Explosion-proof device

Abstract

The utility model relates to the field of biological pharmacy, and discloses an explosion-proof device. The explosion-proof device comprises an explosion-proof barrel and a support which are detachably connected. The anti-explosion barrel comprises a barrel body and a barrel cover, a first notch is formed in the anti-explosion barrel, the filter is arranged in the barrel body of the anti-explosion barrel and covered with the barrel cover, meanwhile, a pipeline communicated with the filter penetrates out of the barrel cover through the first notch, and explosion prevention can be conducted on the filter. The support is arranged in the barrel body and can fix the position of the filter, and it is guaranteed that when the filter is detected, a pipeline connected with the filter can smoothly stretch out of the anti-explosion barrel and is not bent, ventilation is conducted outside, and meanwhile pollution of waste water at the bottom of the anti-explosion barrel is avoided.

Description

Technical Field

[0001] This utility model relates to the field of biopharmaceuticals, and in particular to an explosion-proof device. Background Technology

[0002] In animal cell culture and downstream purification processes, hydrophilic filters serve as carriers for sterilization and virus filtration, playing an indispensable role in biopharmaceutical processes. After filtration, to ensure the effectiveness and integrity of the filter, integrity testing is required. Common testing methods include bubble point and diffusion flow, with maximum testing pressure reaching 5 bar. Because the entire filter integrity testing process is pressurized, if the filter cannot withstand the testing pressure due to quality issues, it may explode, causing injury to surrounding production personnel and posing a significant safety hazard.

[0003] Currently, some explosion-proof devices, including explosion-proof barrels, have filters placed directly inside for integrity testing. Due to the uneven bottom of the filter, it is easy for the filter to be placed horizontally inside the barrel. In this case, there is a risk that the gas pipeline connected to the filter and the external integrity tester will be bent. The bending of the pipeline may cause damage and leakage, making the integrity tester unable to work properly. At the same time, the filter may also come into contact with the waste liquid at the bottom of the explosion-proof barrel, thus contaminating the filter.

[0004] Therefore, there is an urgent need for an explosion-proof device that can solve the explosion-proof problem and reduce the possibility of accidental damage to the filter due to the device's own design. Utility Model Content

[0005] The purpose of this invention is to provide an explosion-proof device that can solve the explosion-proof problem and reduce the possibility of accidental damage to the filter due to the design of the explosion-proof device itself.

[0006] Based on the above concept, the technical solution adopted by this utility model is as follows:

[0007] An explosion-proof device for housing a filter, the explosion-proof device comprising:

[0008] An explosion-proof barrel, comprising a detachably connected barrel body and a barrel lid, wherein the explosion-proof barrel is provided with a first notch that allows a pipe connected to the filter to pass through;

[0009] A bracket, placed inside the barrel, is used to secure the filter.

[0010] As an optional embodiment of this explosion-proof device, the filter includes a head, a neck, and a body connected sequentially from top to bottom. The cross-sectional area of ​​the neck is smaller than that of the head. The support includes:

[0011] A top plate having a second opening, through which the neck can pass and the head can abut against the top plate;

[0012] The support body is connected to the top plate to form a receiving space below the top plate for accommodating the body and at least part of the neck.

[0013] As an optional solution for the explosion-proof device, the area of ​​the top plate is smaller than the cross-sectional area of ​​the barrel body, and an installation gap is formed between the top plate and the inner wall of the barrel body, which is connected to the second notch.

[0014] As an optional solution for this explosion-proof device, the main body of the bracket includes:

[0015] The bottom frame is located on the inner bottom surface of the barrel.

[0016] At least two connecting rods are arranged circumferentially around the top plate, with one end of the connecting rod connected to the top plate and the other end connected to the bottom frame.

[0017] As an optional solution for the explosion-proof device, the bracket is connected to the barrel body via a connector;

[0018] Alternatively, the outer circumferential surface of the bottom of the bracket abuts against the circumferential inner wall of the explosion-proof barrel.

[0019] As an optional solution for the explosion-proof device, the edge of the first notch is provided with a scratch-resistant component.

[0020] As an optional solution for the explosion-proof device, the edge of the first notch is bent upwards or downwards to form the scratch-resistant component;

[0021] Alternatively, an elastic element may be fitted around the edge of the first notch, and this elastic element is the anti-scratch element.

