Inner extending pipe structure and bioreactor

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The split inner extension tube structure solves the problem that the inner extension tube structure in the prior art needs to be disassembled and removed from the screen, and efficient disassembly and flexible component adjustments are achieved, which improves the maintainability and versatility of the equipment.

CN223226047UActive Publication Date: 2025-08-15TIANXINHE SUZHOU BIOTECH CO LTD +1

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Patent Information

Application Number: CN202422350595.5
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-09-26
Publication Date: 2025-08-15
Estimated Expiration: 2034-09-26

AI Technical Summary

Technical Problem

The existing internal extension tube structure is integrated with the tank, which causes the screen to be removed to be disassembled as a whole, which increases the risk of wear and shortens the service life, and cannot replace the components according to different application scenarios, which are poor in versatility and economy.

Method used

It adopts a split inner extension tube structure, including a base, a pressure plate, a tube sleeve, an inner extension tube and a branch tube. It is connected by a fastener, allowing the branch tube to be detachable. The screen can be removed by just removing the branch tube, and each component can be flexibly adjusted.

Benefits of technology

It reduces the difficulty of equipment installation and maintenance, improves efficiency and maintainability, reduces maintenance costs, and enhances versatility and economy.

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Abstract

The utility model relates to an inward-extending pipe structure and a bioreactor, the inward-extending pipe structure adopts a split structure, and when a screen sheet in a tank body needs to be taken out, the screen sheet can be taken out only by disassembling a branch pipe without integrally disassembling the inward-extending pipe structure; compared with an integrated structure, all parts of the inner extending pipe structure can be mounted and dismounted in a relative standard mode, the difficulty of equipment mounting and maintenance can be lowered, and therefore the requirement for working skills of operators is lowered, and the efficiency of equipment mounting and dismounting is improved; in addition, the detachable design allows quick separation and replacement of damaged parts, so that the maintenance time and cost are greatly reduced, and the maintainability of the whole structure is also improved; meanwhile, the split type structure can be used for replacing parts with different sizes, different materials or functions according to different application scenes and requirements, so that flexible adjustment of all the parts is achieved, and the universality and economical efficiency of the whole inner stretching pipe structure are improved.

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Description

Technical Field

[0001] The utility model relates to the technical field of bioengineering, in particular to an inner extension tube structure and a bioreactor. Background Art

[0002] A bioreactor is a device system that uses the biological functions of enzymes or organisms to carry out biochemical reactions in vitro. It is a biological function simulator. Bioreactors include fermentation tanks, immobilized enzymes or immobilized cell reactors, etc., and have important applications in alcohol and pharmaceutical production, organic pollutant degradation, etc.

[0003] The bioreactor includes an inner extension tube structure. The existing inner extension tube structure usually includes an inner extension tube and a connecting part installed integrally with the inner extension tube. The inner extension tube structure is installed as a whole on the tank body of the bioreactor. When the screen in the tank needs to be removed during the biological reaction process, the screen will interfere with the inner extension tube, and the inner extension tube structure must be removed as a whole to remove the screen. As the number of disassembly increases, the wear at the connection between the inner extension tube and the tank body will increase, which will not only shorten the service life of the inner extension tube, but also increase the risk of leakage and damage to the entire reaction device. At the same time, the integrated structure cannot replace the various components of the inner extension tube structure individually according to different application scenarios and needs, which makes the versatility and economy of the entire inner extension tube structure poor. Utility Model Content

[0004] To this end, the technical problem to be solved by the present invention is to overcome the problem in the prior art that the inner extension tube structure usually includes an inner extension tube and a connecting part installed integrally therewith, and the inner extension tube structure is installed as a whole on the tank body of the bioreactor. When the screen plate in the tank needs to be removed during the biological reaction process, the screen plate will interfere with the inner extension tube, and the inner extension tube structure must be removed as a whole to remove the screen plate. As the number of disassembly increases, the wear at the connection between the inner extension tube and the tank body will increase, which will not only shorten the service life of the inner extension tube, but also increase the risk of leakage and damage to the entire reaction device; at the same time, the integrated structure cannot replace the various components of the inner extension tube structure separately according to different application scenarios and needs, which makes the versatility and economy of the entire inner extension tube structure poor.

