Gas purification device and glove box

Abstract

The utility model relates to the technical field of glove boxes, and provides a gas purification device and a glove box, the gas purification device is suitable for being arranged outside a box chamber to be protected, the gas purification device comprises at least two adsorption modules, a first valve and a second valve, a circulating gas inlet of each adsorption module is connected with the to-be-protected box chamber, a circulating gas outlet of each adsorption module is connected with the to-be-protected box chamber, and each adsorption module is provided with a regenerated gas inlet and a regenerated gas outlet which are controllable in opening and closing states; a first valve is arranged at each circulating gas inlet, and a second valve is arranged at each circulating gas outlet. According to the arrangement, one adsorption module can be disconnected from the to-be-protected box chamber by controlling opening and closing of each valve so as to be regenerated or replaced, the other adsorption modules are kept connected with the to-be-protected box chamber, adsorption and filtration can still be performed, experiment operation in the to-be-protected box chamber does not need to be paused, and the experiment progress is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of glove boxes, in particular to a gas purification device and a glove box. Background Art

[0002] A glove box is a piece of laboratory equipment whose primary function is to provide an ultra-pure environment free of water, oxygen, and dust for various experimental operations. It removes oxygen, moisture, and organic gases by filling the box with high-purity inert gas and circulating and filtering out active substances. This filtration cycle primarily relies on a gas purification device, which draws the gas from the box into the device. The gas is then filtered and adsorbed by the adsorbent material within the device before being passed into the glove box. As the filtration cycle continues, the adsorption and filtration capacity of the adsorbent material within the device gradually decreases, necessitating regeneration or replacement.

[0003] In the prior art, when regenerating or replacing the adsorption material of the gas purification device, the gas purification device needs to be disconnected from the box, and the gas purification device cannot operate. At this time, the experimental operation in the box also needs to be suspended, affecting the experimental progress.

[0004] Therefore, how to solve the problem in the prior art that the gas purification device cannot operate when regenerating or replacing the adsorption material has become an important technical problem to be solved by those skilled in the art. Utility Model Content

[0005] The utility model provides a gas purification device and a glove box, which are used to solve the defect in the prior art that the gas purification device cannot operate when regenerating or replacing adsorption materials.

[0006] The utility model provides a gas purification device suitable for being arranged outside a chamber to be protected, the gas purification device comprising:

[0007] At least two adsorption modules are provided, the circulating gas inlet of each adsorption module is connected to the chamber to be protected, and the circulating gas outlet of each adsorption module is connected to the chamber to be protected. The adsorption module has a regeneration gas inlet and a regeneration gas outlet for regeneration gas, and the opening and closing states of the regeneration gas inlet and the regeneration gas outlet are controllable;

[0008] a first valve, disposed at the circulating gas inlet, wherein at least two first valves are provided, and each of the first valves corresponds to the circulating gas inlet one by one;

[0009] The second valve is provided at the circulating gas outlet. There are at least two second valves provided, and the second valves correspond to the circulating gas outlets one by one.

[0010] A gas purification device provided by the present invention also includes:

[0011] The regeneration module provides regeneration gas, and each of the regeneration gas inlets is connected to the regeneration module.

[0012] A gas purification device provided by the present invention also includes:

[0013] a third valve, disposed at the regeneration gas inlet, wherein at least two third valves are provided, and each third valve corresponds to each regeneration gas inlet one by one;

[0014] The fourth valve is provided at the regeneration gas outlet. There are at least two fourth valves provided, and the fourth valves correspond to the regeneration gas outlets one by one.

[0015] According to a gas purification device provided by the utility model, the first valve, the second valve, the third valve and the fourth valve are all solenoid valves.

[0016] A gas purification device provided by the present invention also includes:

[0017] The waste gas treatment module is suitable for recovering and treating the gas discharged from the regeneration gas outlet, and each of the regeneration gas outlets is connected to the waste gas treatment module.

[0018] According to a gas purification device provided by the present invention, the regeneration module includes:

[0019] The gas cylinder group stores regeneration gas, and each regeneration gas inlet is connected to the outlet of the gas cylinder group.

[0020] According to a gas purification device provided by the present invention, the adsorption module includes:

[0021] A shell having a receiving space therein;

[0022] Adsorption material is filled in the accommodation space.

