Ion cleaning equipment

Abstract

The utility model discloses ion cleaning equipment. The ion cleaning equipment comprises a shell, a flow guide part, a filtering device and a gas driving device, the shell is provided with a containing cavity, a gas inlet channel and a gas outlet channel, the containing cavity comprises a storage area and a gas inlet area, the storage area is used for containing samples, the gas inlet channel is used for allowing external gas to enter the containing cavity, and the flow guide part is arranged at the gas inlet channel and used for enabling the gas to flow to the gas inlet area; the filtering device is arranged at the air inlet channel; the gas driving device is connected to the shell. In the using process, an ion chromatography test sample can be placed in the storage area, gas in the containing cavity is replaced through cooperation of the gas driving device and the filtering device, the whole laboratory does not need to be filtered, the construction cost of the laboratory can be reduced, meanwhile, the cleanliness of the environment where the sample is located can be rapidly improved, and the working efficiency is improved. And the gas entering the accommodating cavity from the outside cannot be directly blown to the sample, so that the risk that the unfiltered gas remained in the accommodating cavity is in contact with the sample is reduced, and the sample testing accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the field of ion chromatography testing technology, and in particular to an ion purification device. Background Technology

[0002] Ion chromatography is used to test NH4 in ambient air and ultrapure water. + F - Cl - Plasma content. To improve the accuracy of test results, it is usually conducted in a cleanroom environment. However, even in a cleanroom environment, there is still trace amount of ion contamination. The sample will adsorb ions from the air, resulting in NH4 content in the sample. + F - Cl - The plasma test value increases. Therefore, during repeated testing, this leads to decreased repeatability of the test results, causing deviations in the results. To address this issue, some technologies install chemical filtration devices throughout the laboratory area to filter and reduce the amount of NH4 in the environment. + F - Cl - Plasma, through prolonged air circulation, can reduce the ion concentration in a laboratory area to the required level for testing. However, this method is not only expensive but also carries a high risk of sample contamination. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an ion purification device that can reduce purification costs and the risk of sample contamination.

[0004] This utility model also proposes another embodiment of an ion purification device.

[0005] An ion purification device according to a first aspect of the present invention includes: a housing, a flow guide, a filter, and a gas driving device.

[0006] The outer casing has a receiving cavity and an air inlet channel and an air outlet channel communicating with the receiving cavity. The receiving cavity includes a storage area and an air inlet area distinct from the storage area. The storage area is used to contain samples, and the air inlet channel is used to allow external gas to enter the receiving cavity. A guide member is disposed at the air inlet channel to guide the external gas entering from the air inlet channel to the air inlet area. A filter device is disposed at the air inlet channel to filter the gas entering the receiving cavity. A gas driving device is connected to the outer casing to discharge the gas in the receiving cavity from the air outlet channel.

[0007] The ion purification device according to the embodiments of this utility model has at least the following beneficial effects:

[0008] In this embodiment, the outer casing includes a storage area and an inlet area. The storage area is used to store ion chromatography test samples, and the guide device is used to guide the gas entering the containment cavity so that external gas flows into the containment cavity towards the inlet area, meaning that external gas entering the containment cavity will not directly blow towards the storage area. Therefore, during use, the ion chromatography test sample is placed in the storage area, and the gas driving device and the filtration device work together to replace the unfiltered gas in the containment cavity, eliminating the need to filter the entire laboratory. This not only reduces laboratory setup costs but also quickly improves the cleanliness of the sample environment. Furthermore, the external gas entering the containment cavity will not directly blow onto the sample, thereby reducing the risk of unfiltered gas in the containment cavity coming into contact with the sample, thus reducing the risk of sample contamination and improving the accuracy of sample test results.

[0009] According to some embodiments of the present invention, the air intake channel is located on the side wall of the housing, the uppermost edge of the storage area is higher than the bottom wall of the air intake channel, and the storage area and the air intake channel are spaced apart in the horizontal direction.

[0010] The air guide is inclined upward so that the external gas entering from the air intake channel flows obliquely upward; or,

[0011] The ion purification device also includes a rotating shaft parallel to the horizontal direction. The flow guide is rotatably connected to the outer shell through the rotating shaft, so that the flow guide can rotate vertically relative to the outer shell to adjust the flow direction of the gas entering the receiving cavity through the air inlet channel.

