Nitrogen sealing device for electronic grade sulfuric acid finished product storage tank

Abstract

The utility model discloses a nitrogen sealing device for an electronic grade sulfuric acid finished product storage tank, which comprises a main body assembly and a nitrogen sealing device, the protection assembly comprises a protection frame connected to the lower surface of the nitrogen cylinder; the fixing assembly comprises fixing plates connected to the surfaces of the front side and the rear side of the protection frame, springs arranged on the surfaces of the inner sides of the fixing plates, fixing frames connected to the inner sides of the springs and movable columns movably connected to the bottoms of the fixing frames, the movable columns are sleeved with connecting pipes, the surfaces of the inner sides of the connecting pipes are connected with square frames, and square plates are arranged on the surfaces of the outer sides of the square frames; and magnets are arranged in the inner sides of the movable columns. According to an existing nitrogen sealing device, nitrogen is provided through a nitrogen cylinder, so that a protection environment is formed, when the nitrogen cylinder is stored, the nitrogen cylinder needs to be protected, a method for protecting the nitrogen cylinder through a protection frame is adopted, the structure is not stable enough, and when the protection frame is subjected to impact force, the nitrogen cylinder shakes; therefore, the nitrogen sealing effect of the electronic-grade sulfuric acid finished product storage tank is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of nitrogen sealing devices, in particular to a nitrogen sealing device for an electronic-grade finished sulfuric acid storage tank. Background Art

[0002] The electronic grade sulfuric acid finished product storage tank nitrogen packaging device mainly injects high-purity nitrogen into the storage tank to form a nitrogen protection environment to prevent sulfuric acid from contacting and reacting with moisture and other harmful substances in the air. The purpose of this is to prevent sulfuric acid from being contaminated, diluted or decomposed, maintain its purity and concentration, ensure the quality and stability of electronic grade sulfuric acid products, and meet the electronics industry's demand for high-purity sulfuric acid.

[0003] However, it still has the following disadvantages in actual use:

[0004] The existing nitrogen sealing device provides nitrogen through a nitrogen cylinder to form a protective environment. When the nitrogen cylinder is stored, it is necessary to protect the nitrogen cylinder. The method of using a protective frame to protect the nitrogen cylinder has an unstable structure. When the protective frame is hit, the nitrogen cylinder will shake, thereby affecting the nitrogen sealing effect of the electronic grade sulfuric acid product storage tank. Utility Model Content

[0005] Technical solutions to be solved

[0006] The utility model aims to provide a nitrogen sealing device for a storage tank of finished electronic-grade sulfuric acid products, so as to solve the problem raised in the above-mentioned background technology that the existing nitrogen sealing device provides nitrogen through a nitrogen cylinder to form a protective environment. When the nitrogen cylinder is stored, it is necessary to protect the nitrogen cylinder. The method of using a protective frame to protect the nitrogen cylinder has an unstable structure. When the protective frame is subjected to an impact force, the nitrogen cylinder will shake, thereby affecting the effect of nitrogen sealing on the storage tank of finished electronic-grade sulfuric acid products.

[0007] Technical Solution

[0008] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0009] The utility model is a nitrogen sealing device for a storage tank of electronic grade sulfuric acid product, comprising:

[0010] Main assembly, including nitrogen cylinder;

[0011] A protection assembly, including a protection frame connected to the lower surface of the nitrogen cylinder;

[0012] The fixing assembly includes a fixing plate connected to the front and rear surfaces of the protection frame, a spring arranged on the inner surface of the fixing plate, a fixing frame connected to the inner side of the spring, and a movable column movably connected to the bottom of the fixing frame.

[0013] Furthermore, the movable column is sleeved with a connecting pipe on the outside, the inner surface of the connecting pipe is connected with a square frame, the outer surface of the square frame is provided with a square plate, and the inner side of the movable column is provided with a magnet;

[0014] Specifically, the square frame is used to limit the square plate so that the movable column can keep moving inside the connecting tube. Since the fixed frame is made of stainless steel, the movable column can be connected to the fixed frame under the magnetic effect of the magnet, and the connection between the fixed frame and the nitrogen cylinder is more stable.

[0015] Furthermore, the protection assembly also includes a base connected to the outer surface of the bottom end of the protection frame, a hinge arranged on the left side of the rear end of the protection frame, and a cabinet door connected to the hinge surface;

[0016] Wherein, the inner surface of the cabinet door is connected to the fixing plate;

[0017] Specifically, the provided base is used to fix the protection frame at a desired position, and the cabinet door can be opened and closed under the action of the hinge.

[0018] Furthermore, a door lock is arranged inside the right side of the cabinet door, a first connecting plate is arranged inside the top of the protection frame, and a second connecting plate is connected to the left side of the first connecting plate;

[0019] Specifically, with the door lock set, the connection between the cabinet door and the protective frame is more stable, and the first connecting plate and the second connecting plate are set to adjust the opening and closing state of the top of the protective frame.