[0005] In order to solve the above technical problems, the utility model provides an inner extension tube structure, comprising:

[0006] A base, wherein a central through hole is coaxially formed on the base, and the central through hole is a stepped hole including a stepped surface;

[0007] a pressure plate, the pressure plate comprising an annular main portion, the main portion being coaxially connected to the end of the base on a side close to the step surface by a fastener, and the main portion having an annular extension coaxially provided on a side facing the step surface and extending into the central through hole;

[0008] A pipe sleeve, the pipe sleeve is an annular plate structure, the pipe sleeve is embedded in the central through hole and is tightly pressed between the annular extension and the step surface, and a gasket is provided between the pipe sleeve and the step surface;

[0009] an inner extension tube, the inner extension tube being coaxially connected to the inner hole of the pipe sleeve;

[0010] A branch pipe is detachably connected to an end of the inner extension pipe away from the pressing plate.

[0011] In one embodiment of the present invention, a plurality of bolt holes are vertically opened on the main body portion and are evenly spaced around its circumference, a plurality of threaded holes corresponding to the positions of the bolt holes are opened at one end of the base, and the main body portion is connected to the base at the corresponding bolt holes and threaded holes through fasteners.

[0012] In one embodiment of the present invention, the main body portion and the annular extension portion are an integrally formed structure.

[0013] In one embodiment of the present invention, a first annular groove is coaxially provided on the step surface, a second annular groove is coaxially provided on a surface of the sleeve close to the step surface, the gasket is clamped between the step surface and the sleeve, and annular protrusions matching the first annular groove and the second annular groove are respectively provided on both surfaces of the gasket.

[0014] In one embodiment of the present invention, a first chamfer is provided on a surface of the sleeve facing away from the gasket, and a second chamfer is provided at the opening of the free end of the annular extension, and the inclinations of the first chamfer and the second chamfer match.

[0015] In one embodiment of the present invention, one end of the branch pipe is provided with an external thread, and one end of the inner extension pipe away from the pressing plate is provided with an internal thread for screwing with the external thread.

[0016] In one embodiment of the present invention, a fastening flat portion is provided on the side surface of the branch pipe.

[0017] In one embodiment of the present invention, a sealing ring is provided between the branch pipe and the inner extension pipe.

[0018] In one embodiment of the present invention, the gasket is a polytetrafluoroethylene gasket.

[0019] A bioreactor comprises the inner extension tube structure as described in any one of the above items.

[0020] The above technical solution of the utility model has the following advantages compared with the prior art:

[0021] The utility model describes an inner extension tube structure and a bioreactor, comprising a base, a pressure plate, a sleeve, an inner extension tube and a branch tube, wherein the base is provided with a central through hole, which is a stepped hole and includes a stepped surface; the pressure plate includes a main body portion coaxially connected to the end of the base through a fastener, and an annular extension portion extending into the central through hole is provided on the side of the main body portion facing the stepped surface; the pipe sleeve is embedded in the central through hole and is tightly pressed between the annular extension portion and the stepped surface, and a gasket is provided between the pipe sleeve and the stepped surface; the inner extension tube is coaxially connected to the inner hole of the pipe sleeve; the branch tube is detachably connected to the end of the inner extension tube away from the pressure plate. This inner extension pipe structure makes it unnecessary to disassemble the inner extension pipe structure as a whole when it is necessary to remove the screen in the tank body. The screen can be removed by disassembling the branch pipe. This inner extension pipe structure is a split structure. Compared with the integrated structure, its various components can be installed and disassembled in a relatively standard manner, which can reduce the difficulty of equipment installation and maintenance, thereby reducing the requirements for the operator's work skills and improving the efficiency of equipment loading and unloading. The detachable design allows for rapid separation and replacement of damaged parts, greatly reducing maintenance time and cost, and improving the maintainability of the entire structure. At the same time, the split structure can replace components of different sizes, materials or functions according to different application scenarios and needs, thereby realizing flexible adjustment of each component, thereby improving the versatility and economy of the entire inner extension pipe structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on the specific embodiments of the present invention and in conjunction with the accompanying drawings, wherein

[0023] Figure 1 This is a schematic diagram of the overall structure of the inner extension tube structure of the preferred embodiment of the utility model;

[0024] Figure 2 This is a structural diagram of the base of the inner extension tube structure of the preferred embodiment of the utility model;

[0025] Figure 3 This is a structural diagram of a pressure plate of an inner extension tube structure in a preferred embodiment of the present utility model;

[0026] Figure 4 This is a cross-sectional view of a gasket of an inner extension tube structure according to a preferred embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of a first structural form of a branch pipe of an inner extending pipe structure of a preferred embodiment of the present utility model;

[0028] Figure 6 This is a schematic diagram of a second structural form of a branch pipe of the inner extension pipe structure of a preferred embodiment of the present utility model;

[0029] Figure 7 This is a schematic diagram of the inner extension tube structure of the preferred embodiment of the utility model installed on the reaction tank;

[0030] Figure 8 It is a schematic diagram of removing the branch pipe of the inner extension pipe structure of the preferred embodiment of the utility model.