[0012] According to some embodiments of the present invention, the outer shell has a shell body and a shell top, the shell top being connected to the top of the shell body and forming the receiving cavity together with the shell body;

[0013] The shell includes a first sidewall and a second sidewall facing the first sidewall, the air intake channel is located on the first sidewall, and the inner wall of the shell top is smoothly connected to the second sidewall; or,

[0014] The air intake channel is formed in the shell, the inner wall of the shell is a cylindrical surface, and the inner wall of the shell top is a spherical surface that is smoothly connected to the cylindrical surface.

[0015] According to some embodiments of the present invention, the ion purification device includes a plurality of flow guides distributed in a vertical direction, each of which can rotate independently relative to the outer shell.

[0016] According to some embodiments of the present invention, the storage area extends horizontally to the air intake channel, and two adjacent guide members can abut against each other. When adjacent guide members abut against each other, the corresponding air intake channel area is closed.

[0017] According to some embodiments of the present invention, the air inlet channel of the outer shell is provided with the gas driving device, and the ion purification equipment includes an adjustment mechanism. The adjustment mechanism includes an adjustment member, which is movably connected to the air outlet channel of the outer shell for adjusting the opening and closing degree of the air outlet channel.

[0018] According to some embodiments of the present invention, the ion purification device further includes an air inlet pipe, which is connected to the outer wall of the outer shell and defines an air inlet cavity that communicates with the air inlet channel. The air inlet cavity has an air inlet, and the filter device is disposed at the air inlet and covers the air inlet.

[0019] The air inlet is positioned upwards, and the gas driving device is located above the filter device; or...

[0020] The air inlet is positioned downwards, and the gas driving device is located below the filter device.

[0021] According to some embodiments of the present invention, the filter device is detachably connected to the housing.

[0022] An ion purification device according to a second aspect of the present invention includes: a shell filter device and a gas driving device.

[0023] The outer casing has a receiving cavity and an air inlet channel and an air outlet channel communicating with the receiving cavity. The receiving cavity includes a storage area and an air inlet area distinct from the storage area. The storage area is used to contain samples. The air inlet channel is used to allow external gas to enter the receiving cavity. The bottom wall of the air inlet channel is defined as a guide wall, which can guide the external gas entering from the air inlet channel to the air inlet area. A filter device is disposed at the air inlet channel for filtering the gas entering the receiving cavity. A gas driving device is connected to the outer casing for discharging the gas in the receiving cavity from the air outlet channel.

[0024] The ion purification device according to the embodiments of this utility model has at least the following beneficial effects:

[0025] In this embodiment, the outer casing includes a storage area and an air inlet area. The storage area is used to store ion chromatography test samples, and the bottom wall of the air inlet channel guides the gas entering the containment cavity, causing external gas to flow into the containment cavity towards the air inlet area. This means that external gas entering the containment cavity will not directly blow towards the storage area. Therefore, during use, the ion chromatography test sample is placed in the storage area, and the gas driving device and filtration device work together to replace the unfiltered gas in the containment cavity, eliminating the need to filter the entire laboratory. This not only reduces laboratory setup costs but also rapidly improves the cleanliness of the sample environment. Furthermore, the external gas entering the containment cavity will not directly blow onto the sample, thereby reducing the risk of unfiltered gas in the containment cavity coming into contact with the sample, thus reducing the risk of sample contamination and improving the accuracy of sample test results.

[0026] According to some embodiments of the present invention, the air intake channel is located on the side wall of the housing, the bottom wall of the air intake channel is a guide wall, and the guide wall is inclined upward so that the gas entering the accommodating cavity through the air intake channel flows inclined upward to the air intake area when it comes into contact with the guide wall, and the uppermost edge of the air intake area is higher than the uppermost edge of the guide wall.

[0027] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0029] Figure 1 This is a schematic diagram of the structure of the ion purification device according to the first embodiment of the first aspect of this utility model;

[0030] Figure 2 for Figure 1 A sectional view;

[0031] Figure 3 This is a cross-sectional view of the second embodiment of the first aspect of the present invention, of an ion purification device;

[0032] Figure 4 This is a cross-sectional view of the third embodiment of the first aspect of the present invention, of an ion purification device;

[0033] Figure 5 This is a cross-sectional view of the fourth embodiment of the first aspect of the present invention, of an ion purification device;

[0034] Figure 6 This is a cross-sectional view of the fifth embodiment of the first aspect of the present invention, of an ion purification device;

[0035] Figure 7 This is a cross-sectional view of the sixth embodiment of the first aspect of the present invention, of an ion purification device;

[0036] Figure 8 This is a cross-sectional view of an ion purification device according to a second aspect of the present invention.