[0020] Furthermore, a silicone pad is provided on the outer surface of the first connecting plate, a connecting groove is provided inside the second connecting plate, and the silicone pad is connected to the connecting groove;

[0021] Specifically, when the silicone pad is installed in the connecting groove, the first connecting plate and the second connecting plate can be tightly connected.

[0022] Furthermore, the upper surfaces of the first connecting plate and the second connecting plate are connected to a limit frame, the limit frame is movably connected to the limit column inside, and the outer surfaces of both sides of the first connecting plate and the second connecting plate are connected to handles;

[0023] Specifically, by placing the limiting column inside the limiting frame, the first connecting plate and the second connecting plate are limited inside the protective frame, and the handle facilitates the application of pushing or pulling force to the first connecting plate and the second connecting plate.

[0024] Furthermore, the main body assembly also includes a first delivery pipe connected to the output port of the nitrogen bottle, a gas supply valve arranged on the left side of the first delivery pipe, a second delivery pipe connected to the left side of the gas supply valve, and a finished product storage tank arranged at the bottom end of the second delivery pipe;

[0025] Specifically, nitrogen is transported to the inside of the second delivery pipe through the first delivery pipe through the air supply valve, and the second delivery pipe transports the nitrogen to the finished product storage tank. The air supply valve can control the flow rate and start and stop of the nitrogen delivery.

[0026] Beneficial Effects

[0027] Compared with the prior art, the advantages of the present invention are:

[0028] 1. The utility model provides a fixing frame, and when the nitrogen bottle is placed in the protection frame, the nitrogen bottle can be clamped in the protection frame. When the protection frame is subjected to impact force, the nitrogen bottle is still stably fixed in the required position, and under the setting of the spring, the force exerted on the nitrogen bottle can be buffered, so that the nitrogen bottle can operate stably.

[0029] 2. Based on beneficial effect 1, with the coordinated use of the protective component, when the silicone pad is fixed inside the connecting groove, the first connecting plate and the second connecting plate are precisely connected, and the cabinet door closes the rear of the protective frame, the nitrogen bottle can be sealed and fixed inside the protective frame. If the outside of the nitrogen bottle is damaged, the leaked nitrogen can be sealed inside the protective frame to prevent the nitrogen from spreading into the air, greatly improving the safety of the working environment.

[0030] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0033] Figure 2 is a cross-sectional view of the first connecting plate of the utility model;

[0034] Figure 3 This is a structural diagram of a nitrogen bottle of the present utility model;

[0035] Figure 4 It is a structural diagram of the movable column of the utility model.

[0036] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0037] 11. Finished product storage tank; 12. Gas supply valve; 13. Nitrogen cylinder; 14. First delivery pipe; 15. Second delivery pipe;

[0038] 21. Protective frame; 22. Base; 23. Hinge; 24. Cabinet door; 25. Door lock; 26. First connecting plate; 261. Silicone pad; 27. Second connecting plate; 271. Connecting groove; 28. Limiting frame; 29. ​​Limiting column; 291. Handle;

[0039] 31. Fixed plate; 32. Spring; 33. Fixed frame; 34. Movable column; 35. Connecting pipe; 36. Square plate; 37. Magnet; 38. Square frame. DETAILED DESCRIPTION

[0040] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0041] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0042] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0043] Embodiment 1

[0044] See also Figure 1 , Figure 3 and Figure 4 As shown, this embodiment is a nitrogen sealing device for an electronic grade sulfuric acid product storage tank, comprising:

[0045] A main assembly, including a nitrogen bottle 13;

[0046] A protection assembly, comprising a protection frame 21 connected to the lower surface of the nitrogen bottle 13;

[0047] The fixing assembly includes a fixing plate 31 connected to the front and rear surfaces of the protection frame 21, a spring 32 arranged on the inner surface of the fixing plate 31, a fixing frame 33 connected to the inner side of the spring 32, and a movable column 34 movably connected to the bottom of the fixing frame 33;

[0048] The movable column 34 is sleeved with a connecting pipe 35 on its outer side, the inner surface of the connecting pipe 35 is connected with a square frame 38, the outer surface of the square frame 38 is provided with a square plate 36, and the inner side of the movable column 34 is provided with a magnet 37;

[0049] To understand how to use the fixed components, the following steps are published;

[0050] When the nitrogen bottle 13 is pushed to the inner surface of the fixing frame 33, the movable column 34 connected to the bottom end of the fixing frame 33 moves synchronously inside the connecting pipe 35. When the cabinet door 24 is closed, the fixing frame 33 on the inner side of the fixing plate 31 connected to the cabinet door 24 fits with the nitrogen bottle 13, so that the nitrogen bottle 13 can be clamped on the inner side of the fixing frame 33.

[0051] The movable column 34 and the connecting pipe 35 provided at the bottom of the fixing frame 33 make the connection between the fixing frame 33 and the nitrogen cylinder 13 more stable, and prevent the fixing frame 33 from shaking up and down. The square frame 38 is used to limit the square plate 36, so that the movable column 34 can keep moving inside the connecting pipe 35. Since the fixing frame 33 is made of stainless steel, the movable column 34 is connected to the fixing frame 33 under the magnetic effect of the magnet 37.