[0023] According to a gas purification device provided by the present utility model, the housing includes:

[0024] a shell, wherein the shell is provided with an opening for the adsorption material to enter and exit;

[0025] A sealing plate is provided at the opening to seal the opening, and the sealing plate is detachably connected to the shell.

[0026] According to a gas purification device provided by the present invention, the adsorption modules are provided in two groups, and the adsorption objects of the adsorption materials of the two groups of adsorption modules are different.

[0027] The utility model also provides a glove box, comprising the above-mentioned gas purification device.

[0028] The gas purification device provided by the present invention is designed to be installed outside the chamber to be protected, avoiding occupying the internal space of the chamber to be protected. The adsorption material of the gas purification device can be regenerated or replaced outside the chamber to be protected, making operation convenient. The gas purification device includes an adsorption module, a first valve, and a second valve. There are at least two adsorption modules, and the circulating gas inlet of each adsorption module is connected to the chamber to be protected, and the circulating gas outlet of each adsorption module is connected to the chamber to be protected. The first valve is installed at the circulating gas inlet, and there are at least two first valves. The first valves correspond to the circulating gas inlets one-to-one, so that a first valve is installed at each circulating gas inlet. The second valve is installed at the circulating gas outlet, and there are at least two second valves. The second valves correspond to the circulating gas outlet one-to-one, so that a second valve is installed at each circulating gas outlet. When the first valves and the second valves are all in the open state, the gas in the chamber to be protected can enter the adsorption modules at the same time, and after being adsorbed and filtered, it can then flow back into the chamber to be protected at the same time. When the first valve and the second valve corresponding to a portion of the adsorption modules are closed, the portion of the adsorption modules is disconnected from the chamber to be protected. When the portion of the adsorption modules is replaced or regenerated, the atmosphere in the chamber to be protected is not affected. Moreover, the remaining adsorption modules remain connected to the chamber to be protected and can still adsorb and filter the gas in the chamber to be protected. In other words, the gas purification device can still operate normally, solving the problem of gas purification devices in the prior art being unable to operate when regenerating or replacing adsorption materials. There is no need to suspend experimental operations in the chamber to be protected, which does not affect the experimental progress and improves the utilization rate of the chamber to be protected.

[0029] The adsorption module is provided with a regeneration gas inlet and a regeneration gas outlet for the inflow and outflow of regeneration gas, and the opening and closing states of the regeneration gas inlet and the regeneration gas outlet are controllable.

[0030] Furthermore, the glove box provided by the present invention also has the various advantages described above because it is equipped with the gas purification device described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 It is a structural schematic diagram of the gas purification device provided by the utility model when connected to the chamber to be protected from one viewing angle.

[0033] Figure 2 It is a structural schematic diagram of the gas purification device provided by the present invention when connected to the chamber to be protected from another perspective.

[0034] Reference numerals:

[0035] 1. Adsorption module; 2. First valve; 3. Second valve; 4. Regeneration module; 5. Third valve; 6. Fourth valve; 7. Chamber to be protected. DETAILED DESCRIPTION

[0036] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0038] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0039] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0041] The following combination Figures 1 to 2 The gas purification device of the present invention is described.

[0042] like Figures 1 to 2 As shown, the gas purification device provided by the embodiment of the present invention is used to perform adsorption filtration on the gas in the protection chamber 7 to remove impurities in the gas.

[0043] The gas purification device provided in this embodiment is used to be arranged outside the box chamber to be protected 7, which can avoid occupying the internal space of the box chamber to be protected 7, and the adsorption material of the gas purification device can be regenerated or replaced outside the box chamber to be protected 7, which is convenient for operation.

[0044] The gas purification device in this embodiment includes an adsorption module 1 , a first valve 2 and a second valve 3 .

[0045] Specifically, at least two adsorption modules 1 are provided, and the circulating gas inlet of each adsorption module 1 is connected to the chamber to be protected 7 , and the circulating gas outlet of each adsorption module 1 is connected to the chamber to be protected 7 .

[0046] The first valve 2 is provided at the circulating gas inlet. There are at least two first valves 2 , and the first valves 2 correspond to the circulating gas inlets one by one, so that each circulating gas inlet is provided with a first valve 2 .