[0037] Figure label:

[0038] Outer shell 100, air outlet channel 110, sub-air outlet channel 111, storage opening 120, shielding door 130, receiving cavity 140, storage area 141, air inlet area 142, air inlet channel 150, guide wall 151, shell body 160, first side wall 161, second side wall 162, shell top 170, connecting hole 180;

[0039] Filter device 200, gas drive device 300;

[0040] Air intake pipe 400, air intake port 410, air intake chamber 420;

[0041] Flow guide 500, rotating shaft 600, adjusting component 700. Detailed Implementation

[0042] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0043] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0045] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0046] Ion chromatography is used to test NH4 in ambient air and ultrapure water. + F - Cl - Plasma content. To improve the accuracy of test results, it is usually conducted in a cleanroom environment. However, even in a cleanroom environment, there is still trace amount of ion contamination. The sample will adsorb ions from the air, resulting in NH4 content in the sample. + F - Cl - The plasma test value increases. Therefore, during repeated testing, this leads to decreased repeatability of the test results, causing deviations in the results. To address this issue, some technologies install chemical filtration devices throughout the laboratory area to filter and reduce the amount of NH4 in the environment. + F - Cl - Plasma, through prolonged air circulation, can reduce the ion concentration in a laboratory area to the required level for testing. However, this method is not only expensive but also carries a high risk of sample contamination.

[0047] In view of the above background, this utility model proposes an ion purification device that can reduce purification costs and the risk of sample contamination. (Refer to...) Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the ion purification device according to the first embodiment of the first aspect of this utility model. Figure 2 for Figure 1 The ion purification device of this embodiment, as shown in the cross-sectional view, includes: a housing 100, a filter device 200, and a gas driving device 300.

[0048] The outer casing 100 has a receiving cavity 140 and an air inlet channel 150 and an air outlet channel 110 communicating with the receiving cavity 140. The receiving cavity 140 includes a storage area 141 and an air inlet area 142 (e.g., different from the storage area 141). Figure 2As shown, the storage area 141 and the air inlet area 142 are not overlapping. The storage area 141 is used to contain samples. For example, during the experiment, the sample is placed in an autosampler, which is placed in the containing cavity, and the sample is located in the storage area. The autosampler is used for sampling during the experiment. The sample is placed in the autosampler, for example, through an additional container, or the autosampler itself has a container. The air inlet channel 150 is used to allow external gas to enter the containing cavity 140, and the air outlet channel 110 is used to allow gas to exit from the containing cavity 140. The air outlet channel 110 is, for example, a hole in the outer shell 100, or as... Figure 1 The diagram shows a system formed by multiple sub-exhaust channels 111. A guide member 500 is disposed at the inlet 410. For example, each guide member 500 corresponds to one of the intake channels 150, or one intake channel 150 corresponds to multiple guide members 500. The guide members 500 are used to guide the gas entering the receiving cavity 140, so that external gas flows into the receiving cavity 140 towards the intake area 142. The gas driving device 300 is, for example, a fan or air pump, and is connected to the housing 100 to discharge the gas in the receiving cavity 140 from the exhaust channel 110. For example, the gas driving device 300 is connected to the outside of the housing 100 and located at the intake channel 150 (e.g., ...). Figure 2 As shown, an external gas is blown into the receiving cavity 140, thereby increasing the internal air pressure of the receiving cavity 140, so that the gas inside the receiving cavity 140 is discharged from the outlet passage 110. Alternatively, a gas driving device 300 is connected to the outside of the housing 100 and located at the outlet passage 110, for extracting the gas inside the receiving cavity 140 to reduce the internal air pressure of the receiving cavity 140, so that external gas enters the receiving cavity 140 through the inlet passage 150. A filter device 200 is provided at the inlet passage 150 for filtering the gas entering the receiving cavity 140 to reduce the NH4 content in the gas. + F - Cl - The content of plasma contaminants. The filter device 200 is located inside or outside the housing 100. As long as the gas flowing through the air inlet channel 150 can be filtered by the filter device 200, it can ensure that the sample is not affected by external ions during the test and improve the accuracy of the test results.

