Sampling device
By designing a sample holder controlled by the sample holder and joystick, the electrolyte sampling efficiency and accuracy problems in the electrolyte cell are solved, and efficient and safe sampling of electrolyte samples at different locations and depths is achieved, and the quality and safety of electrolyte detection are improved.
Patent Information
- Application Number
- CN202422236048.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-11
AI Technical Summary
In the prior art, the sampling efficiency of metal lithium electrolyte cells is not high and the accuracy is poor, making it difficult to detect electrolyte components at different locations and depths, resulting in uneven detection of electrolyte components, affecting the quality and efficiency of electrolytic production.
A sampler is designed, including a sample storage tube, an inlet tube and a joystick. The inlet tube is movably sealed and opened by the joystick to achieve accurate sampling of the electrolyte. An inner chamber is provided in the sample storage tube, and the inlet tube is in communication with the inner chamber. The joystick can be movably embedded or disengaged from the inlet tube to control the entry and exit of the electrolyte.
Effective sampling of electrolyte samples at different locations and depths of the electrolyte cell is achieved, which improves sampling efficiency and accuracy, reduces the risk of electrolyte spilling and scalding, and simplifies the operation process.
Smart Images
Figure CN223154590U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of metal lithium electrolytes, and more specifically, to a sampler. Background Art
[0002] The wide application of metallic lithium in the fields of new energy, nuclear industry, medicine, etc. is self-evident, and it has always enjoyed the reputation of "industrial monosodium glutamate", "new energy metal" and "important element to drive the world forward".
[0003] At present, the main production methods of metallic lithium are vacuum thermal reduction method and molten salt electrolysis method. In the process of large-scale industrial production of metallic lithium, the mainstream process is still the molten salt electrolysis method. The molten salt electrolysis method mainly uses anhydrous lithium chloride as raw material, and electrolyzes in an electrolytic cell at a temperature range of 420 °C to 460 °C. Chloride ions on the anode plate undergo an oxidation reaction to precipitate chlorine gas, and lithium ions on the cathode plate undergo a reduction reaction to precipitate liquid metallic lithium.
[0004] The main electrolysis reaction equations are as follows:
[0005] Cathode: Li + +e - →Li(s);
[0006] Anode: Cl - →Cl2(g)+e - ;
[0007] Total reaction: Li + +Cl - →Cl2(g)+Li(s).
[0008] During the electrolysis of metallic lithium, the composition of the electrolyte has a very important influence on the electrolysis conditions, efficiency and quality. It is often necessary to detect the composition of the electrolyte and its impurity content to control the electrolysis process and ensure the quality and efficiency of electrolytic production of metallic lithium. However, the composition of the electrolyte and the impurity content are greatly affected by different positions and depths in the electrolytic cell, resulting in the uneven composition of the sampled electrolyte.
[0009] Currently, the main sampling method commonly used in electrolytic cells is: directly insert a sampling spoon into the electrolytic cell to scoop out the electrolyte into a sample tray or crucible for cooling, and then obtain powdered electrolyte after crushing for subsequent detection.
[0010] There are mainly two problems with sampling using a sampling spoon:
[0011] First, the sampling efficiency is not high. Even though the sampling spoon is relatively long and can be conveniently inserted into the electrolytic cell, during the process of taking it out, due to the temperature of the electrolytic cell, the chlorine gas atmosphere, etc., it is easy to cause manual shaking, and it is necessary to avoid other structures or equipment on the electrolytic cell. As a result, the electrolyte in the sampling spoon often spills, resulting in less sampling, and secondary or multiple samplings are required.
[0012] Second, the accuracy of the electrolyte is poor. Currently, only the electrolyte on the upper surface can be sampled with a sampling spoon. When sampling the electrolytes in electrolytic cells at different depths, due to the large interference of the upper electrolyte on the open sampling spoon, there are significant differences between the components of the obtained electrolyte sample and the components of the electrolyte in the electrolytic cell, affecting the accuracy of the detection.