[0022] As an optional solution for the explosion-proof device, the edge of the lid is provided with a snap-fit ​​groove along the circumference, and at least one buckle is movably provided on the body of the bucket. The buckle can engage with the snap-fit ​​groove to detachably connect the body of the bucket and the lid.

[0023] As an optional solution for this explosion-proof device, the barrel is equipped with at least one handle;

[0024] And / or, the lid of the bucket is provided with at least one handle.

[0025] As an optional solution for the explosion-proof device, a sealing element is provided between the opening of the barrel and the lid.

[0026] The beneficial effects of this utility model are as follows:

[0027] This utility model proposes an explosion-proof device. A bracket is placed inside an explosion-proof barrel and is used to fix a filter. The pipe connected to the filter and the detection device can pass through the first notch and exit to the outside through the explosion-proof barrel. This allows the explosion-proof device to prevent the explosion of the contents inside the barrel from affecting the external environment. It also avoids the pipe from being bent due to the filter being placed horizontally, thereby avoiding negative impacts on the integrity detection process. Attached Figure Description

[0028] Figure 1 This is an isometric view of the explosion-proof device provided in this embodiment of the utility model;

[0029] Figure 2 This is an isometric view of the bracket provided in an embodiment of this utility model;

[0030] Figure 3 This is an isometric view of the explosion-proof barrel provided in this embodiment of the utility model.

[0031] In the picture:

[0032] 1. Explosion-proof barrel; 11. Barrel lid; 12. Handle; 13. Buckle; 14. Handle; 15. Barrel body; 111. First notch;

[0033] 2. Support frame; 21. Top plate; 22. Bottom frame; 23. Connecting rod; 211. Second notch. Detailed Implementation

[0034] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effects achieved clearer, the technical solution of this invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this invention and are not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts related to this invention are shown in the accompanying drawings, not all of them.

[0035] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0038] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0039] During normal filter integrity testing, improper operation often leads to filter explosions, resulting in contamination of the testing environment or endangering the personal safety of users. Therefore, placing the filter in an explosion-proof container can mitigate the damage caused by an explosion. However, filters are typically placed at an angle or horizontally within the explosion-proof container. If the filter is placed horizontally or at an angle, the pipe connected to it will come into contact with and bend against the inner wall of the container, affecting the testing process. In severe cases, excessive gas accumulation within the filter can lead to an explosion.

[0040] To solve the problems caused by the explosion-proof barrel 1 mentioned above, such as Figure 1 As shown, this embodiment provides an explosion-proof device for accommodating a filter during the testing process. The explosion-proof device includes an explosion-proof barrel 1 and a support 2. The explosion-proof barrel 1 includes a barrel body 15 and a barrel lid 11. The support 2 is placed inside the barrel body 15 and is used to fix the filter. Thus, fixing the filter to the support 2 prevents the portion of the pipe connected to the filter from contacting the inner wall of the barrel body 15, and also prevents it from being bent, thereby not affecting the testing and preventing a larger accident. At the same time, a first notch 111 is provided on the explosion-proof barrel 1, which allows the pipe connected to the filter to pass through, making it easier for the filter to be connected to an external testing agency.

[0041] A typical filter consists of a head, neck, and body connected from top to bottom, with the cross-sectional area of ​​the neck being smaller than that of the head.

[0042] To facilitate fixing the filter, such as Figure 1-2 As shown, in this embodiment, the bracket 2 includes a top plate 21 and a bracket body.

[0043] A second notch 211 is provided on the top plate 21. The neck of the filter passes through the second notch 211, and the head of the filter abuts against the top plate 21. The aforementioned bracket 2 allows the filter to be in a vertical position inside the barrel 15, without contacting the side wall of the barrel 15. Because the filter is in a vertical position inside the barrel 15, the probability of the part of the pipe connected to it near the filter contacting the side wall of the barrel 15 is greatly reduced, thereby greatly reducing the probability of the integrity test results being affected by the bending of the pipe components.

[0044] The support body is connected to the top plate 21 so that a receiving space is formed below the top plate 21. The filter body and at least part of the neck are located in the receiving space, which reduces the probability that the bottom of the filter will contact the bottom of the tank 15, thereby reducing the pollution of waste liquid at the bottom of the tank 15, thereby reducing the scrap rate of the filter, and also reducing the probability of errors in the integrity test results.

