Anti-oxidation storage tank for electronic-grade hydrogen peroxide

Abstract

The utility model discloses an anti-oxidation storage tank for electronic grade hydrogen peroxide, which comprises a tank body, the tank body is provided with a liquid inlet, a liquid inlet cover body for sealing the liquid inlet is arranged on the liquid inlet, a floating sealing element is arranged in the tank body, the interior of the tank body is divided into an upper cavity and a lower cavity through the floating sealing element, and the upper cavity and the lower cavity are communicated with each other. A pipeline is fixedly arranged on the floating sealing piece, and the liquid inlet is communicated with the interior of the lower cavity through the pipeline; inert gas is injected into the lower cavity; according to the utility model, through the arrangement of the floating sealing element, on one hand, the function of isolating oxygen on the surface of electronic-grade hydrogen peroxide can be achieved through inert gas, and on the other hand, the function of secondary sealing can be achieved through the floating sealing element; and meanwhile, air in the tank body can be exhausted through inert gas, the situation that external air is brought in when electronic-grade hydrogen peroxide descends in a pipeline can be avoided, and the good anti-oxidation effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of storage tanks, in particular to an anti-oxidation storage tank for electronic-grade hydrogen peroxide. Background Art

[0002] During the storage process, electronic-grade hydrogen peroxide needs to be avoided from contact with air to ensure the preservation effect of the electronic-grade hydrogen peroxide. The conventional storage method is to directly inject the electronic-grade hydrogen peroxide into the interior of the storage tank and then seal it with a sealing cover. Although this has a lower production cost, each time the sealing cover is opened, outside air can easily enter the interior of the anti-oxidation storage tank, causing some electronic-grade hydrogen peroxide to change, thereby reducing the quality of the electronic-grade hydrogen peroxide after storage. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an anti-oxidation storage tank for electronic-grade hydrogen peroxide, which effectively solves the problem that each time the sealing cover is opened, the outside air easily enters the interior of the anti-oxidation storage tank, thereby causing part of the electronic-grade hydrogen peroxide to change, thereby reducing the quality of the electronic-grade hydrogen peroxide after storage.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-oxidation storage tank for electronic-grade hydrogen peroxide, comprising a tank body, the tank body having a liquid inlet, the liquid inlet being provided with a liquid inlet cover for sealing the same, the interior of the tank body being provided with a floating seal, the interior of the tank body being divided into an upper cavity and a lower cavity by the floating seal, a pipeline being fixedly provided on the floating seal, the liquid inlet being connected to the interior of the lower cavity through the pipeline; and the interior of the lower cavity being filled with an inert gas.

[0005] Preferably, a liquid outlet is fixedly provided on the outer wall of the tank body, and a liquid outlet valve for sealing the liquid outlet is provided on the liquid outlet; and the liquid outlet is communicated with the interior of the lower cavity.

[0006] Preferably, the floating seal comprises a sealing plate slidably arranged with the tank body and a floating plate slidably arranged with the tank body, and the sealing plate and the floating plate are fixedly arranged with a connecting rod.

[0007] Preferably, a pressure relief valve is fixedly embedded on the sealing plate, and a breathable valve is fixedly embedded on the pipeline.

[0008] Preferably, the sealing plate is annular in shape, and four connecting rods are provided.

[0009] Preferably, the interior of the tank body is connected to a retaining ring, and the retaining ring is located inside the lower cavity.

[0010] Preferably, the pipe is a corrugated pipe, and the tank body is made of opaque material.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] During operation, the floating seal can, on the one hand, isolate oxygen from the surface of the electronic-grade hydrogen peroxide through the inert gas, and on the other hand, it can play a secondary sealing role through the floating seal; at the same time, the air in the tank can be discharged through the inert gas, and the electronic-grade hydrogen peroxide can be prevented from bringing in outside air when it descends in the pipeline, thereby achieving a good anti-oxidation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0014] In the attached picture:

[0015] Figure 1 This is a schematic diagram of the structure of an anti-oxidation storage tank for electronic-grade hydrogen peroxide of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the tank of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the floating seal of the utility model;

[0018] Figure 4 For the utility model Figure 2 Enlarged structural diagram at A in the middle.

[0019] In the figure: 1. tank body; 101. liquid inlet; 102. liquid inlet cover; 103. liquid outlet; 104. liquid outlet valve; 2. floating seal; 201. sealing plate; 202. connecting rod; 203. floating plate; 204. pressure relief valve; 3. upper cavity; 4. lower cavity; 5. pipeline; 501. air valve; 6. retaining ring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] Embodiment 1, by Figure 1-4The utility model relates to an anti-oxidation storage tank for electronic-grade hydrogen peroxide, comprising a tank body 1, the tank body 1 having a liquid inlet 101, a liquid inlet cover 102 for sealing the liquid inlet 101, a floating seal 2 is arranged inside the tank body 1, the inside of the tank body 1 is divided into an upper cavity 3 and a lower cavity 4 by the floating seal 2, a pipeline 5 is fixedly arranged on the floating seal 2, the liquid inlet 101 is connected with the inside of the lower cavity 4 through the pipeline 5; and the inside of the lower cavity 4 is filled with inert gas;

[0022] With such a design, when in use, the liquid inlet cover 102 on the liquid inlet 101 is first opened, and then the electronic grade hydrogen peroxide is injected into the interior of the pipeline 5 through the liquid inlet 101 by an external power device such as a pump body, and then injected into the interior of the lower cavity 4 below the floating seal 2 through the pipeline 5. Since the density of the liquid is greater than that of the inert gas, the electronic grade hydrogen peroxide is located below the inert gas in the lower cavity 4, so that the inert gas can play a sealing role. At the same time, the floating seal 2 can play a secondary sealing role, playing a good anti-oxidation role.