[0013] In addition, due to the influence of high temperature, the flow characteristics of the electrolyte, corrosion, etc., there is currently no instrument that can simply, conveniently, accurately, and efficiently sample the metal lithium electrolyte.
[0014] In view of this, the present utility model is specifically proposed. Content of the Utility Model
[0015] The purpose of the present utility model is to provide a sampler, which can solve or improve the above problems.
[0016] The embodiments of the present utility model can be implemented as follows:
[0017] In the first aspect, the present utility model provides a sampler, which includes a sample receiving tube, an inlet tube, and a control rod;
[0018] The sample receiving tube has an inner cavity;
[0019] The inlet tube is installed at one end of the sample receiving tube, and the inlet tube is communicated with the inner cavity;
[0020] One end of the control rod is movably arranged in the inner cavity. One end of the control rod is used to insert into the inlet tube to block the inlet tube and to disengage from the inlet tube to open the inlet tube, so that the electrolyte can enter the inner cavity through the inlet tube.
[0021] In an alternative embodiment, the inlet tube is provided with an internal thread, and one end of the control rod is provided with an external thread, and the external thread is used for threaded connection with the internal thread to block the inlet tube.
[0022] In an alternative embodiment, the sampler further includes a fixing device. The fixing device is fixedly arranged in the inner cavity. The fixing device is provided with a central hole, and the central hole is in movable cooperation with the control rod to limit the movement of the control rod.
[0023] In an alternative embodiment, the central hole and the control rod are in sealing fit or clearance fit.
[0024] In an alternative embodiment, the inlet pipe is welded to the sample receiving pipe.
[0025] In an alternative embodiment, the sampler further includes a handle provided at one end of the sample receiving pipe away from the inlet pipe.
[0026] In an alternative embodiment, the sampler further includes a grip provided at one end of the operating rod away from the inlet pipe.
[0027] In an alternative embodiment, the sampler further includes a heat insulating sleeve sleeved on the operating rod.
[0028] In an alternative embodiment, a limiting wire is provided on the operating rod.
[0029] In an alternative embodiment, scale lines are provided on the outer wall of the sample receiving pipe.
[0030] The beneficial effects of the present utility model include:
[0031] The sampler provided by the present utility model includes a sample receiving pipe, an inlet pipe and an operating rod. The sample receiving pipe has an inner cavity. The inlet pipe is installed at one end of the sample receiving pipe and is in communication with the inner cavity. One end of the operating rod is movably arranged in the inner cavity. One end of the operating rod is used to insert into the inlet pipe to block the inlet pipe, and is used to disengage from the inlet pipe to open the inlet pipe, so that the electrolyte can enter the inner cavity through the inlet pipe.
[0032] Before sampling, the operating rod can be operated so that one end of the operating rod blocks the inlet pipe to ensure that the sample receiving pipe is in a relatively closed state. After the sampler is inserted into the sampling position in the electrolytic cell, that is, after the inlet pipe is in the sampling position, the operating rod can be operated so that the operating rod disengages from the inlet pipe. For example, it extends out of the inlet pipe or retracts into the inner cavity. With the inlet pipe in an open state, the electrolyte sample can smoothly enter the inner cavity for storage. After sampling is completed, the operating rod is operated again to block the inlet pipe. The sampler is taken out and moved to the electrolyte analysis equipment. The operating rod can be operated so that the operating rod opens the inlet pipe, and the electrolyte sample can smoothly be transferred from the inner cavity to the analysis equipment.
[0033] Therefore, the sampler provided by the present utility model can effectively and accurately sample electrolytes at different positions and different depths in the electrolytic cell, improving the sampling efficiency and quality. Description of the Drawings
[0034] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the attached drawings required for the embodiments. It should be understood that the following attached drawings only show some embodiments of the present utility model, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related attached drawings can also be obtained based on these attached drawings.
[0035] Figure 1 It is a schematic structural diagram of the sampler provided in this embodiment.
