Water-free and oxygen-free storage cabinet

Abstract

The utility model discloses a water-free and oxygen-free storage cabinet which is formed by splicing and assembling one or more storage cabinet units, the upper side of a main cabinet body is provided with a nitrogen inlet, and the lower side of the main cabinet body is provided with a tail gas exhaust port; a unit gas inlet is formed in the upper side of each storage cabinet unit, a unit gas outlet is formed in the lower side of each storage cabinet unit, the unit gas inlets and the unit gas outlets are close to the two opposite side walls of the storage cabinet units respectively, and nitrogen sequentially flows through the unit gas inlets and the unit gas outlets from the nitrogen inlets. According to the storage cabinet, air left at dead corners in the box body can be removed, the structure is simple, the energy consumption is low, the maintenance cost is low, one or more storage cabinet units can be disassembled and assembled according to material specifications and storage spaces, the application occasions are multiple, and disassembly and assembly are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic chemical storage equipment, in particular to a water-free and oxygen-free storage cabinet. Background Art

[0002] Rare metals and their chlorides, such as hafnium tetrachloride and aluminum trichloride, are widely used in the pharmaceutical industry, fine organic synthesis, and high-end chip industry. Since these rare metals and their chlorides react strongly with water, are highly hygroscopic, and are easily hydrolyzed, they are difficult to store. If not properly stored, their subsequent use will be seriously affected.

[0003] The method commonly used in the market is to store them in a vacuum drying oven. However, the vacuum drying oven requires a vacuum system that can extract water vapor, which makes the equipment investment cost high, the operating cost high, and the vacuum system for extracting water vapor occupies a large area, which makes the storage capacity of the vacuum drying oven small. It is not suitable for the storage of rare metals and their chlorides of different specifications. There are few applicable scenarios, and the cost of applying it to industrial production is high and the operation is complicated. Summary of the invention

[0004] The utility model provides a water-free and oxygen-free storage cabinet to overcome the above technical problems.

[0005] In order to achieve the above purpose, the technical solution of the utility model is:

[0006] A water-free and oxygen-free storage cabinet, which is assembled by splicing one or more storage cabinet units, wherein the storage cabinet unit comprises a unit cabinet body and a unit door, wherein the unit door is openably arranged at a side opening of the unit cabinet body, and the unit cabinet bodies constitute a total cabinet body;

[0007] A nitrogen inlet is provided on the upper side of the main cabinet, and an exhaust gas discharge port is provided on the lower side of the main cabinet;

[0008] A unit air inlet is provided on the upper side of the storage cabinet unit, and a unit air outlet is provided on the lower side of the storage cabinet unit. The unit air inlet and the unit air outlet are respectively close to two opposite side walls of the storage cabinet unit. Nitrogen flows from the nitrogen inlet through the unit air inlet and the unit air outlet in sequence and is discharged from the exhaust gas outlet.

[0009] Furthermore, it also includes a dehumidifier placement groove, which is arranged on the inner wall of the unit cabinet.

[0010] Furthermore, the unit cabinet includes an inclined plate, which is arranged around the unit door and is inclined toward the center of the unit door.

[0011] Furthermore, it also includes a unit door fixing device, which includes a bracket, a beam, a threaded rod, a rotating handle and a fastener, one end of the bracket is fixedly connected to the inclined plates on both sides of the unit door, the two ends of the beam are detachably arranged in the groove of the bracket, a threaded hole is opened in the middle of the beam, the threaded rod passes through the threaded hole, the threaded rod is threadedly engaged with the threaded hole, the fastener is fixedly connected to the center of the unit door, one end of the threaded rod is rotationally engaged with the rotating shaft in the fastener, and the other end of the threaded rod is provided with the rotating handle.

[0012] Furthermore, a pressure regulating valve is provided at the nitrogen inlet, and a pressure gauge is provided at the tail gas discharge port.

[0013] Furthermore, the unit cabinet body is made of stainless steel, and the joints between the storage cabinet units are coated with glass glue.