[0047] The second valve 3 is provided at the circulating gas outlet. There are at least two second valves 3 . The second valves 3 correspond to the circulating gas outlets one by one, so that each circulating gas outlet is provided with a corresponding second valve 3 .

[0048] When each first valve 2 and each second valve 3 are in the open state, the gas in the chamber to be protected 7 can enter each adsorption module 1 at the same time, and then flow back to the chamber to be protected 7 at the same time after being adsorbed and filtered.

[0049] When the first valve 2 and the second valve 3 corresponding to a part of the adsorption modules 1 are in a closed state, the part of the adsorption modules 1 is disconnected from the chamber to be protected 7. When the part of the adsorption modules 1 is replaced or regenerated, the atmosphere of the chamber to be protected 7 is not affected, ensuring that the materials in the chamber to be protected 7 are not affected by the regeneration or replacement operation. There is no need to clean the chamber to be protected 7 after the regeneration or replacement operation. Moreover, the remaining adsorption modules 1 remain connected to the chamber to be protected 7 and can still adsorb and filter the gas in the chamber to be protected 7. In other words, the gas purification device can still operate normally, which solves the problem of the gas purification device in the prior art that the gas purification device cannot operate when regenerating or replacing the adsorption material. There is no need to suspend the experimental operation in the chamber to be protected 7, which does not affect the experimental progress and improves the utilization rate of the chamber to be protected 7.

[0050] In the embodiment of the present invention, the gas purification device further includes a regeneration module 4, and the regeneration gas inlet of each adsorption module 1 is connected to the regeneration module 4. The regeneration module 4 is used to provide regeneration gas, and after the regeneration gas is passed into the adsorption module 1, the adsorption module 1 can be regenerated.

[0051] The composition of the regeneration gas needs to be determined based on the atmosphere within the chamber to be protected. When the atmosphere within the chamber to be protected is nitrogen, a mixture of hydrogen and nitrogen can be used as the regeneration gas. Specifically, the hydrogen composition should be 5% and the nitrogen composition should be 95%. Similarly, when the atmosphere within the chamber to be protected is argon, a mixture of hydrogen and argon can be used as the regeneration gas.

[0052] The gas purification device itself has a regeneration module 4, which can provide regeneration gas by itself, has low dependence on the outside world, and does not require additional assembly.

[0053] In other embodiments, the gas purification device itself is not equipped with a regeneration module 4, and only has a regeneration gas inlet and a regeneration gas outlet. When the adsorption module 1 needs to be regenerated, the regeneration gas inlet needs to be connected to the corresponding gas supply device in the laboratory where the chamber to be protected 7 is located. Additional assembly is required, and the degree of dependence on the external environment is relatively high.

[0054] The gas purification device further includes an exhaust gas treatment module, to which each regeneration gas outlet is connected. Regeneration gas provided by regeneration module 4 passes through adsorption module 1 and is discharged from the regeneration gas outlet. The gas discharged from the regeneration gas outlet contains a high level of impurities and cannot be reused. Instead, it can be recovered and treated in the exhaust gas treatment module to avoid environmental pollution.

[0055] In other embodiments, the gas purification device itself is not equipped with an exhaust gas treatment module, and the regeneration gas outlet is directly connected to the outside atmosphere or connected to a gas collection device. Directly connecting the regeneration gas outlet to the outside atmosphere will pollute the environment, while connecting the regeneration gas outlet to a gas collection device will require frequent replacement and transportation of the gas collection device due to its limited capacity, resulting in high transportation costs.

[0056] It should be emphasized that the gas purification device provided in the embodiment of the present invention has both a regeneration module 4 and an exhaust gas treatment module, with a high degree of integration, forming a skid-mounted structure, and has the advantages of compact structure, convenient transportation, easy use, and small footprint.

[0057] In this embodiment, the gas purification device further includes a third valve 5 and a fourth valve 6 .

[0058] The third valve 5 is provided at the regeneration gas inlet and is used to control the opening and closing state of the regeneration gas inlet. At least two third valves 5 are provided, and each third valve 5 corresponds to a regeneration gas inlet, so that each regeneration gas inlet is provided with a third valve 5. The opening and closing states of the regeneration gas inlets are independent of each other and do not affect each other.