[0036] Icon: 1 - inlet pipe; 2 - sample containing pipe; 211 - inner cavity; 3 - fixing device; 311 - middle hole; 4 - handle; 5 - operating rod; 6 - heat insulation sleeve; 7 - grip. Specific embodiments
[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. Usually, the components of the embodiments of the present utility model described and shown in the attached drawings here can be arranged and designed in various different configurations.
[0038] Therefore, the following detailed description of the embodiments of the present utility model provided in the attached drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.
[0039] It should be noted that similar reference numerals and letters denote similar items in the following attached drawings. Therefore, once an item is defined in one attached drawing, it does not need to be further defined and explained in subsequent attached drawings.
[0040] In the description of the present utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the attached drawings, or the orientation or positional relationship in which the product of this utility model is usually placed when in use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, if terms such as "first", "second", "third", etc. are used only for distinguishing descriptions, they cannot be understood as indicating or implying relative importance.
[0041] In addition, when terms such as "horizontal" and "vertical" appear, it does not mean that the components are required to be absolutely horizontal or hanging vertically, but they can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and it does not mean that the structure must be completely horizontal, but it can be slightly inclined.
[0042] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, when terms such as "arranged", "installed", "connected", and "joined" appear, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0043] Embodiment
[0044] This embodiment provides a sampler that can effectively and accurately sample electrolytes at different positions and depths in an electrolytic cell, improving the sampling efficiency and quality.
[0045] Please refer to Figure 1 , the sampler includes a sample holding tube 2, an inlet tube 1, and a joystick 5.
[0046] The sample holding tube 2 has an inner cavity 211 which can be used to temporarily store electrolyte samples. Exemplarily, the material of the sample holding tube 2 can be a high-temperature resistant material.
[0047] The inlet tube 1 is installed at one end of the sample holding tube 2, and the inlet tube 1 is in communication with the inner cavity 211. In some alternative embodiments, the inlet tube 1 is welded to the sample holding tube 2. In other alternative embodiments, the inlet tube 1 and the sample holding tube 2 can also be installed and fixed by means of threaded connection or interference fit.
[0048] The inlet tube 1 can also be made of a high-temperature resistant material. The length of the inlet tube 1 should not be too short, as being too short will cause the sample to easily enter and exit during the sampling process. Correspondingly, the length of the inlet tube 1 should not be too long either, as being too long is not conducive to the entry of electrolyte samples.
[0049] One end of the joystick 5 is movably arranged in the inner cavity 211. One end of the joystick 5 is used to insert into the inlet tube 1 to block the inlet tube 1 and to disengage from the inlet tube 1 to open the inlet tube 1, so that the electrolyte can enter the inner cavity 211 through the inlet tube 1.
[0050] During specific operations, before sampling, the joystick 5 can be operated so that one end of the joystick 5 blocks the inlet pipe 1, ensuring that the sample holding pipe 2 is in a relatively closed state. After the sampler is inserted into the position to be sampled in the electrolytic cell, that is, after the inlet pipe 1 is in the position to be sampled, the joystick 5 can be operated so that the joystick 5 disengages from the inlet pipe 1. For example, it extends out of the inlet pipe 1 or retracts into the inner cavity 211. With the inlet pipe 1 in the open state, the electrolyte sample can smoothly enter the inner cavity 211 for storage. After sampling is completed, operate the joystick 5 to block the inlet pipe 1 again, lift out the sampler, and move the sampler to the electrolyte analysis device. Then, the joystick 5 can be operated so that the joystick 5 opens the inlet pipe 1, enabling the electrolyte sample to smoothly transfer from the inner cavity 211 to the analysis device. Through this sampler, effective sampling of electrolytes at different positions and depths in the electrolytic cell can be achieved, improving the sampling efficiency and quality.
[0051] In some alternative embodiments, the inlet pipe 1 may be provided with internal threads, and one end of the joystick 5 is correspondingly provided with external threads for threaded connection with the internal threads to block the inlet pipe 1. That is to say, the specific operation is a spiral operation. By rotating the joystick 5, one end of the joystick 5 can be screwed into the inlet pipe 1; or by rotating the joystick 5, one end of the joystick 5 can be screwed out of the inlet pipe 1. Therefore, the above-mentioned threaded connection method can facilitate the operation of the joystick 5.