[0014] Beneficial effects:

[0015] The utility model discloses a waterless and oxygen-free storage cabinet, wherein nitrogen enters through the unit air inlet on the upper side of each storage cabinet unit and is discharged through the unit air outlet on the lower side of each storage cabinet unit. Since the unit air inlet and the unit air outlet are respectively located on two opposite sides of the storage cabinet unit, the air in the storage cabinet unit box body is squeezed out during the downward flow of nitrogen, and the air remaining in the dead corners inside the box body can be cleared through reasonable airflow organization, thereby providing a dry storage environment for rare metals and their chlorides. The utility model has a simple structure, is easy to manufacture, is cheap, has low energy consumption, and has low maintenance costs, thereby reducing the storage cost of rare metals and their chlorides. The utility model can disassemble and assemble one or more storage cabinet units according to material specifications and storage space, and has many applicable occasions and is easy to disassemble and assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the internal structure of a water-free and oxygen-free storage cabinet disclosed in an embodiment of the utility model, which is formed by splicing two storage cabinet units up and down;

[0018] Figure 2 It is an axonometric diagram of a water-free and oxygen-free storage cabinet formed by splicing two storage cabinet units up and down in an embodiment of the utility model;

[0019] Figure 3 It is a partial enlarged view of the unit door fixing device disclosed in the embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of a water-free and oxygen-free storage cabinet formed by horizontally splicing two storage cabinet units disclosed in an embodiment of the utility model;

[0021] In the figure: 1. nitrogen inlet; 2. unit air inlet; 3. unit air outlet; 4. exhaust gas outlet; 5. storage cabinet unit; 51. unit cabinet body; 511. inclined plate; 52. unit door; 6. main cabinet body; 7. dehumidifier placement slot; 8. unit door fixing device; 81. bracket; 82. crossbeam; 821. threaded hole; 83. threaded rod; 84. rotating handle; 85. fastener. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1

[0024] This embodiment provides a water-free and oxygen-free storage cabinet, such as Figure 1-2 As shown, the storage cabinet unit 5 is assembled by splicing two storage cabinet units 5 up and down, and the storage cabinet unit 5 includes a unit cabinet body 51 and a unit door 52. The unit door 52 is openably arranged at the side opening of the unit cabinet body 51. The unit cabinet body 51 constitutes a total cabinet body 6;

[0025] A nitrogen inlet 1 is provided on the upper side of the main cabinet 6, and an exhaust gas outlet 4 is provided on the lower side of the main cabinet 6;

[0026] A unit air inlet 2 is provided on the upper side of the storage cabinet unit 5, and a unit air outlet 3 is provided on the lower side of the storage cabinet unit 5. The unit air inlet 2 and the unit air outlet 3 are respectively close to two opposite side walls of the storage cabinet unit 5. The nitrogen inlet 1 is connected with the unit air inlet 2 of the storage cabinet unit 5 located on the upper side through a pipeline, the unit air outlet 3 of the storage cabinet unit 5 located on the upper side is connected with the unit air inlet 2 of the storage cabinet unit 5 located on the lower side through a pipeline, and the unit air outlet 3 of the storage cabinet unit 5 located on the lower side is connected with the exhaust gas discharge port 4 through a pipeline.

[0027] In this embodiment, the storage cabinet units 5 are first assembled, and then the pipelines are installed according to the connection relationship. Nitrogen enters through the unit air inlet on the upper side of each storage cabinet unit and is discharged through the unit air outlet on the lower side of each storage cabinet unit. Since the unit air inlet and the unit air outlet are respectively located on the opposite sides of the storage cabinet unit, the air in the storage cabinet unit box is squeezed out during the downward flow of nitrogen. The air remaining in the dead corners inside the box can be removed through reasonable airflow organization, providing a dry storage environment for rare metals and their chlorides. The present application has a simple structure, is easy to manufacture, is cheap, has low energy consumption, and has low maintenance costs, thereby reducing the storage cost of rare metals and their chlorides. The present application can disassemble and assemble one or more storage cabinet units according to material specifications and storage space, is applicable to many occasions, and is easy to disassemble and assemble.