[0059] The fourth valve 6 is provided at the regeneration gas outlet and is used to control the opening and closing state of the regeneration gas outlet. At least two fourth valves 6 are provided, and each fourth valve 6 corresponds to a regeneration gas outlet. Thus, each regeneration gas outlet is provided with a corresponding fourth valve 6. The opening and closing states of the regeneration gas outlets are independent of each other and do not affect each other.

[0060] Moreover, the circulating gas inlet, circulating gas outlet, regeneration gas inlet and regeneration gas outlet of each adsorption module 1 are independent of each other, and the corresponding valves are independent of each other and do not affect each other.

[0061] In other embodiments, the adsorption module 1 has only one gas inlet and one gas outlet. The gas inlet is connected to the chamber to be protected 7 and the regeneration module 4 through two branch pipes, and the gas outlet is connected to the chamber to be protected 7 and the exhaust gas treatment module through two branch pipes. A reversing valve is provided at the gas inlet. By switching the working position of the valve core of the reversing valve, one of the chamber to be protected 7 and the regeneration module 4 can be connected to the gas inlet of the adsorption module 1. A reversing valve is provided at the gas outlet. By switching the working position of the valve core of the reversing valve, one of the chamber to be protected 7 and the exhaust gas treatment module can be connected to the gas outlet of the adsorption module 1. The on-off conditions between the adsorption module 1 and the chamber to be protected 7 and the on-off conditions between the adsorption module 1 and the regeneration module 4 are associated, and the on-off conditions between the adsorption module 1 and the chamber to be protected 7 and the on-off conditions between the adsorption module 1 and the exhaust gas treatment module are associated. The structure is complicated and inconvenient for inspection and maintenance.

[0062] In the embodiment of the present invention, the first valve 2, the second valve 3, the third valve 5, and the fourth valve 6 are all configured as solenoid valves. The solenoid valves can be electrically connected to a control system. By controlling the operation of each solenoid valve through the control system, automated control of the gas purification device can be achieved, which is conducive to the advancement of intelligentization, reduces manual operation, and reduces labor intensity.

[0063] After connecting the first valve 2, the second valve 3, the third valve 5 and the fourth valve 6 to the control system, the control system can be used to regenerate each adsorption module 1 in sequence according to a predetermined order, so that the adsorption material of each adsorption module 1 is always in a relatively optimal state, avoiding the problem of the purity of the gas atmosphere in the protected chamber 7 not being guaranteed due to regeneration when the adsorption material of the adsorption module 1 is about to fail to meet the requirements.

[0064] In other embodiments, the first valve 2, the second valve 3, the third valve 5, and the fourth valve 6 are all configured as pneumatic valves or manual valves. Pneumatic valves use compressed air as a power source and require the use of an air compressor. They are complex in structure, occupy a large space, and are expensive. Manual valves require manual control to open and close, which is not conducive to the advancement of intelligent systems.

[0065] In the embodiment of the present invention, the regeneration module 4 includes a gas cylinder group, in which regeneration gas is stored. The regeneration gas has a certain pressure in the gas cylinder group.

[0066] It should be noted that the gas cylinder group may include only one gas cylinder or multiple gas cylinders, and the number of gas cylinders is not specifically limited here.

[0067] Each regeneration gas inlet is connected to the outlet of the gas cylinder group. When the third valve 5 is in the open state, the gas in the gas cylinder group automatically flows to the adsorption module 1.

[0068] It should be noted that a control valve is provided at the outlet of the gas cylinder assembly to control the opening and closing of the outlet of the gas cylinder assembly. When the gas cylinder assembly is used to supply regeneration gas to the adsorption module 1, the control valve needs to be switched to the open state. When the regeneration gas supply needs to be stopped, the control valve is switched to the closed state.

[0069] In this embodiment, the adsorption module 1 includes a shell and an adsorption material. The interior of the shell has a containing space. The circulating gas inlet, circulating gas outlet, regeneration gas inlet and regeneration gas outlet are all arranged in the shell.

[0070] The adsorption material is filled in the accommodation space. After the circulating gas enters the interior of the shell through the circulating gas inlet, it can pass through the adsorption material before being discharged from the circulating gas outlet. Similarly, after the regeneration gas enters the interior of the shell through the regeneration gas inlet, it can pass through the adsorption material before being discharged from the regeneration gas outlet.

[0071] In some embodiments, the housing may be configured to be cylindrical, and the adsorption material may also be cylindrical.