[0052] In addition, in some scenarios, it cannot be excluded that the joystick 5 is in threaded connection with the sample holding pipe 2, and one end of the joystick 5 only makes a sealing contact with the inlet pipe 1 to achieve blocking.
[0053] In some other alternative embodiments, instead of rotation, linear movement can also be adopted to make one end of the joystick 5 snap into the inlet pipe 1 to block the inlet pipe 1. The specific operation method is not limited as long as the joystick 5 can block or open the inlet pipe 1.
[0054] In this embodiment, the sampler further includes a fixing device 3 fixedly arranged in the inner cavity 211. The fixing device 3 is provided with a central hole 311 which is movably engaged with the joystick 5 to limit the movement of the joystick 5.
[0055] By providing the fixing device 3, it can be ensured that the joystick 5 can always be kept in the middle position of the inner cavity 211 and will not touch the inner wall of the sample holding pipe 2. At the same time, through the limiting and guiding effect, it is also convenient for the operator to operate the joystick 5.
[0056] In some alternative embodiments, the middle hole 311 and the joystick 5 are in sealing fit, that is, the inner diameter of the middle hole 311 is the same as the outer diameter of the joystick 5. The sealing fit can prevent the electrolyte sample entering the inner cavity 211 from leaking through the fixing device 3.
[0057] The aperture of the inlet pipe 1 is relatively reasonable. After the inlet pipe 1 extends into the electrolytic cell, even if the middle hole 311 and the joystick 5 are in sealing fit, under the action of hydraulic pressure, the electrolyte sample can still enter the inner cavity 211 through the inlet pipe 1.
[0058] In some other alternative embodiments, the middle hole 311 and the joystick 5 are in clearance fit. In this way, the fluid flow is allowed at the mating part of the middle hole 311 and the joystick 5, which is conducive to the electrolyte sample entering the inner cavity 211 through the inlet pipe 1 after the inlet pipe 1 extends into the electrolytic cell.
[0059] Further, in order to facilitate the operation of the sample holding tube 2, the sampler may further include a handle 4, and the handle 4 is arranged at one end of the sample holding tube 2 away from the inlet pipe 1. Through the above arrangement, one hand of the operator can hold the handle 7, and the other hand can operate the joystick 5.
[0060] The above-mentioned handle 4 and the sample holding tube 2 can be welded or in a detachable connection form. The handle 4 can be made of a high-temperature resistant and heat-insulating material, which is convenient for smoothly lifting the sample after sampling.
[0061] Further, in order to facilitate the operation of the joystick 5, in this embodiment, the sampler may further include a handle 7, and the handle 7 is arranged at one end of the joystick 5 away from the inlet pipe 1. Through the above arrangement, one hand of the operator can rotate the handle 7 to achieve the threaded connection or disengagement of one end of the joystick 5 and the inlet pipe 1.
[0062] Similarly, the handle 7 and the joystick 5 can be welded or in a detachable connection form. The handle 7 can be made of a high-temperature resistant and heat-insulating material, which is convenient for the operator to operate.
[0063] Further, in order to avoid scalding the operator, in this embodiment, the sampler may further include a heat-insulating sleeve 6, and the heat-insulating sleeve 6 is sleeved on the joystick 5, so as to prevent the heat on the joystick 5 from quickly transferring to the handle 7.
[0064] Further, in this embodiment, a limit line (not shown in the figure) may be provided on the joystick 5. By setting the limit line, the improper rotation of the joystick 5 can be prevented to keep it in a proper position.
[0065] Further, in this embodiment, scale lines (not shown in the figure) may be provided on the outer wall of the sample holding tube 2. The scale lines can be determined according to the height of the electrolytic cell. By setting the scale lines, the operator can directly observe the temporary storage amount of the electrolyte sample.