[0049] The air intake channel 150 is not limited to being located on the side wall of the housing 100; it can also be located on the top or bottom of the housing 100, as long as it prevents direct gas from entering the storage area 141. Furthermore, the housing 100 also has a storage opening 120 for operators to place and retrieve samples. The storage opening 120 is located, for example, on the top or side of the housing 100. Correspondingly, the housing 100 also has a blocking door 130, which is movably disposed at the storage opening 120 to allow the storage opening 120 to be opened and closed. Alternatively, in some embodiments, the storage opening 120 is located at the bottom of the housing 100, such as... Figure 4 As shown, Figure 4 This is a cross-sectional view of the ion purification device according to the third embodiment of the first aspect of this utility model. During use, the outer casing 100 can be lifted and placed over the sample from above, sealing the outer casing 100 to the surface of the platform (such as a test bench) where the sample is placed, thereby blocking the placement opening 120. Furthermore, in some embodiments, the outer casing 100 also includes a connection hole 180 for communication between an external device and the receiving cavity 140. For example, the external device is a sample testing device, which is connected to the receiving cavity 140 via a conveying device. The conveying device passes through the connection hole 180 and is sealed to the inner wall of the connection hole 180. During the experiment, the sampler takes a sample and transports it to the testing device for detection via the conveying device.

[0050] Specifically, in this embodiment, the outer casing 100 includes a storage area 141 and an inlet area 142. The storage area 141 is used to store ion chromatography test samples, and the guide member 500 is used to guide the gas entering the containment cavity 140 so that the external gas flows into the containment cavity 140 towards the inlet area 142, that is, the external gas entering the containment cavity 140 will not be directly directed towards the storage area 141. Therefore, during use, the ion chromatography test sample is placed in the storage area 141, and the gas driving device 300 and the filter device 200 work together to replace the unfiltered gas in the containment cavity 140, without the need to filter the entire laboratory. This not only reduces the laboratory setup cost but also quickly improves the cleanliness of the sample environment. Furthermore, the gas entering the containment cavity 140 from the outside will not be directly blown onto the sample, thereby reducing the risk of the unfiltered gas in the containment cavity 140 coming into contact with the sample and reducing the risk of sample contamination. Thus, when the sampler takes multiple samples for experiments, the repeatability of the experimental results can be guaranteed, thereby improving the accuracy of the experimental results. Specifically, during sample loading and unloading, the receiving cavity 140 is directly connected to the outside. Therefore, before the gas driving device 300 is activated, the receiving cavity 140 still contains unfiltered gas. If the filtered gas flows directly towards the sample, the unfiltered gas in the receiving cavity 140 will be carried towards the sample by the airflow, causing ions in the gas to be adsorbed by the sample. This embodiment effectively improves this problem. In this embodiment, the gas entering through the air inlet channel 150 is directly blown towards the air inlet area 142 instead of directly hitting the sample, thereby reducing the risk of the sample being contaminated by the unfiltered gas in the receiving cavity 140, thus improving the testing accuracy. In addition, the external gas may contain tiny impurities that the filter device 200 cannot filter. If the gas is blown directly towards the sample, the risk of these impurities being adsorbed by the sample will increase. However, in this embodiment, the gas does not directly hit the sample, thus reducing the risk of the sample adsorbing unfiltered impurities from the gas, thereby improving the testing accuracy.

[0051] Reference Figures 1 to 3 , Figure 3 This is a cross-sectional view of the second embodiment of the ion purification device according to the first aspect of this utility model. In some embodiments, the ion purification device further includes an air inlet pipe 400, which is connected to the air inlet channel 150 of the outer shell 100, forming an air inlet chamber 420 communicating with the air inlet channel 150 between the air inlet pipe 400 and the outer shell 100. The air inlet chamber 420 has an air inlet 410, and a filter device 200 is disposed at the air inlet 410. The air inlet 410 is, for example, oriented downwards, and the gas driving device 300 is disposed below the filter device 200, thereby making full use of the vertical space and making the structure of the ion purification device of this embodiment more compact, reducing the floor space occupied or the area occupied by the test bench. Similarly, the air inlet 410 is oriented upwards, and the gas driving device 300 is disposed above the filter device 200 (e.g., Figure 3 As shown in the image, this will not be elaborated upon further here.

