Cleaning device for outer half pipe of fermentation tank
By installing a sight glass and a cleaning device that slides between the inner and outer tubes on the outer half of the fermenter, the scaling problem of the outer half of the tube is solved, enabling convenient cleaning, improving production efficiency and heat exchange efficiency, and extending the service life of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINANBESTZYME BIO ENG CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-05-08
AI Technical Summary
During use, calcium and magnesium salts in the water tend to deposit on the outer half of the existing fermenter, leading to a decrease in heat exchange efficiency. Furthermore, the cleaning process is cumbersome, and it is impossible to observe and clean the scale layer in a timely manner, which affects production efficiency and energy consumption.
A cleaning device for the outer half-pipe of a fermenter was designed. A sight glass was installed to observe the scaling. The scale layer was cleaned by sliding connection and friction between the inner and outer pipes. The design of the mesh pipe and elastic element made cleaning convenient.
This enabled timely cleaning of the outer half-pipe, improved production efficiency, reduced energy consumption, and extended the service life of the equipment.
Smart Images

Figure CN224208728U_ABST
Abstract
Description
Technical Field
[0001] This application relates to a cleaning device for the outer half-pipe of a fermenter, belonging to the field of fermenter technology. Background Technology
[0002] A fermenter is an industrial device used for microbial fermentation. Its main body is generally a cylindrical body made of stainless steel. Common fermenters are divided into solid fermenters and liquid fermenters. Based on different volumes and uses, fermenters are divided into seed tanks and fermentation tanks. They play an irreplaceable role in microbial research and engineering.
[0003] The outer half-tube of a fermenter is a spiral heat exchange structure welded to the outer wall of the tank. It controls the temperature of the material inside the tank by circulating a heating / cooling medium. It features a compact structure and strong pressure resistance. However, with prolonged operation, calcium and magnesium salts in the water tend to deposit on the inner wall of the outer half-tube, leading to a decrease in heat exchange efficiency. To remove the scale buildup, the outer half-tube must be disassembled for cleaning, which is cumbersome and affects production efficiency. Furthermore, the lack of an observation port prevents direct observation of the scale buildup inside the tube, hindering timely and effective cleaning and increasing energy consumption. Utility Model Content
[0004] To address the aforementioned issues, this application proposes a fermenter outer half-pipe cleaning device that allows for real-time observation of scaling inside the outer half-pipe and timely cleaning. This device is easy to operate, improves production efficiency, and reduces energy consumption.
[0005] This utility model provides the following technical solution:
[0006] A fermenter outer tube cleaning device includes a tank body and an outer tube. The outer tube is spirally arranged on the outer wall of the tank body. A sight glass is installed on the outer tube. The outer tube includes an inner tube and an outer tube. The outer tube is sleeved on the outside of the inner tube. One end of the inner tube is connected to a sliding bearing and a handle in sequence. The sliding bearing is installed on the outer tube. The other end of the inner tube is slidably connected to the outer tube. The inner tube is composed of several mesh tubes. Adjacent mesh tubes are connected by a first elastic element.
[0007] Optionally, the inner tube is provided with a bending ring at the end away from the handle, and a retaining ring is provided at the end of the bending ring away from the inner tube. The outer tube is provided with a retaining groove at the end near the bending ring, and the retaining ring is engaged in the retaining groove.
[0008] Optionally, a second elastic element is installed between the retaining ring and the retaining groove.
[0009] Optionally, the sliding bearing includes a bearing housing, a bearing cover is bolted to the side wall of the bearing housing, a bearing bush is provided between the bearing housing and the bearing cover, and a journal is provided inside the bearing bush.
[0010] Optionally, the handle is connected to the inner tube via a journal, and the bearing seat and bearing cover are connected to the outer tube.
[0011] Optionally, the network tube includes a core and a covering layer that covers the core, wherein the core is a copper core or a carbon-plastic alloy core, and the covering layer is a carbon-plastic alloy layer.
[0012] Optionally, the ratio of the diameter of the core to the thickness of the covering layer is 1:(0.3-0.8).
[0013] Optionally, the first elastic element is a spring.
[0014] Optionally, the second elastic element is rubber or polyurethane elastomer.
[0015] Optionally, the sight glass is a stainless steel sight glass.