[0045] More specifically, such as Figure 1 As shown, in this embodiment, the area of ​​the top plate 21 is smaller than the cross-sectional area of ​​the barrel 15, and an installation gap is formed between the top plate 21 and the inner wall of the barrel 15. The installation gap is connected to the second notch 211. When the filter is to be fixed to the bracket 2, the filter can be placed in the installation gap first, then moved to the second notch 211, and then fixed to the bracket 2. The setting of the position of the top plate 21 and the installation gap makes the process of fixing the filter to the bracket 2 more convenient.

[0046] Optionally, the second notch 211 is rectangular, with a length of any size between 10-15cm and a width of any size between 2-6cm. For example, the size of the second notch 211 can be 12cm*3.8cm or 11cm*4cm, etc., as long as it allows the filter head to abut against the top plate 21 and prevents the filter from detaching from the bracket 2. In this embodiment, the size of the second notch 211 is 12cm*4cm, allowing the filter head to abut against the top plate 21.

[0047] Specifically, such as Figure 1-2As shown, in this embodiment, the support body includes a bottom frame 22, which is placed on the inner bottom surface of the barrel 15. The support body also includes at least two connecting rods, which are arranged circumferentially around the top plate 21. One end of the connecting rod is connected to the top plate 21, and the other end is connected to the bottom frame 22. The bottom frame 22 is positioned on the inner ground of the barrel 15, which provides it with strong support. After the top plate 21 and the bottom frame 22 are connected by the connecting rods, the top plate 21 also has support, thereby enabling the support 2 to support the filter.

[0048] Optionally, in this embodiment, as Figure 1-2 As shown, both the top plate 21 and the bottom frame 22 are rectangular. Because rectangular structures can maintain their geometric shape under external loads, the support 2 is less prone to deformation. In other embodiments, the top plate 21 and the bottom frame 22 can be other shapes, such as elliptical or circular, as long as an opening can be made to fix the filter.

[0049] Optionally, in this embodiment, as Figure 1-2 As shown, there are four connecting rods 23. Since both the top plate 21 and the bottom frame 22 are rectangular, they are connected at each corresponding vertex of the top plate 21 and the bottom frame 22 to distribute the load in a targeted manner, thereby improving the load-bearing capacity and stability of the bracket 2. In other embodiments, the connecting rods 23 can be three, five, or six, as long as they can connect the top plate 21 and the bottom frame 22 and enable the bracket 2 to bear the load.

[0050] Optionally, in this embodiment, as Figure 1-2 As shown, the area of ​​the top plate 21 is smaller than the area of ​​the bottom frame 22, and the base design of the bracket 2 is usually wider. This allows for a larger contact area with the inner bottom surface of the explosion-proof barrel 1, increasing the area that can distribute force and thus improving the overall stability of the bracket 2.

[0051] If the position of bracket 2 is not fixed, relative sliding may occur between bracket 2 and explosion-proof barrel 1, causing the pipe connected to the filter to contact the inner wall of barrel 15, resulting in pipe bending and affecting integrity testing. Optionally, in this embodiment, the outer circumferential surface of the bottom of bracket 2 abuts against the circumferential inner wall of explosion-proof barrel 1, so that the circumferential inner wall of explosion-proof barrel 1 limits the bracket 2, preventing relative sliding between bracket 2 and explosion-proof barrel 1. At the same time, since the bottom of bracket 2 only abuts against explosion-proof barrel 1 without a fixed or detachable connection, the removal and placement of bracket 2 are very convenient. Specifically, the outer contour shape of bottom frame 22 is trapezoidal, which is an inscribed trapezoid of the inner wall of explosion-proof barrel 1. That is, all four apexes of bottom frame 22 abut against the inner wall of explosion-proof barrel 1, thereby fixing bracket 2.

[0052] In other embodiments, the bracket 2 is connected to the barrel body 15 via a connector, fixing the bracket 2 within the barrel body 15. This prevents relative sliding between the bracket 2 and the explosion-proof barrel 1, ensuring that integrity testing is not affected by the relative positional relationship between the bracket 2 and the explosion-proof barrel 1. Optionally, the connector can be any component capable of connecting the bracket 2 to the inner bottom of the barrel body 15. For example, the connector can be a bolt and nut assembly or a corner joint connector 23, etc. Optionally, such as... Figure 1-3 As shown, in this embodiment, the first notch 111 is provided on the lid 11, with the opening of the first notch 111 facing the edge of the barrel opening 15. This allows the connected pipes and filter assembly to be placed into the explosion-proof barrel 1 without disassembly, thus enabling the explosion-proof device to accommodate filter and pipe assemblies with various connection configurations within the explosion-proof barrel 1. In other embodiments, the first notch 111 can be formed on the barrel 15, as long as the first notch 111 in this position allows the pipe connected to the filter inside the explosion-proof barrel 1 to pass through the explosion-proof barrel 1.