[0072] In this embodiment, the housing includes a shell and a sealing plate. The shell is used to provide a storage space. An opening is provided on the shell for allowing the adsorption material to enter and exit the storage space. The sealing plate is provided at the opening to seal the opening.

[0073] The sealing plate is detachably connected to the shell to control the opening and closing state of the opening.

[0074] When the adsorbent material needs to be replaced, the sealing plate can be removed from the housing, opening it for replacement. After replacing the adsorbent material, the sealing plate is reinstalled over the housing opening to seal it and ensure a tight seal. This arrangement only requires replacing the adsorbent material, while the housing can be reused, reducing maintenance costs for the gas purification device.

[0075] Specifically, a slot can be provided on the housing, and the sealing plate can be plugged into the slot of the housing by plugging. Alternatively, connecting holes can be provided on both the housing and the sealing plate, and the sealing plate and the housing can be connected together by bolts and nuts.

[0076] In other embodiments, the adsorption module 1 may be directly replaced, that is, the shell and the adsorption material are replaced as a whole, which may result in a waste of resources and a high maintenance cost for the gas purification device.

[0077] In the embodiment of the present invention, two groups of adsorption modules 1 are provided. The adsorption objects of the adsorption materials of the two groups of adsorption modules 1 are different. Each group of adsorption modules 1 is provided with at least two adsorption modules.

[0078] Specifically, the adsorption modules 1 are divided into a first group of adsorption modules 1 and a second group of adsorption modules 1. The adsorption materials in the first group of adsorption modules 1 primarily adsorb water and oxygen, while the adsorption materials in the second group of adsorption modules 1 primarily adsorb dust. The gas purification device incorporates both adsorption modules 1, enhancing its adsorption performance. During implementation, both modules can be selectively used based on specific needs.

[0079] For example, when it is necessary to adsorb and filter out water, oxygen, and dust at the same time, both the first adsorption module 1 and the second adsorption module 1 can be put into use. The first adsorption module 1 can remove water and oxygen from the circulating gas passing through its internal adsorption material, and the second adsorption module 1 can remove dust from the circulating gas passing through its internal adsorption material. The circulating gas circulates between the chamber to be protected 7 and each adsorption module 1, so as to maintain the gas atmosphere in the chamber to be protected 7 free of water, oxygen, and dust. At least two of the first adsorption module 1 and the second adsorption module 1 are provided. The first adsorption module 1 can be regenerated or replaced in turn, and the second adsorption module 1 can be regenerated or replaced in turn, without affecting the gas atmosphere in the chamber to be protected 7.

[0080] In the case where only water and oxygen need to be adsorbed and filtered out, the first group of adsorption modules 1 can be put into use, and the opening and closing states of the valves corresponding to the first group of adsorption modules 1 can be controlled as needed, and the valves corresponding to the second group of adsorption modules 1 can be kept closed. The first group of adsorption modules 1 can remove water and oxygen from the circulating gas passing through its internal adsorption material. The circulating gas circulates between the chamber to be protected 7 and each adsorption module 1, which can maintain the gas atmosphere in the chamber to be protected 7 free of water and oxygen. There are at least two first adsorption modules 1, which can be regenerated or replaced in turn without affecting the gas atmosphere in the chamber to be protected 7.

[0081] It should be noted that before the gas purification device is put into use, the housing of each adsorption module 1 may not be pre-installed with adsorption material. When the device is put into use, adsorption material with corresponding adsorption performance is filled into the housing according to specific adsorption requirements.

[0082] The gas purification device provided in this embodiment includes n adsorption modules 1 , namely, adsorption module 1 - 1 , adsorption module 1 - 2 . . . adsorption module 1 - n.

[0083] The valves corresponding to the adsorption module 1 - 1 are respectively a first valve 2 - 1 , a second valve 3 - 1 , a third valve 5 - 1 and a fourth valve 6 - 1 .

[0084] The valves corresponding to the adsorption module 1 - 2 are respectively a first valve 2 - 2 , a second valve 3 - 2 , a third valve 5 - 2 and a fourth valve 6 - 2 .

[0085] Similarly, the valves corresponding to the adsorption modules 1 - n are respectively the first valve 2 - n , the second valve 3 - n , the third valve 5 - n and the fourth valve 6 - n .