[0052] Reference Figure 2 In some embodiments, the air inlet channel 150 is located on the side wall of the housing 100, the uppermost edge of the storage area 141 is higher than the bottom wall of the air inlet channel 150, and the storage area 141 and the air inlet channel 150 are spaced apart in the horizontal direction. The guide member 500 is inclined upward so that the external gas entering from the air inlet 410 flows obliquely upward. Specifically, in this embodiment, the storage area 141 is higher than the bottom wall of the air inlet channel 150, thereby enabling the storage of sample containers of more sizes (including additionally provided sample containers and sample containers provided with the injector; unless otherwise specified, the following embodiments are the same). Furthermore, through the guiding effect of the guide member 500, the air inlet channel 150 can be set larger without having to be higher than the storage area 141, thereby increasing the air intake volume, improving the gas exchange efficiency within the container, and thus shortening the filtration time.

[0053] Furthermore, referring to Figure 2 In some embodiments, the ion purification device further includes a rotating shaft 600 parallel to the horizontal direction. A flow guide 500 is rotatably connected to the outer casing 100 via the rotating shaft 600, allowing the flow guide 500 to rotate vertically relative to the outer casing 100 to adjust the flow direction of gas entering the receiving cavity 140 via the air inlet channel 150. Therefore, in this embodiment, when a sample container higher than the air inlet channel 150 is stored, the flow guide 500 can be rotated upwards, causing the gas entering the receiving cavity 140 to tilt upwards. When the stored sample container is shorter, the flow guide 500 can be rotated downwards. This not only reduces the obstruction of the flow guide 500 to the gas, increasing the gas velocity entering the receiving cavity 140 and improving gas exchange efficiency, but also allows the airflow to quickly remove unfiltered gas near the sample, thereby reducing the risk of sample contamination.

[0054] In some embodiments, the housing 100 has a body 160 and a top 170, the top 170 being connected to the top of the body 160 and together forming a receiving cavity 140. The body 160 includes a first sidewall 161 and a second sidewall 162 facing the first sidewall 161. An air inlet channel 150 is located on the first sidewall 161. The inner wall of the top 170 is a curved surface that smoothly connects to the second sidewall 162. Thus, the gas entering the receiving cavity 140 can flow smoothly to the sidewall after contacting the inner wall of the top 170, thereby avoiding violent collisions of the gas at the connection between the top 170 and the body 160, improving the stability of the gas in the receiving cavity 140, thereby reducing the disturbance of the sample by unfiltered gas in the receiving cavity 140 and reducing the risk of sample contamination. Similarly, in some implementations, the inner wall of the shell 160 is a cylindrical surface, the air intake channel 150 is formed in the shell 160, and the inner wall of the shell top 170 is a spherical surface that is smoothly connected to the cylindrical surface, which will not be elaborated here.

[0055] Reference Figure 5 , Figure 5 This is a cross-sectional view of the ion purification device according to the fourth embodiment of the first aspect of this utility model. In some embodiments, the ion purification device includes multiple guide members 500 distributed vertically, each guide member 500 capable of rotating independently relative to the outer casing 100. Therefore, during use, the angle of each guide member 500 can be adjusted as needed. For example, during use, the guide members 500 below or near the sample container opening can be adjusted to be tilted upwards, allowing gas to flow upwards, thereby reducing the risk of unfiltered gas in the receiving cavity 140 contaminating the sample. Guide members 500 higher than and farther from the sample container are set at the same angle as the air intake direction of the air inlet channel 150. For example, if the air inlet channel 150 is horizontal, the guide members 500 are set horizontally, reducing the obstruction of the gas by the guide members 500 and ensuring the speed of gas flow into the container cavity. Thus, in this embodiment, by using multiple independently arranged guide members 500, the speed of gas exchange within the container can be ensured while reducing the risk of sample contamination, thereby improving testing efficiency.

[0056] Reference Figure 6 , Figure 6 This is a cross-sectional view of the fifth embodiment of the ion purification device according to the first aspect of this utility model. Based on the above embodiment, the storage area 141 extends horizontally to the air inlet channel 150. Two adjacent guide members 500 can abut against each other. When adjacent guide members 500 abut against each other, the corresponding air inlet channel 150 area is closed. Specifically, for example, the guide member 500 has a set width H. The width of the guide member 500 corresponds to the maximum vertical dimension of the guide member 500 when it is set in the vertical direction. One side of the guide member 500 in the width direction is rotatably connected to the housing 100. The distance between the rotation axes 600 of two adjacent guide members 500 is L, where L≤H, so that the guide members 500 can abut against each other, thereby blocking the air inlet channel 150 and adjusting the height of the external gas flowing into the receiving cavity 140. Specifically, the horizontal dimensions of the sample container are relatively large. Even with the upward rotation of the adjusting member 700, gas may still flow through the opening of the sample container, failing to effectively prevent unfiltered gas from contaminating the sample. This embodiment effectively improves this problem. In this embodiment, adjacent guide members 500 can abut against each other. Therefore, during use, the guide plate near the sample container opening can be directly adjusted to abut against the adjacent guide plate, preventing gas from flowing near the sample container opening. This effectively reduces the risk of sample contamination and improves the accuracy of the sample test results.