[0053] Specifically, an anti-scratch element is provided at the edge of the first notch 111. This anti-scratch element prevents damage to the pipe passing through the first notch 111, thus ensuring that integrity testing is not affected. Optionally, in this embodiment, the edge of the first notch 111 is bent upwards or downwards to form the anti-scratch element. This anti-scratch element not only protects the pipe from damage but also reuses the material wasted in creating the first notch 111. In other embodiments, an elastic element is fitted around the edge of the first notch 111. This elastic element serves as the anti-scratch element. The material of the elastic element is not limited, as long as it can protect the pipe.

[0054] Similarly, in other embodiments, a scratch-resistant element may also be provided on the second notch 211 to protect the filter neck and head from damage.

[0055] Optionally, the first notch 111 is rectangular, with a length of any size between 10-25cm and a width of any size between 1-5cm. For example, the size of the first notch 111 can be 16cm*2cm or 15cm*2.1cm, as long as it allows the pipe to pass through smoothly. In this embodiment, the size of the first notch 111 is 15cm*2cm, allowing the pipe to pass through smoothly.

[0056] Because the explosion-proof barrel 1 is a split structure, when making the filter explosion-proof, the barrel body 15 and the barrel cover 11 need to be connected to achieve a better explosion-proof effect. Optionally, such as Figure 1-3As shown, in this embodiment, the edge of the lid 11 is provided with a snap-fit ​​groove along the circumferential direction, and at least one snap fastener 13 is movably installed on the body 15. The snap fastener 13 can snap into the snap-fit ​​groove to detachably connect the body 15 and the lid 11, so that the explosion-proof barrel 1 can not only open the lid 11 to fix the filter, but also close the lid 11 to protect the filter from explosion. Since the connection strength between the lid 11 and the body 15 is much higher than that without the connector 23, the explosion-proof effect of the explosion-proof barrel is also much better.

[0057] Optionally, in this embodiment, the buckle 13 is an elastic structure formed by bending a metal wire. A fixing part is provided on the barrel body 15, and the metal wire passes through the fixing part so that the buckle 13 can rotate relative to the fixing part and cooperate with the snap-fit ​​groove, thereby applying a downward force to the barrel lid 11 through the buckle 13 to fix the barrel body 15 and the barrel lid 11.

[0058] In other embodiments, the connector 23 used to connect the barrel body 15 can also be other parts such as screws and nuts, as long as the connector 23 can fix the barrel body 15 and the barrel lid 11.

[0059] Specifically, such as Figure 1-3 As shown, in this embodiment, at least one handle 14 is provided on the barrel body 15 for lifting the explosion-proof barrel 1, assisting in moving the explosion-proof barrel 1 or dumping waste. Optionally, in this embodiment, as... Figure 1-3 As shown, two handles 14 are provided on the outside of the barrel body 15. The two handles 14 are arranged opposite each other around the circumference of the barrel body 15, so that the force on the two handles 14 is evenly distributed, and the user can lift the explosion-proof barrel 1 with less effort. In other embodiments, the handles 14 can be one, three or four, etc., as long as they can be used to lift the explosion barrel.

[0060] Optionally, the lid 11 is provided with at least one handle 12, which makes it easier to lift the lid 11. In this embodiment, for example... Figure 1-3 As shown, there is one handle 12. In other embodiments, there may be two or three handles 12, etc., as long as the lid 11 can be lifted.

[0061] Specifically, in this embodiment, a sealing element is provided between the opening of the barrel body 15 and the barrel lid 11, so that when the barrel body 15 and the barrel lid 11 are closed, the sealing effect of the explosion-proof barrel 1 is better, thereby improving the explosion-proof effect of the explosion-proof barrel 1. Optionally, the sealing element can be a silicone gasket, etc., as long as it can improve the explosion-proof effect of the explosion-proof barrel 1.