[0031] Explanation of the reference numerals in the accompanying drawings in the specification: 1. base; 11. center through hole; 111. step surface; 2. pressure plate; 21. main body; 22. annular extension; 3. pipe sleeve; 4. gasket; 41. annular protrusion; 5. inner extension pipe; 6. branch pipe. DETAILED DESCRIPTION

[0032] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0033] Example 1

[0034] Reference Figures 1-8 As shown, an inner extension tube structure of the utility model includes:

[0035] The base 1 has a central through hole 11 coaxially formed thereon. The central through hole 11 is a stepped hole including a stepped surface 111.

[0036] The pressing plate 2 includes an annular main portion 21, which is coaxially connected to the end of the base 1 on the side close to the step surface 111 by a fastener, and an annular extension portion 22 extending into the central through hole 11 is coaxially provided on the side of the main portion 21 facing the step surface 111;

[0037] The pipe sleeve 3 is an annular plate structure. The pipe sleeve 3 is embedded in the central through hole 11 and is tightly pressed between the annular extension portion 22 and the step surface 111. A gasket 4 is provided between the pipe sleeve 3 and the step surface 111.

[0038] An inner extension tube 5, which is coaxially connected to the inner hole of the sleeve 3;

[0039] The branch pipe 6 is detachably connected to one end of the inner extension pipe 5 away from the pressing plate 2 .

[0040] Installation process: Weld the end of the base 1 away from the stepped surface 111 to the tank body of the reactor, aligning it with the position of the through-hole. Then, install the connected pipe sleeve 3, inner extension pipe 5, and branch pipe 6 into the central through-hole 11. During the installation process, place a gasket 4 between the stepped surface 111 and the pipe sleeve 3. Then, press the pressure plate 2 onto the pipe sleeve 3 and connect it to the base 1 with fasteners. Tighten the fasteners to ensure that the pressure plate 2 presses the pipe sleeve 3. Installation is complete. Alternatively, you can first connect the components together and then weld the base 1 to the tank body.

[0041] Specifically, branch pipe 6 is threadedly connected to one end of inner tube 5. When the screen inside the tank needs to be removed, the entire inner tube structure need not be disassembled; only branch pipe 6 is required to remove the screen, reducing installation difficulty and improving efficiency. Branch pipe 6 can be configured in a variety of different configurations depending on the specific situation; it only needs to have a connection structure at one end that can connect to inner tube 5.

[0042] Specifically, the inner extension pipe structure is a split structure. Compared with the integrated structure, its various components can be installed and disassembled in a relatively standard manner, which can reduce the difficulty of equipment installation and maintenance, thereby reducing the requirements for the operator's work skills and improving the efficiency of equipment loading and unloading; and the detachable design allows for rapid separation and replacement of damaged parts, greatly reducing maintenance time and cost, and improving the maintainability of the entire structure; at the same time, the split structure can be replaced with components of different sizes, materials or functions according to different application scenarios and needs, thereby realizing flexible adjustment of each component, thereby improving the versatility and economy of the entire inner extension pipe structure.

[0043] It should be noted that the base 1 is connected to the tank body by welding and will not be disassembled during subsequent use unless otherwise required, thus avoiding the risk of leakage at the connection between the base 1 and the tank body. Furthermore, since the connection between the inner tube 5 and the branch tube 6 is located within the tank body, even if leakage occurs at the connection between the inner tube 5 and the branch tube 6, there is no risk of bacterial contamination.

[0044] Reference Figure 2 and Figure 3 As shown, further, a plurality of bolt holes are vertically opened on the main body part 21 and are evenly arranged around its circumference, and a plurality of threaded holes corresponding to the positions of the bolt holes are opened at one end of the base 1. The main body part 21 is connected to the base 1 at the corresponding bolt holes and threaded holes through fasteners.