[0086] The specific process of the gas purification device provided in this embodiment is as follows.

[0087] Each first valve 2 and second valve 3 is in the open state, each third valve 5 and fourth valve 6 is in the closed state, and each adsorption module 1 is connected to the chamber to be protected 7 to form a loop. At this time, each adsorption module 1 of the gas purification device is in a cyclic adsorption state.

[0088] When the adsorption performance of the adsorption material in the adsorption module 1-n is insufficient, the first valve 2-n and the second valve 3-n are controlled to be closed, and the other first valves 2 and second valves 3 remain open, and the third valve 5-n and the fourth valve 6-n are controlled to be opened, and the other third valves 5 and the fourth valve 6 remain closed. At this time, the adsorption module 1-n of the gas purification device is disconnected from the chamber to be protected 7, and the adsorption module 1-n is connected to the regeneration module 4. Regeneration gas can be introduced into the adsorption module 1-n through the regeneration module 4. The adsorption module 1-n is in the regeneration state, and the other adsorption modules 1 are still in the circulating adsorption state.

[0089] After the regeneration process of the adsorption module 1 - n is completed, the third valve 5 - n and the fourth valve 6 - n are closed, and the first valve 2 - n and the second valve 3 - n are opened to restore the adsorption module 1 - n to the cyclic adsorption state.

[0090] Then, according to the conditions of the adsorption materials of the remaining adsorption modules 1, one or more adsorption modules 1 are selected for regeneration. For example, if the adsorption performance of the adsorption material of the adsorption module 1-1 is insufficient, the adsorption module 1-1 is selected for regeneration. At this time, the first valve 2-1 and the second valve 3-1 can be controlled to be closed, and the remaining first valves 2 and second valves 3 can remain open. The third valve 5-1 and the fourth valve 6-1 are controlled to be open, and the remaining third valve 5 and the fourth valve 6 remain closed. At this time, the adsorption module 1-1 of the gas purification device is disconnected from the chamber to be protected 7, and the adsorption module 1-1 is connected to the regeneration module 4. Regeneration gas can be introduced into the adsorption module 1-1 through the regeneration module 4. The adsorption module 1-1 is in the regeneration state, and the remaining adsorption modules 1 are still in the circulating adsorption state.

[0091] After the regeneration process of the adsorption module 1 - 1 is completed, the third valve 5 - 1 and the fourth valve 6 - 1 are closed, and the first valve 2 - 1 and the second valve 3 - 1 are opened to restore the adsorption module 1 - 1 to the cyclic adsorption state.

[0092] When the adsorption performance of the adsorption material of one of the adsorption modules 1, such as the adsorption module 1-n, cannot meet the requirements through the regeneration operation, the first valve 2-n and the second valve 3-n are controlled to be closed. At this time, the third valve 5-n and the fourth valve 6-n are also in a closed state. At this time, the adsorption module 1-n stops working. The adsorption module 1-n can be replaced or the adsorption material in the adsorption module 1-n can be replaced. The remaining adsorption modules 1 can perform cyclic adsorption or regeneration normally.

[0093] After the replacement operation is completed, the third valve 5-n and the fourth valve 6-n are first controlled to open, causing the adsorption module 1-n to enter a regeneration state. This removes the water and oxygen adsorbed by the adsorption material of the adsorption module 1-n during storage, ensuring the adsorption and filtration capacity of the newly replaced adsorption module 1-n. The third valve 5-n and the fourth valve 6-n are then controlled to close, and the first valve 2-n and the second valve 3-n are controlled to open, causing the adsorption module 1-n to enter a cyclic adsorption state.

[0094] Similarly, the remaining adsorption modules 1 may be replaced or the adsorption materials of the remaining adsorption modules 1 may be replaced.

[0095] According to a large amount of statistics, the adsorption material of the adsorption module 1 needs to be regenerated every 3,000 hours and needs to be replaced after an average of 8,000 hours of use. Each regeneration operation takes 24 hours and each replacement operation takes 48 hours.

[0096] In the prior art, the water and oxygen data of the chamber to be protected 7 during operation are as shown in the following table.

[0097] Working hours (h) Glove box water content (ppm) Glove box oxygen value (ppm) Remark 100 0.1 0.1 1000 0.1 17.18 2000 0.1 36.99 3000 0.17 49.88 4000 0.1 0.1 After regeneration 5000 0.1 19.12

[0098] The water and oxygen data of the chamber to be protected 7 connected to the gas purification device provided in this embodiment during operation are shown in the following table.