[0062] Optionally, in this embodiment, both the barrel body 15 and the barrel lid 11 are made of stainless steel. Due to the high impact resistance of stainless steel, the explosion-proof barrel 1 has strong explosion-proof capability. In other embodiments, the explosion-proof barrel 1 can be made of explosion-suppressing aluminum alloy or fiber-reinforced cement, etc., as long as the material can withstand the impact force generated by the explosion of the filter.

[0063] Since the length of commonly available filters is 10-34cm, in order to accommodate multiple filter specifications, in this embodiment, the explosion chamber 1 can optionally have a diameter of 30cm and a height of 60cm. This allows the explosion chamber 1 to accommodate most filters on the market, avoiding the need to replace the explosion chamber 1 with one of the corresponding size when changing the specification of the filter to be tested. In other embodiments, the diameter of the explosion chamber 1 can be any size between 25-40cm, and the height can be any size between 45-75cm, as long as it can accommodate multiple filter specifications; further details are omitted.

[0064] To accommodate filters of various sizes, in this embodiment, the bottom frame 22 is optionally a 20cm x 15cm rectangle, the top plate 21 is a 15cm x 15cm square, and the support 2 is 35cm high. This allows the support 2 to accommodate most commercially available filters, avoiding the need to replace the support 2 with a different size when changing the filter to be tested. In other embodiments, the length of the bottom frame 22 can be any size between 16-25cm, and the width can be any size between 10-20cm; the side length of the top plate 21 can be any size between 10-20cm; and the height of the support 2 can be any size between 34-60cm. Any support 2 of any size that can accommodate multiple filter sizes is acceptable and will not be described in detail further.

[0065] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An explosion-proof device for housing a filter, characterized in that, The explosion-proof device includes: An explosion-proof barrel (1) includes a detachably connected barrel body (15) and a barrel cover (11). The explosion-proof barrel is provided with a first notch (111) that allows a pipe connected to the filter to pass through. A bracket (2) is placed inside the barrel body (15) and is used to fix the filter.

2. The explosion-proof device according to claim 1, characterized in that, The filter includes a head, a neck, and a body connected sequentially from top to bottom. The cross-sectional area of ​​the neck is smaller than that of the head. The support (2) includes: A top plate (21) is provided with a second notch (211), through which the neck can pass and the head can abut against the top plate (21); The support body is connected to the top plate (21) to form a receiving space below the top plate (21) for accommodating the body and at least part of the neck.

3. The explosion-proof device according to claim 2, characterized in that, The area of ​​the top plate (21) is smaller than the cross-sectional area of ​​the barrel body (15), and an installation gap is formed between the top plate (21) and the inner wall of the barrel body (15), and the installation gap is connected to the second notch (211).

4. The explosion-proof device according to claim 2, characterized in that, The support body includes: The bottom frame (22) is disposed on the inner bottom surface of the barrel body (15); At least two connecting rods (23) are arranged circumferentially around the top plate (21), with one end of the connecting rod (23) connected to the top plate (21) and the other end connected to the bottom frame (22).

5. The explosion-proof device according to any one of claims 1-4, characterized in that, The bracket (2) is connected to the barrel body (15) by a connector; Alternatively, the outer peripheral surface of the bottom of the bracket (2) abuts against the circumferential inner wall of the explosion-proof barrel (1).

6. The explosion-proof device according to any one of claims 1-4, characterized in that, The edge of the first notch (111) is provided with a scratch-resistant part.

7. The explosion-proof device according to claim 6, characterized in that, The edge of the first notch (111) is bent upward or downward to form the anti-scratch element; Alternatively, an elastic element may be fitted around the edge of the first notch (111), and the elastic element is the anti-scratch element.

8. The explosion-proof device according to any one of claims 1-4, characterized in that, The edge of the bucket lid is provided with a snap-fit ​​groove along the circumferential direction, and at least one buckle (13) is movably provided on the bucket body (15). The buckle (13) can snap into the snap-fit ​​groove to detachably connect the bucket body (15) and the bucket lid (11).

9. The explosion-proof device according to any one of claims 1-4, characterized in that, At least one handle (14) is provided on the barrel body (15); And / or, the lid (11) is provided with at least one handle (12).

10. The explosion-proof device according to any one of claims 1-4, characterized in that, A sealing element is provided between the opening of the barrel body (15) and the lid (11).

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