[0057] In some embodiments, a gas driving device 300 is provided at the air inlet channel 150 of the housing 100 to make the air pressure inside the receiving cavity 140 higher than the air pressure outside the housing 100, thereby reducing the risk of external gas entering the receiving cavity 140 without the filter device 200, and further reducing the risk of sample contamination. Specifically, it is known that there may be certain errors in the installation and processing of the equipment, which may result in gaps between the various components of the equipment, causing air to flow through the gaps between the components. Even if seals are provided between the components, it will not only increase the cost of the equipment, but the seals may also age and fail after long-term use. This embodiment can effectively improve this problem by maintaining a positive pressure state inside the receiving cavity 140 through the cooperation of the gas driving device 300 and the air outlet channel 110. For example, in some embodiments, the ion purification device is configured such that the gas flow rate entering the receiving cavity 140 via the air inlet channel 150 is Q1, and the gas flow rate exiting via the air outlet channel 110 is Q2, where Q1 > Q2. This allows the gas pressure inside the receiving cavity 140 to be greater than the external gas pressure, preventing external gas from flowing back into the receiving cavity 140 through gaps between components or through the air outlet channel 110, thus ensuring the cleanliness of the internal environment.

[0058] Reference Figure 7 , Figure 7 This is a cross-sectional view of the ion purification device according to the sixth embodiment of the first aspect of this utility model. In some embodiments, the adjustment mechanism further includes an adjustment member 700, which is movably connected to the air outlet channel 110 of the housing 100 and used to adjust the opening and closing degree of the air outlet channel 110. For example, the adjustment member 700 is movably connected to the housing 100 and can block the air outlet channel 110. Thus, when it is necessary to increase the air pressure in the receiving cavity 140, the air outlet channel 110 can be partially blocked by the adjustment member 700 while the air output of the gas driving mechanism remains unchanged. As another example, the air outlet channel 110 includes multiple sub-air outlet channels 111. The opening and closing degree of the air outlet channel 110 can be adjusted by adjusting the number of open sub-air outlet channels 111 to control the air pressure in the receiving cavity 140.

[0059] Similarly, in some embodiments, the ion purification device includes an adjustment mechanism for regulating the gas output of the gas driving device 300 to create a positive pressure state within the receiving cavity 140. For example, the adjustment mechanism includes a baffle located at the air duct of the gas driving device 300 and capable of rotating or moving relative to the gas driving device 300 to adjust the size of the air duct, thereby regulating the gas flow rate entering the receiving cavity 140. Alternatively, the adjustment mechanism can be a gear switch for the gas driving device 300, which adjusts the power of the gas driving device 300, thereby regulating the gas output. Furthermore, since the gas output of the gas driving device 300 is adjustable, the gas output can be reduced once the gas pressure within the receiving cavity 140 reaches a certain value, thus preventing excessive gas pressure within the receiving cavity 140 and potential safety hazards.

[0060] Furthermore, in some embodiments, the ion purification device includes an adjustment mechanism for adjusting the gas output of the gas driving device 300 and the opening and closing degree of the gas outlet channel 110. Therefore, in the initial stage of filtration, the gas output of the gas driving device 300 can be increased while simultaneously increasing the opening and closing degree of the gas outlet channel 110, thereby allowing unfiltered gas in the receiving cavity 140 to be quickly discharged. After a certain period, the gas output of the gas driving device 300 is reduced, and the opening and closing degree of the gas outlet channel 110 is gradually decreased to ensure stable gas pressure within the receiving cavity 140, maintaining a high-efficiency filtration state while avoiding safety risks caused by excessively high gas pressure.

