command to the drive component 11. After the measuring component 12 feeds back the displacement information to the control component 13 through stroke measurement, the value of the liquid level change can be displayed on the output component after conversion by the control component 13.

[0074] When the liquid level drops, the second end of the second conductive part 1221 of the second measuring member 122 separates from the liquid surface to form an open circuit signal. After receiving the open circuit signal, the control component 13 sends a down command to the drive component 11. The drive component 11 drives the measuring component 12 to drop. When the second end of the second conductive part 1221 of the second measuring member 122 drops to contact the liquid surface, a closed loop signal is formed and sent to the control component 13. After receiving the signal, the control component 13 sends a stop command to the drive component 11. After receiving the stop command, the drive component 11 stops and locks. After the measuring component 12 feeds back the displacement information to the control component 13 through stroke measurement, the value of the liquid level change can be displayed on the output component after conversion by the control component 13.

[0075] 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.

[0076] The above description is only a specific implementation manner 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 measuring the liquid level of liquid metal, characterized in that: It includes: a measuring component, a driving component and a control component, wherein: The driving component is used to drive the measuring component to move so that the measuring component is close to or away from the liquid metal; The measuring component is configured to generate different loop signals according to the different depths of the measuring component in the liquid metal; The control component is used to control the driving parameters of the driving component so that the driving component drives the measuring component to move in different directions, and is configured to obtain displacement information of the measuring component or step information of the driving component during the process of the driving component driving the measuring component to move, so as to determine the liquid level change of the liquid metal according to the displacement information or the step information.

2. The device according to claim 1, characterized in that The measuring assembly includes a first measuring piece and a second measuring piece, wherein: There is a predetermined height difference between two ends of the first measuring member and the second measuring member located on the same side, and the first measuring member is located above the liquid surface of the liquid metal, and the second measuring member is located below the liquid surface of the liquid metal; The first measuring member is used to generate a closed loop signal when in contact with the liquid surface of the liquid metal; The second measuring member is used to generate an open circuit signal when the second measuring member breaks contact with the liquid surface of the liquid metal; The loop signal includes the closed loop signal and the open loop signal.

3. The device according to claim 2, characterized in that The first measuring member includes a first conductive portion and a first insulating portion, the first conductive portion is surrounded by the first insulating portion, a first end of the first conductive portion is connected to the control component, and a second end of the first conductive portion is close to the liquid surface of the liquid metal and is located above the liquid surface of the liquid metal, and is used to generate the closed loop signal and send it to the control component when in contact with the liquid surface of the liquid metal; The second measuring member comprises a second conductive portion and a second insulating portion, the second conductive portion is surrounded by the second insulating portion, a first end portion of the second conductive portion is connected to the control component, and a second end portion of the second conductive portion is close to the liquid surface of the liquid metal and is located below the liquid surface of the liquid metal, and is used to generate the open circuit signal and send it to the control component when the contact with the liquid surface of the liquid metal is broken; There is a predetermined height difference between the second end of the first conductive portion and the second end of the second conductive portion.

4. The device according to claim 3, characterized in that The predetermined height difference is in the range of 2-5 mm.

5. The device according to claim 3, characterized in that The control component is configured as follows: When the closed-loop signal is received, the driving component is controlled to drive the measuring component away from the liquid metal until the closed-loop signal disappears, thereby obtaining the first displacement information of the measuring component or the first step information of the driving component.

6. The device according to claim 5, characterized in that The control component is also configured to: A liquid level change of the liquid metal is determined according to the first displacement information or the first advancement information.

7. The device according to claim 3, characterized in that The control component is configured as follows: When the open-loop signal is received, the driving component is controlled to drive the measuring component to approach the liquid metal until the open-loop signal disappears, and then the second displacement information of the measuring component or the second step information of the driving component is obtained.

8. The device according to claim 7, characterized in that The control component is also configured to: A liquid level change of the liquid metal is determined according to the second displacement information or the second step information.

9. A method for measuring the liquid level of liquid metal, characterized in that: The following steps are involved: S1, determining a first loop signal formed by the liquid metal and the measuring component; S2, sending the first loop signal determined in step S1 to the control component; S3, after the control component receives the first loop signal, sending a first control instruction to the driving component, so as to use the driving component to drive the measuring component to move until a second loop signal is generated; S4, after the control component receives the second loop signal, sending a second control instruction to the drive component to control the drive component to stop driving; S5. Determine the liquid level change of the liquid metal according to the displacement information of the measuring component or the step information of the driving component.

10. The method according to claim 9, characterized in that The first loop signal includes a first closed loop signal and a first open loop signal. In the step S1, it includes: S11, when the liquid level of the liquid metal rises and contacts the measuring component, determining to generate the first closed loop signal; S12: When the liquid level of the liquid metal drops and the contact with the measuring component is broken, determine to generate the first open-loop signal.

11. The method according to claim 10, characterized in that When the first loop signal is the first closed loop signal, the step S3 includes: A first control instruction is sent to the driving component to use the driving component to drive the measuring component away from the liquid metal until a second open loop signal is generated, wherein the second loop signal includes the second open loop signal.

12. The method according to claim 10, characterized in that When the first loop signal is the first open loop signal, the step S3 includes: A first control instruction is sent to the driving component to use the driving component to drive the measuring component close to the liquid metal until a second closed loop signal is generated, wherein the second loop signal includes the second closed loop signal.

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