[0066] Continuing from the above, the working principle of the sampler provided in this embodiment includes:
[0067] Before sampling: Through the handle 4 and the grip 7, one end of the operating rod 5 is screwed into the inlet pipe 1, and the limit wire at the upper end ends at the position of the handle 4.
[0068] Sampling process: After gently inserting the sampler into the desired position, the operating rod 5 is screwed out of the inlet pipe 1 by reversing the grip 7. After the electrolyte sample enters the inner cavity 211 of the sample holding tube 2 through the inlet pipe 1, the operating rod 5 is then screwed into the inlet pipe 1 to block the inlet pipe 1, and the sampler is taken out.
[0069] After sampling: After the sampler is taken out, the operating rod 5 is screwed out of the inlet pipe 1, and the taken electrolyte is placed in the sample dish to cool and then can be used for analysis.
[0070] In summary, the sampler provided in this embodiment has at least the following advantages:
[0071] 1. Sampling diversity: Compared with the previous sampler that could only obtain surface samples, the sampler provided in this embodiment is provided with scale lines, which is convenient for obtaining electrolyte samples at any height position in the electrolytic cell;
[0072] 2. Sampling accuracy: By blocking the inlet pipe 1 with the operating rod 5, no electrolyte samples from other parts will enter the sample holding tube 2 during the insertion process of the sampler. When reaching the position where sampling is required, the operating rod 5 is screwed out, and after the electrolyte sample enters the sample holding tube 2, the inlet pipe 1 is blocked with the operating rod 5 again, so that the whole process is not affected by electrolytes from other parts;
[0073] 3. Sampling efficiency: During the process of taking out the electrolyte sample after sampling, since the inlet pipe 1 is blocked by the operating rod 5, the taken electrolyte sample will not overflow. Therefore, there is basically no situation where no sample is taken or the amount is too small and sampling needs to be done again;
[0074] 4. Sampling safety: The sampler is equipped with a heat insulation sleeve 6, which reduces the probability of dangerous situations such as scalding;
[0075] 5. Sampling simplicity and strong processability: The structure of the whole sampler is simple and easy to process and implement.
[0076] Therefore, the sampler adopted in this application has the advantages of simple and convenient operation, accurate sampling, high efficiency, etc.
[0077] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A sampler, characterized in that, It includes a sample holding tube, an inlet tube, and a joystick; The sample holding tube has an inner chamber; The inlet tube is installed at one end of the sample holding tube, and the inlet tube communicates with the inner chamber; One end of the joystick is movably arranged in the inner chamber. One end of the joystick is used to insert into the inlet tube to block the inlet tube and to disengage from the inlet tube to open the inlet tube, so that the electrolyte can enter the inner chamber through the inlet tube.
2. The sampler according to claim 1, wherein, The inlet tube is provided with internal threads, and one end of the joystick is provided with external threads, and the external threads are used for threaded connection with the internal threads to block the inlet tube.
3. The sampler according to claim 1, wherein The sampler further includes a fixing device. The fixing device is fixedly arranged in the inner chamber. The fixing device is provided with a central hole, and the central hole is movably matched with the joystick to limit the movement of the joystick.
4. The sampler according to claim 3, characterized in that, The central hole and the joystick are in sealing fit or clearance fit.
5. The sampler according to claim 1, characterized in that, The inlet tube is welded to the sample holding tube.
6. The sampler according to any one of claims 1 to 5, characterized in that, The sampler further includes a handle. The handle is arranged at one end of the sample holding tube away from the inlet tube.
7. The sampler according to any one of claims 1 to 5, characterized in that, The sampler further includes a grip. The grip is arranged at one end of the joystick away from the inlet tube.
8. The sampler according to any one of claims 1 to 5, characterized in that, The sampler further includes a heat insulation sleeve. The heat insulation sleeve is sleeved on the joystick.
9. The sampler according to any one of claims 1 to 5, characterized in that, A limit line is arranged on the joystick.
10. The sampler according to any one of claims 1 to 5, characterized in that, Scale lines are arranged on the outer wall of the sample holding tube.