[0061] In some embodiments, the ion purification device further includes a pressure sensor disposed within the containment cavity 140 for detecting the air pressure within the containment cavity 140. The pressure sensor is communicatively connected to an adjustment mechanism. The pressure sensor is configured such that, upon detecting that the air pressure within the containment cavity 140 reaches a set value, the detection signal of the pressure sensor changes and is transmitted to the adjustment mechanism. The adjustment mechanism adjusts the gas drive device 300 or adjusts the opening and closing degree of the air outlet channel 110 to maintain the air pressure within the containment cavity 140 at the set value. Thus, while ensuring positive pressure in the containment cavity 140, excessive air pressure is avoided.

[0062] In some embodiments, the filter device 200 is detachably connected to the housing 100, so that after a period of use, the filter device 200 can be removed and replaced. Exemplarily, the filter device 200 is connected to the housing 100 by snap-fit ​​or threaded connection. For example, the filter device 200 is located between the housing 100 and the gas driving device 300, and both the filter device 200 and the housing 100 and the gas driving device 300 are detachably connected by screws. Further, to improve the ease of disassembly of the filter device 200, the gas driving device 300 is connected to the housing 100, and the filter device 200 is detachably connected to the side of the gas driving device 300 opposite to the housing 100. Therefore, when replacing it, it is only necessary to remove the filter device 200 from the gas driving device 300. For example, the ion purification device also includes an air inlet pipe 400, which is connected to the air inlet channel 150 of the housing 100, forming an air inlet chamber 420 communicating with the air inlet channel 150. The air inlet chamber 420 has an upward or downward air inlet 410. A gas drive device 300 is connected to the housing 100 and is vertically spaced from the air inlet 410. A filter device 200 is inserted between the air inlet pipe 400 and the gas drive device 300. Therefore, when the filter device 200 needs to be replaced, it can be easily replaced simply by pulling the filter device 200 out from between the air inlet pipe 400 and the gas drive device 300, without complicated operations, ensuring maintenance efficiency.

[0063] Reference Figure 8 , Figure 8 This is a cross-sectional view of an ion purification device according to a second aspect of the present invention. The ion purification device according to the second aspect of the present invention includes: a housing 100, a filter device 200, and a gas driving device 300.

[0064] The outer casing 100 has a receiving cavity 140 and an air inlet channel 150 and an air outlet channel 110 communicating with the receiving cavity 140. The receiving cavity 140 includes a storage area 141 and an air inlet area 142 distinct from the storage area 141. The storage area 141 is used to hold samples, and the air inlet channel 150 is used to allow external gas to enter the receiving cavity 140. The bottom wall of the air inlet channel 150 is defined as a guide wall 151, which guides the external gas entering from the air inlet 410 to the air inlet area 142. A filter device 200 is disposed at the air inlet channel 150 to filter the gas entering the receiving cavity 140. A gas driving device 300 is connected to the outer casing 100 to discharge the air in the receiving cavity 140 through the air outlet channel 110.

[0065] Specifically, in this embodiment, the outer casing 100 includes a storage area 141 and an air inlet area 142. The storage area 141 is used to store ion chromatography test samples, and the bottom wall of the air inlet channel 150 is used to guide the gas entering the receiving cavity 140, so that the external gas flows into the receiving cavity 140 towards the air inlet area 142, that is, the external gas entering the receiving cavity 140 will not be directly directed towards the storage area 141. Therefore, during use, the ion chromatography test sample can be placed in the storage area 141, and the gas driving device 300 and the filter device 200 can replace the unfiltered gas in the receiving cavity 140 without filtering the entire laboratory. This not only reduces the laboratory setup cost but also quickly improves the cleanliness of the sample environment. Furthermore, the gas entering the receiving cavity 140 from the outside will not be directly blown onto the sample, thereby reducing the risk of the unfiltered gas in the receiving cavity 140 coming into contact with the sample, thus reducing the risk of sample contamination and improving the accuracy of the sample test results.

[0066] Reference Figure 8 In some embodiments, the air intake channel 150 is located on the side wall of the housing 100, and the bottom wall of the air intake channel 150 is a guide wall 151. The guide wall 151 is inclined upward so that the gas entering the receiving cavity 140 through the air intake channel 150 flows inclined upward towards the air intake area 142 when it comes into contact with the guide wall 151. The uppermost edge of the air intake area 142 is higher than the uppermost edge of the guide wall 151. Specifically, in this embodiment, the storage area 141 is higher than the uppermost edge of the bottom wall of the air intake channel 150, thereby enabling the storage of sample containers of more sizes. Furthermore, the gas can flow inclined upward through the guiding effect of the guide wall 151 without directly impacting the sample container. It is not necessary to set the air intake channel 150 higher than the storage area 141, and the air intake channel 150 can be set larger, thereby increasing the air intake volume, improving the gas exchange efficiency in the receiving cavity 140, and thus shortening the filtration time.