[0016] The beneficial effects that this application may produce include, but are not limited to:
[0017] The fermenter outer tube cleaning device provided in this application features a sight glass installed on the outer tube, allowing direct observation of the scaling inside the tube and enabling timely and effective cleaning. A sliding connection between the inner and outer tubes allows the inner tube to rotate freely within the outer tube, generating friction to remove deposited scale. The operator can manipulate the inner tube via a handle, making cleaning more convenient and efficient. The inclusion of a mesh tube and a first elastic element allows the inner tube to be finely adjusted according to thermal expansion and contraction or mechanical vibration, avoiding stress concentration caused by rigid connections and extending its service life. This fermenter outer tube cleaning device is easy to operate, effectively cleaning scale buildup inside the outer tube and preventing long-term deposition, thus helping the outer tube maintain high heat exchange efficiency for an extended period. Attached Figure Description
[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0019] Figure 1 This is a schematic diagram of the structure of the fermenter outer half-pipe cleaning device according to an embodiment of this application;
[0020] Figure 2 This is a schematic diagram of the structure of the outer half-tube involved in an embodiment of this application;
[0021] Figure 3 This is a schematic diagram of the sliding connection structure between the inner tube and the outer tube involved in the embodiments of this application;
[0022] Figure 4This is a schematic diagram of the connection structure of the sliding bearing involved in the embodiments of this application;
[0023] Figure 5 This is a schematic diagram of the network management system involved in the embodiments of this application;
[0024] List of components and reference numerals:
[0025] 1. Tank body, 2. Outer half-pipe, 3. Sight glass, 4. Inner tube, 5. Outer tube, 6. Sliding bearing, 7. Handle, 8. First elastic element, 9. Bending ring, 10. Snap ring, 11. Snap groove, 12. Second elastic element, 13. Bearing seat, 14. Bearing cover, 15. Bearing bush, 16. Journal, 17. Mesh tube, 18. Core, 19. Coating layer. Detailed Implementation
[0026] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.
[0027] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0028] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.
[0029] Furthermore, it should be understood in the description of this application that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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 application.
[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.
[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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, an electrical connection, or a communication 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 application according to the specific circumstances.
[0032] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.
[0033] Reference Figure 1-5 This application describes a fermenter external half-pipe cleaning device.
[0034] The fermenter outer tube cleaning device according to this embodiment includes a tank body 1 and an outer tube 2. The outer tube 2 is spirally arranged on the outer wall of the tank body 1. A sight glass 3 is installed on the outer tube 2 to facilitate direct observation of the scaling inside the outer tube 2, thereby enabling timely and effective cleaning of the outer tube 2. The outer tube 2 includes an inner tube 4 and an outer tube 5. The outer tube 5 is sleeved on the outside of the inner tube 4. One end of the inner tube 4 is connected in sequence to a sliding bearing 6 and a handle 7. The sliding bearing 6 is installed on the outer tube 5. The other end of the inner tube 4 is slidably connected to the outer tube 5, allowing the inner tube 4 to rotate flexibly inside the outer tube 5 and generate friction with the outer tube 5, thereby removing the deposited scale layer. The operator operates the inner tube 4 through the handle 7, making the cleaning work more convenient and efficient. The inner tube 4 is composed of several mesh tubes 17. Adjacent mesh tubes 17 are connected by a first elastic element 8, allowing the inner tube 4 to be finely adjusted with thermal expansion and contraction or mechanical vibration, avoiding stress concentration caused by rigid connection, thereby extending its service life.
[0035] In one implementation, a bending ring 9 is provided at the end of the inner tube 4 away from the handle 7, and a retaining ring 10 is provided at the end of the bending ring 9 away from the inner tube 4. A retaining groove 11 is provided at the end of the outer tube 5 near the bending ring 9. The retaining ring 10 is engaged in the retaining groove 11, making the connection between the inner tube 4 and the outer tube 5 more secure and ensuring the continuous and stable operation of the cleaning work.
[0036] As one implementation, a second elastic element 12 is installed between the retaining ring 10 and the retaining groove 11, which can absorb some energy, reduce the hard collision between the inner tube 4 and the outer tube 5, and ensure the structural integrity of the outer half tube 2.
[0037] In one embodiment, the sliding bearing 6 includes a bearing housing 13, and a bearing cover 14 is bolted to the side wall of the bearing housing 13. A bearing bush 15 is provided between the bearing housing 13 and the bearing cover 14. A journal 16 is provided inside the bearing bush 15, which provides stable support for the inner tube 4 and ensures that it can rotate smoothly around the axis of the journal 16.