[0028] In a specific embodiment, a dehumidifier placement slot 7 is further included. The dehumidifier placement slot 7 is arranged on the inner wall of the unit cabinet 51. The dehumidifier placement slot 7 is used to place a dehumidifier, and the dehumidifier is used to remove moisture in the unit cabinet that has not been completely replaced.

[0029] In a specific embodiment, the unit cabinet body 51 includes an inclined plate 511, and the inclined plate 511 is arranged around the unit door 52. The inclined plate 511 is inclined toward the center of the unit door 52. The setting of the inclined plate 511 enables the opening of the storage cabinet unit 5 to form a trumpet mouth that converges toward the center, which can effectively block air from entering the interior of the storage cabinet unit 5 and at the same time increase the capacity of the storage cabinet unit 5.

[0030] In a specific embodiment, Figure 3As shown, it also includes a unit door fixing device 8, which includes a bracket 81, a crossbeam 82, a threaded rod 83, a rotating handle 84 and a fastener 85. One end of the bracket 81 is fixedly connected to the inclined plate 511 on both sides of the unit door 52, and the two ends of the crossbeam 82 are detachably arranged in the groove of the bracket 81. A threaded hole 821 is provided in the middle of the crossbeam 82, and the threaded rod 83 passes through the threaded hole 821. The threaded rod 83 is threadedly matched with the threaded hole 821. The fastener 85 is fixedly connected to the center of the unit door 52, and one end of the threaded rod 83 is rotatably matched with the rotating shaft in the fastener 85. The other end of the threaded rod 83 is provided with the rotating handle 84. When the unit door 52 needs to be opened, the rotating handle 84 is rotated. The handle 84 drives the threaded rod 83 to rotate, and the threaded rod 83 and the threaded hole 821 are threadedly matched, so that the threaded rod 83 can drive the unit door 52 to move in the direction away from the unit cabinet 51, so that the unit door 52 is loosened. At this time, the crossbeam 82 is lifted upward, and the unit door 52 is pulled outward, and the unit door 52 is opened; when the unit door 52 needs to be closed, the two ends of the crossbeam 82 are arranged in the grooves of the bracket 81, and the rotating handle 84 is rotated in opposite directions. The rotating handle 84 drives the threaded rod 83 to rotate, and then drives the unit door 52 to move in the direction of the unit cabinet 51 until the unit door 52 is tightly connected to the unit cabinet 51, so that the unit door 52 is fixed. This mechanism can realize the rapid opening and closing of the unit door.

[0031] In a specific embodiment, a pressure regulating valve is provided at the nitrogen inlet 1, and a pressure gauge is provided at the tail gas discharge port 6. The pressure regulating valve can adjust the pressure of the nitrogen supplied according to the working state, and the pressure gauge can detect the pressure value of the exhaust gas in real time.

[0032] In a specific embodiment, the unit cabinet body 51 is made of stainless steel, and the connection between the storage cabinet units 5 is coated with glass glue.

[0033] Example 2

[0034] This embodiment provides specific steps for loading materials into an anhydrous and anaerobic storage cabinet. Here, an anhydrous and anaerobic storage cabinet includes two storage cabinet units 5. Loading materials into the upper storage cabinet unit is taken as an example:

[0035] Step 1: Connect a nitrogen gas source to the nitrogen gas inlet 1, and adjust the nitrogen gas source pressure to 10 psi;

[0036] Step 2: Open the unit door 52 of the upper storage cabinet unit 5, and cover the unit air outlet 3 located in the upper storage cabinet unit 5 with a special cover plate to prevent the outside air from entering the lower storage cabinet unit 5 through the unit air outlet of the upper storage cabinet unit 5 when the upper storage cabinet unit 5 opens the unit door to load materials, thereby causing hydrolysis of the stored materials in the lower storage cabinet unit 5 and affecting material storage;

[0037] Step 3: Load the materials into the storage cabinet unit 5 on the upper side;

[0038] Step 4: Adjust the nitrogen gas source pressure to 15 psi, and after purging (blowing out debris inside the equipment) for 5 minutes, adjust the nitrogen gas source pressure to 10 psi. At this time, the outside air that enters when the storage cabinet unit 5 on the upper side is opened has been purged;

[0039] Step 5: Remove the dedicated cover plates of the two unit air outlets 3 of the storage cabinet unit 5 on the upper side, and close the unit door of the storage cabinet unit 5 on the upper side.