[0067] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention. Furthermore, in the description of the present invention, the reference to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicates that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

Claims

1. An ion purification device, characterized in that, include: The outer shell has a receiving cavity and an air inlet channel and an air outlet channel communicating with the receiving cavity. The receiving cavity includes a storage area and an air inlet area that is different from the storage area. The storage area is used to hold a sample, and the air inlet channel is used to allow external gas to enter the receiving cavity. A flow guide is provided at the air intake channel to guide external gas entering from the air intake channel to the air intake area; A filter device is provided at the air inlet channel to filter the gas entering the receiving cavity; A gas-driven device, connected to the housing, is used to discharge gas from the receiving cavity through the gas outlet channel.

2. The ion purification equipment according to claim 1, characterized in that, The air intake channel is disposed on the side wall of the housing, the uppermost edge of the storage area is higher than the bottom wall of the air intake channel, and the storage area and the air intake channel are spaced apart in the horizontal direction. The air guide is inclined upward so that the external gas entering from the air intake channel flows obliquely upward; or, The ion purification device also includes a rotating shaft parallel to the horizontal direction. The flow guide is rotatably connected to the outer shell through the rotating shaft, so that the flow guide can rotate vertically relative to the outer shell to adjust the flow direction of the gas entering the receiving cavity through the air inlet channel.

3. The ion purification equipment according to claim 2, characterized in that, The outer shell has a body and a top, the top being connected to the top of the body and together with the body forming the receiving cavity; The shell includes a first sidewall and a second sidewall facing the first sidewall, the air intake channel is located on the first sidewall, and the inner wall of the shell top is smoothly connected to the second sidewall; or, The air intake channel is formed in the shell, the inner wall of the shell is a cylindrical surface, and the inner wall of the shell top is a spherical surface that is smoothly connected to the cylindrical surface.

4. The ion purification equipment according to claim 2, characterized in that, The ion purification device includes a plurality of flow guides distributed along the vertical direction, each of which can rotate independently relative to the outer shell in the vertical direction.

5. The ion purification equipment according to claim 4, characterized in that, The storage area extends horizontally to the air intake channel, and two adjacent air guides can abut against each other. When adjacent air guides abut against each other, the corresponding air intake channel area is closed.

6. The ion purification equipment according to claim 1, characterized in that, The air inlet channel of the outer casing is provided with the gas driving device. The ion purification equipment includes an adjustment mechanism, which includes an adjustment member. The adjustment member is movably connected to the air outlet channel of the outer casing and is used to adjust the opening and closing degree of the air outlet channel.

7. The ion purification equipment according to claim 1, characterized in that, The ion purification equipment also includes an air inlet pipe, which is connected to the outer wall of the housing and defines an air inlet chamber that communicates with the air inlet channel. The air inlet chamber has an air inlet, and the filter device is disposed at the air inlet and covers the air inlet. The air inlet is positioned upwards, and the gas driving device is located above the filter device; or... The air inlet is positioned downwards, and the gas driving device is located below the filter device.

8. The ion purification equipment according to claim 1, characterized in that, The filter device is detachably connected to the housing.

9. An ion purification device, characterized in that, include: The outer shell has a receiving cavity and an air inlet channel and an air outlet channel communicating with the receiving cavity. The receiving cavity includes a storage area and an air inlet area distinct from the storage area. The storage area is used to hold a sample. The air inlet channel is used to allow external gas to enter the receiving cavity, and the inner wall of the air inlet channel can guide the external gas entering from the air inlet channel to the air inlet area. A filter device is provided at the air inlet channel to filter the gas entering the receiving cavity; A gas-driven device, connected to the housing, is used to discharge gas from the receiving cavity through the gas outlet channel.

10. The ion purification equipment according to claim 9, characterized in that, The air intake channel is located on the side wall of the housing. The bottom wall of the air intake channel is a guide wall. The guide wall is inclined upward so that the gas entering the accommodating cavity through the air intake channel flows obliquely upward to the air intake area when it comes into contact with the guide wall. The uppermost edge of the air intake area is higher than the uppermost edge of the guide wall.

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