[0023] The outer wall of the tank body 1 is fixedly provided with a liquid outlet 103, and the liquid outlet 103 is provided with a liquid outlet valve 104 for sealing the liquid outlet 103; and the liquid outlet 103 is communicated with the interior of the lower cavity 4;

[0024] This design makes it easy to open the liquid outlet valve 104 when needed and discharge the electronic grade hydrogen peroxide in the tank body 1 through the liquid outlet 103 .

[0025] The floating seal 2 includes a sealing plate 201 slidably arranged with the tank body 1 and a floating plate 203 slidably arranged with the tank body 1, and the sealing plate 201 and the floating plate 203 are fixedly arranged by a connecting rod 202;

[0026] With this design, a space for accommodating an inert gas is formed between the sealing plate 201 and the floating plate 203, so that the inert gas can be used to isolate oxygen.

[0027] A pressure relief valve 204 is fixedly embedded on the sealing plate 201, and a vent valve 501 is fixedly embedded on the pipeline 5;

[0028] With such a design, during the process of injecting electronic-grade hydrogen peroxide into the tank body 1, when the tank body 1 is about to be filled and the injection of electronic-grade hydrogen peroxide needs to be stopped, the electronic-grade hydrogen peroxide will squeeze the inert gas. After reaching the pressure, the inert gas is discharged into the upper cavity 3 through the pressure relief valve 204, and the air in the upper cavity 3 is squeezed by the inert gas. Finally, part of the inert gas and the air enter the interior of the pipe 5 through the breathable valve 501 and are discharged. In this way, it is prevented that the electronic-grade hydrogen peroxide brings in the outside air when descending in the pipe 5, and a good anti-oxidation effect is achieved.

[0029] The sealing plate 201 is ring-shaped, and four connecting rods 202 are provided.

[0030] The interior of the tank body 1 is connected to a retaining ring 6, which is located inside the lower cavity 4;

[0031] This design prevents the floating seal 2 from falling onto the inner bottom wall of the tank body 1 , thereby avoiding adverse effects on the use of the liquid outlet 103 .

[0032] The pipe 5 is a corrugated tube, and the tank body 1 is made of an opaque material; such a design can effectively intercept light and avoid adverse effects on the electronic-grade hydrogen peroxide therein.

Claims

1. An anti-oxidation storage tank for electronic grade hydrogen peroxide, comprising a tank body (1), the tank body (1) having a liquid inlet (101), a liquid inlet cover (102) for sealing the liquid inlet (101), characterized in that: A floating seal (2) is provided inside the tank body (1), and the interior of the tank body (1) is divided into an upper cavity (3) and a lower cavity (4) by the floating seal (2); a pipeline (5) is fixedly provided on the floating seal (2), and the liquid inlet (101) is connected to the interior of the lower cavity (4) through the pipeline (5); and the interior of the lower cavity (4) is filled with an inert gas.

2. The anti-oxidation storage tank for electronic grade hydrogen peroxide according to claim 1, characterized in that: The outer wall of the tank body (1) is fixedly provided with a liquid outlet (103), and the liquid outlet (103) is provided with a liquid outlet valve (104) for sealing the liquid outlet (103); and the liquid outlet (103) is communicated with the interior of the lower cavity (4).

3. The anti-oxidation storage tank for electronic grade hydrogen peroxide according to claim 1, characterized in that: The floating seal (2) comprises a sealing plate (201) slidably arranged with the tank body (1) and a floating plate (203) slidably arranged with the tank body (1), and the sealing plate (201) and the floating plate (203) are fixedly arranged with a connecting rod (202).

4. The anti-oxidation storage tank for electronic grade hydrogen peroxide according to claim 3, characterized in that: A pressure relief valve (204) is fixedly embedded on the sealing plate (201), and a vent valve (501) is fixedly embedded on the pipeline (5).

5. The anti-oxidation storage tank for electronic grade hydrogen peroxide according to claim 4, characterized in that: The sealing plate (201) is in a ring shape, and four connecting rods (202) are provided.

6. The anti-oxidation storage tank for electronic grade hydrogen peroxide according to claim 1, characterized in that: The interior of the tank body (1) is connected to a retaining ring (6), and the retaining ring (6) is located inside the lower cavity (4).

7. The anti-oxidation storage tank for electronic grade hydrogen peroxide according to claim 1, characterized in that: The pipe (5) is a corrugated pipe; and the tank body (1) is made of a light-proof material.

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