[0040] Step 6: Adjust the nitrogen gas source pressure to 15 psi, open the tail gas exhaust port 4, replace for 20 minutes, and discharge the residual air in the upper and lower two storage cabinet units 5 through the tail gas exhaust port 4;

[0041] Step 7: Close the exhaust valve.

[0042] Example 3

[0043] This embodiment provides a water-free and oxygen-free storage cabinet, such as Figure 4 As shown, the storage cabinet units 5 are assembled by horizontally splicing, the nitrogen inlet 1 is connected with the unit air inlets 2 of the two storage cabinet units 5 through pipelines, and the unit air outlets 3 of the two storage cabinet units 5 are connected with the respective exhaust gas discharge ports 4 through pipelines. According to the splicing method of the horizontal splicing method and the vertical up-and-down splicing method of the storage cabinet units 5, the storage cabinet units 5 can be stacked and assembled in any horizontal and vertical directions.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A water-free and oxygen-free storage cabinet, characterized in that: The storage cabinet unit (5) is assembled by splicing one or more storage cabinet units (5), wherein the storage cabinet unit (5) comprises a unit cabinet body (51) and a unit door (52), wherein the unit door (52) is openably arranged at a side opening of the unit cabinet body (51), and the unit cabinet body (51) constitutes a total cabinet body (6); The upper side of the main cabinet (6) is provided with a nitrogen inlet (1), and the lower side of the main cabinet (6) is provided with an exhaust gas discharge port (4); The upper side of the storage cabinet unit (5) is provided with a unit air inlet (2), and the lower side of the storage cabinet unit (5) is provided with a unit air outlet (3). The unit air inlet (2) and the unit air outlet (3) are respectively close to two opposite side walls of the storage cabinet unit (5). Nitrogen flows from the nitrogen inlet (1) through the unit air inlet (2) and the unit air outlet (3) in sequence and is discharged from the tail gas outlet (4).

2. The water-free and oxygen-free storage cabinet according to claim 1, characterized in that: It also includes a dehumidifier placement groove (7), and the dehumidifier placement groove (7) is arranged on the inner wall of the unit cabinet (51).

3. The water-free and oxygen-free storage cabinet according to claim 1, characterized in that: The unit cabinet (51) comprises an inclined plate (511), and the inclined plate (511) is arranged around the unit door (52), and the inclined plate (511) is inclined toward the center of the unit door (52).

4. The water-free and oxygen-free storage cabinet according to claim 3, characterized in that: The invention also comprises a unit door fixing device (8), wherein the unit door fixing device (8) comprises a bracket (81), a cross beam (82), a threaded rod (83), a rotating handle (84) and a fastener (85), wherein one end of the bracket (81) is fixedly connected to the inclined plates (511) on both sides of the unit door (52), and the two ends of the cross beam (82) are detachably arranged in the groove of the bracket (81), and a threaded hole (821) is provided in the middle of the cross beam (82), and the threaded rod (83) passes through the threaded hole (821), and the threaded rod (83) is threadedly matched with the threaded hole (821), and the fastener (85) is fixedly connected to the center of the unit door (52), and one end of the threaded rod (83) is rotationally matched with the rotating shaft in the fastener (85), and the other end of the threaded rod (83) is provided with the rotating handle (84).

5. The water-free and oxygen-free storage cabinet according to claim 1, characterized in that: A pressure regulating valve is provided at the nitrogen inlet (1), and a pressure gauge is provided at the tail gas discharge port (4).

6. The water-free and oxygen-free storage cabinet according to claim 1, characterized in that: The material of the unit cabinet body (51) is stainless steel, and the connection between the storage cabinet units (5) is coated with glass glue.

Images