[0045] Furthermore, the main body portion 21 and the annular extension portion 22 are an integrally formed structure.

[0046] Furthermore, a first annular groove is coaxially defined on the stepped surface 111, and a second annular groove is coaxially defined on the surface of the sleeve 3 adjacent to the stepped surface 111. The gasket 4 is clamped between the stepped surface 111 and the sleeve 3, and an annular protrusion 41 is provided on each surface of the gasket 4, matching the first and second annular grooves. Specifically, the gasket 4 engages with the stepped surface 111 and the sleeve 3, respectively, via the annular protrusions 41. This ensures a good seal while preventing lateral displacement of the gasket 4 and facilitating installation.

[0047] Furthermore, a first chamfer is provided on a surface of the pipe sleeve 3 facing away from the gasket 4 , and a second chamfer is provided at the opening of the free end of the annular extension 22 , and the inclinations of the first chamfer and the second chamfer match.

[0048] Furthermore, one end of the branch pipe 6 is provided with an external thread, and the end of the inner tube 5 away from the pressure plate 2 is provided with an internal thread for screwing with the external thread. It is conceivable that the connection between the inner tube 5 and the branch pipe 6 is not limited to a single connection method, and can be connected by a threaded connection or various other methods such as a plug-in connection or a pin connection.

[0049] Furthermore, a fastening flat position is provided on the side surface of the branch pipe 6, and the fastening flat position can facilitate the operator to install and remove the branch pipe 6 using tools such as a wrench.

[0050] Furthermore, a sealing ring is provided between the branch pipe 6 and the inner extension pipe 5 .

[0051] Furthermore, the gasket 4 is made of polytetrafluoroethylene.

[0052] Example 2

[0053] The utility model also discloses a bioreactor, comprising the inner extension tube structure as in the first embodiment.

[0054] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An inner extension tube structure, characterized in that: include: A base, wherein a central through hole is coaxially formed on the base, and the central through hole is a stepped hole including a stepped surface; a pressure plate, the pressure plate comprising an annular main portion, the main portion being coaxially connected to the end of the base on a side close to the step surface by a fastener, and the main portion having an annular extension coaxially provided on a side facing the step surface and extending into the central through hole; A pipe sleeve, the pipe sleeve is an annular plate structure, the pipe sleeve is embedded in the central through hole and is tightly pressed between the annular extension and the step surface, and a gasket is provided between the pipe sleeve and the step surface; an inner extension tube, the inner extension tube being coaxially connected to the inner hole of the pipe sleeve; A branch pipe is detachably connected to an end of the inner extension pipe away from the pressing plate.

2. The inner extension tube structure according to claim 1, characterized in that: The main body is vertically provided with a plurality of bolt holes that are evenly spaced around its circumference, and one end of the base is provided with a plurality of threaded holes corresponding to the positions of the bolt holes, and the main body is connected to the base through fasteners at the corresponding bolt holes and threaded holes.

3. The inner extension tube structure according to claim 1, characterized in that: The main body portion and the annular extension portion are an integrally formed structure.

4. The inner extension tube structure according to claim 1, characterized in that: A first annular groove is coaxially provided on the step surface, a second annular groove is coaxially provided on a surface of the sleeve close to the step surface, the gasket is clamped between the step surface and the sleeve, and annular protrusions matching the first annular groove and the second annular groove are respectively provided on both surfaces of the gasket.

5. The inner extension tube structure according to claim 4, characterized in that: A first chamfer is provided on a surface of the sleeve facing away from the gasket, and a second chamfer is provided at the opening of the free end of the annular extension portion. The inclinations of the first chamfer and the second chamfer match.

6. The inner extension tube structure according to claim 1, characterized in that: One end of the branch pipe is provided with an external thread, and one end of the inner extension pipe away from the pressing plate is provided with an internal thread for screwing with the external thread.

7. The inner extension tube structure according to claim 1, characterized in that: A fastening flat portion is provided on the side surface of the branch pipe.

8. The inner extension tube structure according to claim 1, characterized in that: A sealing ring is provided between the branch pipe and the inner extension pipe.

9. The inner extension tube structure according to claim 1, characterized in that: The gasket is a polytetrafluoroethylene gasket.

10. A bioreactor, characterized in that: It comprises the inner extension tube structure according to any one of claims 1 to 9.