Reagent bottle for storing liquid sensitive to water and oxygen

Abstract

The utility model relates to a reagent bottle for storing liquid sensitive to water and oxygen, and belongs to the technical field of container bottles. The reagent bottle comprises a bottle cap, a bottle body and a bottle opening connected with the top of the bottle body into an integral structure; the inner wall of the bottle opening is fixedly connected with a sealing plug; a long catheter and a short catheter are respectively arranged on the sealing plug and extend into the bottle body; the long catheter is in sliding connection with the sealing plug; the short conduit is fixedly connected with the sealing plug; the inner wall of the bottle cap is in threaded connection with the outer wall of the bottle opening. According to the reagent bottle provided by the utility model, the long conduit and the short conduit which are provided with the sealing covers at the tops are combined for use, so that the filling of inert gas in the reagent bottle can be realized, a liquid reagent in the bottle can be taken out under the protection of the inert gas, and the reagent bottle can be widely applied to the storage of the liquid reagent which is easy to oxidize, absorb moisture and volatilize.

Description

Technical Field

[0001] This utility model belongs to the field of container bottle technology, and relates to a reagent bottle for storing liquids that are sensitive to water and oxygen. Background Technology

[0002] With the rapid rise of the semiconductor industry, the variety and quantity of high-purity wet chemical reagents required have increased significantly, and the quality requirements for these reagents are extremely stringent. Many reagents, such as NMP and THF, readily absorb moisture and are easily oxidized by oxygen, generating impurities. When stored in ordinary reagent bottles, the remaining reagents are highly susceptible to deterioration after a portion is used. Currently, in reagent bottle gas protection technology, patent CN 208248767 U discloses an atmosphere-protected sample bottle, including an inner cap that matches the bottle's screw cap. A three-way valve is located on the top surface of the inner cap, with one end connected to the bottle body and the other end connected to a vacuum pump or inert gas bottle. A screw plug is located at the other end. This special cap design allows for repeated sealing, vacuum preservation, and atmosphere preservation of reagents and experimental samples. However, to completely replace the air inside the bottle, alternating vacuuming and inert gas filling is required, resulting in large pressure fluctuations and a risk of bottle breakage. Considering the chemicals contained within, the aforementioned patent places high demands on the material strength of the reagent bottle. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a reagent bottle for storing water- and oxygen-sensitive liquids, which can be operated under normal pressure.

[0004] To achieve the above objectives, this utility model employs the following technical solution:

[0005] This utility model provides a reagent bottle for storing water- and oxygen-sensitive liquids, comprising: a bottle cap, a bottle body, and a bottle mouth that is integrally connected to the top of the bottle body;

[0006] A sealing plug is fixedly connected to the inner wall of the bottle opening;

[0007] The sealing plug is provided with a long tube and a short tube, which extend into the bottle body;

[0008] The long conduit is slidably connected to the sealing plug; the short conduit is fixedly connected to the sealing plug.

[0009] The inner wall of the bottle cap is threadedly connected to the outer wall of the bottle opening.

[0010] Furthermore, the sealing plug is threadedly connected to the bottle neck.

[0011] Furthermore, the bottle body is cylindrical.

[0012] Furthermore, the bottle body is provided with multiple corrugated sections, which are distributed circumferentially along the bottle body.

[0013] Furthermore, the short conduit is threadedly connected to the sealing plug.

[0014] Furthermore, the bottom of the long conduit extends into the interior of the bottle near the bottom.

[0015] Furthermore, a sealing ring is provided between the long conduit and the sealing plug.

[0016] Furthermore, both the top of the long conduit and the top of the short conduit are provided with sealing caps.

[0017] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:

[0018] This invention provides a reagent bottle for storing water- and oxygen-sensitive liquids. It utilizes a combination of two tubing, one long and one short, with a sealing cap at the top. When inert gas is introduced through the long tubing, the inert gas inside the bottle can be replaced. When inert gas is introduced through the short tubing, the liquid reagent can be removed under the protection of the inert gas. All operations can be performed at atmospheric pressure, effectively preventing the reagent bottle from breaking. Furthermore, there are no strength requirements for the bottle material, making it safe, economical, and widely applicable for storing water- and oxygen-sensitive liquid reagents. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of a reagent bottle for storing water- and oxygen-sensitive liquids provided in an embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure at the mouth of the reagent bottle in an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the state of the reagent bottle during the replacement of inert gas inside the reagent bottle in an embodiment of this utility model;

[0022] Figure 4 This is a schematic diagram of the state of the reagent bottle when the trace amounts of oxygen dissolved in the reagent are expelled in an embodiment of this utility model;

[0023] Figure 5 This is a schematic diagram of the state of the reagent bottle when the liquid reagent is discharged from the reagent bottle in an embodiment of this utility model;

[0024] Figure 6 This is a schematic diagram showing the state of the reagent bottle during the purging of the long tubing in an embodiment of this utility model;

[0025] In the diagram, 1: bottle body; 2: bottle cap; 3: sealing plug; 4: long tube; 5: short tube; 6: corrugated joint; 7: sealing ring; 8: long tube sealing cap; 9: short tube sealing cap. Detailed Implementation

[0026] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. The same reference numerals in the drawings indicate the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. The embodiments and specific features within the embodiments of this application are detailed descriptions of the technical solution of this application, and not limitations thereof. Where there is no conflict, the embodiments and technical features within the embodiments of this application can be combined with each other.

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the term "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] like Figure 1 As shown, this utility model embodiment provides a reagent bottle for storing water- and oxygen-sensitive liquids. The reagent bottle includes: a bottle cap 2, a bottle body 1, and a bottle mouth that is integrally connected to the top of the bottle body 1.