[0052] This step can more stably fix the nitrogen cylinder 13 inside the protection frame 21.

[0053] Embodiment 2

[0054] See also Figure 1 and Figure 2 As shown, this embodiment is based on the above-mentioned embodiment 1 and further includes a protection component: the protection component also includes a base 22 connected to the outer surface of the bottom end of the protection frame 21, a hinge 23 arranged on the left side of the rear end of the protection frame 21, and a cabinet door 24 connected to the surface of the hinge 23;

[0055] Wherein, the inner surface of the cabinet door 24 is connected to the fixing plate 31;

[0056] A door lock 25 is provided inside the right side of the cabinet door 24, a first connecting plate 26 is provided inside the top of the protection frame 21, and a second connecting plate 27 is connected to the left side of the first connecting plate 26;

[0057] A silicone pad 261 is disposed on the outer surface of the first connecting plate 26, and a connecting groove 271 is formed inside the second connecting plate 27, and the silicone pad 261 is connected to the connecting groove 271;

[0058] The upper surfaces of the first connecting plate 26 and the second connecting plate 27 are connected to the limit frame 28, and the limit column 29 is movably connected inside the limit frame 28. The outer surfaces of both sides of the first connecting plate 26 and the second connecting plate 27 are connected to handles 291;

[0059] When the nitrogen cylinder 13 is fixed;

[0060] Place the first connecting plate 26 and the second connecting plate 27 on the top of the protection frame 21, apply an inward squeezing force to the first connecting plate 26 and the second connecting plate 27, so that the silicone pad 261 is fixed inside the connecting groove 271, align the limiting column 29 with the limiting frame 28, apply a downward force to the limiting column 29, so that the limiting column 29 is fixed inside the limiting frame 28, and after the cabinet door 24 is closed under the action of the hinge 23, the door lock 25 is locked;

[0061] When taking out the nitrogen bottle 13;

[0062] After unlocking the door lock 25, the cabinet door 24 is opened under the action of the hinge 23, and an upward force is applied to the limit column 29 to remove the limit column 29 from the inside of the limit frame 28, and then the hand is placed on the handle 291; an outward pulling force is applied to the first connecting plate 26 and the second connecting plate 27 to pull the first connecting plate 26 and the second connecting plate 27 out of the inside of the protective frame 21;

[0063] This step can fix the nitrogen cylinder 13 in a sealed environment.

[0064] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A nitrogen sealing device for a storage tank of finished electronic grade sulfuric acid, characterized in that: include: A main assembly, including a nitrogen bottle (13); A protection assembly, comprising a protection frame (21) connected to the lower surface of the nitrogen bottle (13); The fixing assembly comprises a fixing plate (31) connected to the front and rear surfaces of the protection frame (21), a spring (32) arranged on the inner surface of the fixing plate (31), a fixing frame (33) connected to the inner side of the spring (32), and a movable column (34) movably connected to the bottom of the fixing frame (33).

2. The electronic grade sulfuric acid product storage tank nitrogen sealing device according to claim 1, characterized in that: The movable column (34) is sleeved with a connecting pipe (35) on the outside, the inner surface of the connecting pipe (35) is connected with a square frame (38), the outer surface of the square frame (38) is provided with a square plate (36), and a magnet (37) is provided inside the inner side of the movable column (34).

3. The electronic grade sulfuric acid product storage tank nitrogen sealing device according to claim 1, characterized in that: The protection assembly further comprises a base (22) connected to the outer surface of the bottom end of the protection frame (21), a hinge (23) arranged on the left side of the rear end of the protection frame (21), and a cabinet door (24) connected to the surface of the hinge (23); The inner surface of the cabinet door (24) is connected to the fixing plate (31).

4. The electronic grade sulfuric acid product storage tank nitrogen sealing device according to claim 3, characterized in that: A door lock (25) is arranged inside the right side of the cabinet door (24), a first connecting plate (26) is arranged inside the top end of the protection frame (21), and a second connecting plate (27) is connected to the left side of the first connecting plate (26).

5. The electronic grade sulfuric acid product storage tank nitrogen sealing device according to claim 4, characterized in that: A silicone pad (261) is provided on the outer surface of the first connecting plate (26), a connecting groove (271) is provided inside the second connecting plate (27), and the silicone pad (261) is connected to the connecting groove (271).

6. The electronic grade sulfuric acid product storage tank nitrogen sealing device according to claim 4, characterized in that: The upper surfaces of the first connecting plate (26) and the second connecting plate (27) are connected to a limit frame (28), the limit frame (28) is movably connected to a limit column (29) inside, and the outer surfaces of both sides of the first connecting plate (26) and the second connecting plate (27) are connected to handles (291).

7. The electronic grade sulfuric acid product storage tank nitrogen sealing device according to claim 1, characterized in that: The main body assembly further comprises a first delivery pipe (14) connected to the output port of the nitrogen bottle (13), a gas supply valve (12) arranged on the left side of the first delivery pipe (14), a second delivery pipe (15) connected to the left side of the gas supply valve (12), and a finished product storage tank (11) arranged at the bottom end of the second delivery pipe (15).

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