[0099] Working hours (h) Glove box water content (ppm) Glove box oxygen value (ppm) Remark 100 0.1 0.1 1000 0.1 0.1 2000 0.1 0.1 3000 0.1 0.1 4000 0.1 0.1 5000 0.1 0.1

[0100] After using the gas purification device provided by the embodiment of the present invention, the time-consuming regeneration and replacement operations can be saved, the annual utilization rate of the protection chamber 7 is increased by 30%, and the water and oxygen control capability is also greatly improved.

[0101] To sum up, the gas purification device provided in the embodiment of the present invention can realize the batch regeneration and replacement of the adsorption material of the adsorption module 1 by controlling the opening and closing states of the first valve 2, the second valve 3, the third valve 5 and the fourth valve 6, thereby avoiding the impact on the protection chamber 7, ensuring the adsorption efficiency of the adsorption module 1, and improving the water and oxygen control effect and the utilization rate of the protection chamber 7.

[0102] On the other hand, an embodiment of the present invention further provides a glove box comprising the gas purification device provided by any of the above-described embodiments. The gas purification device provided by the above-described embodiments can continue to operate normally during regeneration or replacement of the adsorbent material, thereby avoiding any impact on experimental operations within the protective chamber 7. Therefore, the glove box in this embodiment has the advantage of high utilization, and experimental operations within it can continue uninterrupted, ensuring experimental progress. The derivation process for the beneficial effects of the glove box in the embodiment of the present invention is generally similar to the derivation process for the beneficial effects of the above-described gas purification device, and therefore will not be repeated here.

[0103] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A gas purification device, characterized in that: The gas purification device is arranged outside the chamber to be protected, and comprises: an adsorption module, at least two of which are provided, the circulating gas inlet of each of the adsorption modules is connected to the chamber to be protected, the circulating gas outlet of each of the adsorption modules is connected to the chamber to be protected, the adsorption module has a regeneration gas inlet and a regeneration gas outlet for the regeneration gas to enter and exit, and the opening and closing states of the regeneration gas inlet and the regeneration gas outlet are controllable; A first valve, disposed at the circulating gas inlet, wherein at least two first valves are provided, and the first valves correspond to the circulating gas inlets one by one; The second valve is arranged at the circulating gas outlet, and at least two second valves are arranged, and the second valves correspond to the circulating gas outlets one by one.

2. The gas purification device according to claim 1, characterized in that: Also includes: The regeneration module provides regeneration gas, and each of the regeneration gas inlets is connected to the regeneration module.

3. The gas purification device according to claim 1 or 2, characterized in that: Also includes: A third valve, disposed at the regeneration gas inlet, wherein at least two third valves are provided, and the third valves correspond to the regeneration gas inlets one by one; The fourth valve is arranged at the regeneration gas outlet. There are at least two fourth valves, and the fourth valves correspond to the regeneration gas outlets one by one.

4. The gas purification device according to claim 3, characterized in that: The first valve, the second valve, the third valve and the fourth valve are all solenoid valves.

5. The gas purification device according to claim 1, characterized in that: Also includes: The waste gas treatment module is suitable for recovering and treating the gas discharged from the regeneration gas outlet, and each of the regeneration gas outlets is connected to the waste gas treatment module.

6. The gas purification device according to claim 2, characterized in that: The regeneration module comprises: The gas cylinder group stores regeneration gas, and each of the regeneration gas inlets is connected to the outlet of the gas cylinder group.

7. The gas purification device according to claim 1, characterized in that: The adsorption module comprises: A shell having a receiving space therein; The adsorption material is filled in the containing space.

8. The gas purification device according to claim 7, characterized in that: The housing comprises: A shell, wherein the shell is provided with an opening for the adsorption material to enter and exit; A sealing plate is arranged at the opening to seal the opening, and the sealing plate is detachably connected to the shell.

9. The gas purification device according to claim 7, characterized in that: The adsorption modules are provided in two groups, and the adsorption objects of the adsorption materials of the two groups of adsorption modules are different.

10. A glove box, characterized in that: The method comprises the gas purification device according to any one of claims 1 to 9.

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