[0030] A sealing plug 3 is fixedly connected to the inner wall of the bottle opening;

[0031] The sealing plug 3 is provided with a long conduit 4 and a short conduit 5 respectively; the long conduit 4 and the short conduit 5 extend into the bottle body 1;

[0032] The long conduit 4 is slidably connected to the sealing plug 3; the short conduit 5 is fixedly connected to the sealing plug 3.

[0033] The inner wall of the bottle cap 2 is threadedly connected to the outer wall of the bottle opening.

[0034] Specifically, such as Figure 2 As shown, the sealing plug 3 is threadedly connected to the bottle mouth, and the short conduit 5 is threadedly connected to the sealing plug 3.

[0035] The bottle body 1 has a cylindrical structure and is provided with multiple corrugated sections 6. The corrugated sections 6 are continuously distributed along the circumferential direction of the bottle body 1, with one corrugated section 6 near the top and one near the bottom of the bottle body 1. Because the bottle body 1 of this invention is made of plastic, the corrugated structure allows for slight deformation of the reagent bottle during inflation and replacement, thereby stabilizing the internal pressure.

[0036] The bottle body 1 can be made of plastic, including PE, PP, PVC and PTFE.

[0037] The length of the long conduit 4 needs to ensure that its bottom end can be inserted into the bottom of the bottle while its top end remains outside the bottle and can be connected to the inert gas source.

[0038] The long tube 4 and the sealing plug 3 are slidably connected, so there is a gap between them. In order to ensure the airtightness of the reagent bottle, a sealing ring 7 is provided between the long tube 4 and the sealing plug 3.

[0039] The sealing ring 7 is made of rubber, which can ensure a tight seal without hindering the up-and-down movement of the long conduit 4.

[0040] In this embodiment of the invention, two sealing rings 7 are provided between the long conduit 4 and the sealing plug 3.

[0041] Both the top of the long conduit 4 and the top of the short conduit 5 are provided with sealing caps.

[0042] Specifically, the top outer wall of the long conduit 4 is provided with external threads, and the inner wall of the long conduit sealing cap 8 is provided with internal threads that mate with it; the top outer wall of the short conduit 5 is provided with external threads, and the inner wall of the short conduit sealing cap 9 is provided with internal threads that mate with it.

[0043] In this embodiment of the utility model, the long tube 4 and the short tube 5 are made of the same material as the bottle body 1.

[0044] When purging inert gas from reagent bottles, such as Figure 3As shown, open bottle cap 2, long tube sealing cap 8, and short tube sealing cap 9. Connect the upper end of long tube 4 to an inert gas source, and the lower end should not contact the reagent inside the bottle. After the inert gas flows above the liquid surface for a period of time, turn off the inert gas source, screw on the long tube sealing cap 8 and the short tube sealing cap 9, and screw on bottle cap 2 to seal the reagent bottle.

[0045] If it is necessary to remove trace amounts of oxygen dissolved in the liquid reagent in the reagent bottle, then as follows: Figure 4 As shown, open the sealing cap 8 of the long tube and the sealing cap 9 of the short tube. Connect the upper end of the long tube 4 to an inert gas and extend the lower end of the long tube 4 into the reagent in the bottle to expel the trace amount of oxygen dissolved in the reagent by bubbling.

[0046] When it is necessary to remove the liquid reagent from the reagent bottle, such as Figure 5 As shown, open bottle cap 2, long tube sealing cap 8, and short tube sealing cap 9. The lower end of long tube 4 extends into the bottom of the reagent bottle. Connect the upper end of short tube 5 to an inert gas source. At this time, the liquid reagent in the reagent bottle will be forced out of the bottle through long tube 4. At the same time as the reagent is forced out, inert gas enters the reagent bottle, which can ensure that no air enters the bottle.

[0047] like Figure 6 As shown, after taking the reagent, move the lower end of the long tube 4 above the liquid surface, continue to ventilate to blow away the residual liquid in the long tube 4, then screw on the long tube sealing cap 8 and the short tube sealing cap 9, and screw on the bottle cap 2 to seal the reagent bottle.

[0048] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the scope of protection of this disclosure / application.

Claims

1. A reagent bottle for storing water- and oxygen-sensitive liquids, characterized in that, include: The bottle cap, bottle body, and bottle opening are integrated into a single structure connected to the top of the bottle body; A sealing plug is fixedly connected to the inner wall of the bottle opening; The sealing plug is provided with a long tube and a short tube, which extend into the bottle body; The long conduit is slidably connected to the sealing plug; the short conduit is fixedly connected to the sealing plug. The inner wall of the bottle cap is threadedly connected to the outer wall of the bottle opening.

2. The reagent bottle for storing water- and oxygen-sensitive liquids according to claim 1, characterized in that, The sealing plug is threadedly connected to the bottle opening.

3. The reagent bottle for storing water- and oxygen-sensitive liquids according to claim 1, characterized in that, The bottle body is cylindrical.

4. The reagent bottle for storing water- and oxygen-sensitive liquids according to claim 3, characterized in that, The bottle body is provided with multiple corrugated sections, which are distributed along the circumference of the bottle body.

5. The reagent bottle for storing water- and oxygen-sensitive liquids according to claim 1, characterized in that, The short conduit is threadedly connected to the sealing plug.

6. The reagent bottle for storing water- and oxygen-sensitive liquids according to claim 1, characterized in that, The bottom of the long conduit extends into the interior of the bottle, near the bottom.

7. The reagent bottle for storing water- and oxygen-sensitive liquids according to claim 1, characterized in that, A sealing ring is provided between the long conduit and the sealing plug.

8. The reagent bottle for storing water- and oxygen-sensitive liquids according to claim 1, characterized in that, Both the top of the long conduit and the top of the short conduit are provided with sealing caps.

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