[0038] In one implementation, the handle 7 is connected to the inner tube 4 via the journal 16, allowing the operator to control the rotation of the inner tube 4 via the handle 7. The bearing seat 13 and the bearing cover 14 are connected to the outer tube 5, providing stable support for the journal 16 and the inner tube 4 connected to the journal 16.
[0039] In one embodiment, the mesh tube 17 includes a core 18 and a covering layer 19 that covers the core 18. The core 18 is a copper core 18 or a carbon-plastic alloy core 18, and the covering layer 19 is a carbon-plastic alloy layer. Preferably, the core 18 is a copper core 18 and the covering layer 19 is a carbon-plastic alloy layer. This configuration not only improves the durability of the mesh tube 17, but also ensures the efficient heat exchange of the outer half tube 2.
[0040] In one implementation, the ratio of the diameter of the core 18 to the thickness of the covering layer 19 is 1:(0.3-0.8), preferably 1:0.5, which balances the mechanical strength and thermal conductivity of the mesh tube 17, enabling it to maintain good mechanical stability and heat exchange effect for a long time.
[0041] In one implementation, the first elastic element 8 is a spring, which enables adjacent network tubes 17 to maintain tightness and stability of connection under different operating conditions.
[0042] In one embodiment, the second elastic element 12 is a rubber or polyurethane elastomer, which can not only adapt to the relative displacement and deformation between the inner tube 4 and the outer tube 5, but also form an effective seal at the connection between the two.
[0043] As one implementation method, the sight glass 3 is a stainless steel sight glass 3, which can maintain stable performance during use and reduce the damage and replacement frequency of the sight glass 3.
[0044] During use, the scale buildup inside the outer half-pipe 2 can be observed through the sight glass 3. If cleaning is required, water containing a cleaning agent (such as acid or alkali) can be introduced into the outer half-pipe 2. At the same time, the operator can turn the handle 7 and rotate the inner tube 4 to clean the scale layer attached to the outer half-pipe 2. The operation is convenient and can prevent the scale layer from accumulating in the outer half-pipe 2 for a long time, thus affecting the heat exchange efficiency.
[0045] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.
[0046] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.
Claims
1. A cleaning device for the outer half-pipe of a fermentation tank, comprising a tank body and an outer half-pipe, wherein the outer half-pipe is spirally arranged on the outer wall of the tank body, characterized in that, A sight glass is installed on the outer half-tube. The outer half-tube includes an inner tube and an outer tube. The outer tube is sleeved on the outside of the inner tube. One end of the inner tube is connected to a sliding bearing and a handle in sequence. The sliding bearing is installed on the outer tube. The other end of the inner tube is slidably connected to the outer tube. The inner tube is composed of several mesh tubes. Adjacent mesh tubes are connected by a first elastic element.
2. The fermenter outer half-pipe cleaning device according to claim 1, characterized in that, The inner tube has a bending ring at the end away from the handle, and a retaining ring at the end of the bending ring away from the inner tube. The outer tube has a retaining groove at the end near the bending ring, and the retaining ring is engaged in the retaining groove.
3. The fermenter outer half-pipe cleaning device according to claim 2, characterized in that, A second elastic element is installed between the retaining ring and the retaining groove.
4. The fermenter outer half-pipe cleaning device according to claim 1, characterized in that, The sliding bearing includes a bearing housing, a bearing cover is bolted to the side wall of the bearing housing, a bearing bush is provided between the bearing housing and the bearing cover, and a journal is provided inside the bearing bush.
5. The fermenter outer half-pipe cleaning device according to claim 4, characterized in that, The handle is connected to the inner tube via a journal, and the bearing seat and bearing cover are connected to the outer tube.
6. The fermenter outer half-pipe cleaning device according to claim 1, characterized in that, The network tube includes a core and a covering layer that covers the core. The core is a copper core or a carbon-plastic alloy core, and the covering layer is a carbon-plastic alloy layer.
7. The fermenter outer half-pipe cleaning device according to claim 6, characterized in that, The ratio of the diameter of the core to the thickness of the covering layer is 1:(0.3-0.8).
8. The fermenter outer half-pipe cleaning device according to claim 1, characterized in that, The first elastic element is a spring.
9. The fermenter outer half-pipe cleaning device according to claim 3, characterized in that, The second elastic element is a rubber or polyurethane elastomer.
10. The fermenter outer half-pipe cleaning device according to claim 1, characterized in that, The sight glass is a stainless steel sight glass.