Detachable heat exchange device of fermentation tank
By designing a detachable heat exchanger assembly and a fixed support structure, the problems of low heat transfer efficiency and difficult cleaning of the fermenter heat exchanger were solved, achieving efficient and stable heat exchange effect and convenient maintenance process.
Patent Information
- Application Number
- CN202422963781.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-02
AI Technical Summary
Existing fermenter heat exchangers suffer from problems such as low heat transfer efficiency, difficulty in cleaning, and difficulty in disassembly and maintenance.
A detachable heat exchange device for a fermenter was designed, consisting of a fixed bracket and detachable heat exchange plates connected by fasteners. The surface of the heat exchange plates is corrugated, and each heat exchange plate is connected in parallel, resulting in a short distance between the inlet and outlet manifolds.
It improves heat exchange efficiency, enhances the versatility and stability of the device, reduces the risk of weld cracking, facilitates cleaning, and reduces dead corners and scaling.
Smart Images
Figure CN223550928U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of in-tank heat exchanger technology, and in particular to a detachable heat exchange device for a fermenter. Background Technology
[0002] In the fermentation industry, heat exchangers are frequently used to cool the fermentation broth or heat the fermentation substrate. Existing heat exchange devices mainly use spiral coils and tubes as their structural forms. These types of heat exchange devices have disadvantages such as large size, heavy load, low heat transfer coefficient, small specific surface area, complex internal structure, many dead corners, and many welds. As a result, heat exchange devices generally suffer from difficulties in cleaning, troubleshooting, disassembly and maintenance.
[0003] Therefore, in view of the shortcomings of the existing technology, it is necessary to design a detachable heat exchange device for the fermenter to solve the above problems.
[0004] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solution of this utility model and facilitating the understanding of those skilled in the art. It should not be assumed that the above content is known to those skilled in the art simply because it has been described in the background section of this utility model. Utility Model Content
[0005] To overcome the shortcomings of the prior art, the present invention aims to disclose a detachable heat exchange device for fermenters, which solves the problems of low heat exchange efficiency, difficult cleaning, and difficult disassembly and maintenance of traditional fermenter heat exchangers.
[0006] This utility model discloses a detachable heat exchange device for a fermenter, including a fixed bracket, several heat exchange plates, and fasteners installed inside the tank. The fixed bracket is located on the side wall of the tank, and positioning flanges are provided at both ends of the fixed bracket. The positioning flanges are connected to the heat exchange inlet pipe and the heat exchange outlet pipe, respectively. An annular boss connecting seat is provided at the end of the positioning flange away from the tank. The surface of the heat exchange plate is corrugated. A transition flange is provided at the corresponding position of the heat exchange plate and the positioning flange. The transition flanges on the heat exchange plate are connected by a honeycomb flow channel. An annular boss and an annular groove are provided at both ends of the transition flange. The annular boss and the annular groove are engaged to make the heat exchange plates stacked together with gaps to form a heat exchange plate group. A sealing end cap is provided at the end of the transition flange away from the tank on the heat exchange plate group. The fasteners pass through the sealing end cap and the transition flange in sequence and are detachably connected to the positioning flange.
[0007] Preferred technical solution: The fixed bracket includes an end plate welded vertically to the side wall of the tank, and positioning flanges are set at the upper and lower ends of the end plate; an expansion joint is provided on the side of the positioning flange near the tank, and the two positioning flanges are connected to the heat exchange inlet pipe and the heat exchange outlet pipe respectively through the expansion joint.
[0008] Preferred technical solution: Several guide rods are also provided on the end plate, and guide holes are provided at the corresponding positions of the heat exchange plates. The front end of the guide rod passes through the guide hole to reach the side of the heat exchange plate group away from the tank body for locking and fixing.
[0009] Preferred technical solution: A plate pressure rod is provided on the side of the heat exchange plate group away from the tank body. The upper and lower ends of the plate pressure rod are fixed on the corresponding sealing end caps. Pressure plates are provided on both sides of the plate pressure rod, and the pressure plates are fastened to the front end of the guide rod.
[0010] Preferred technical solution: The inner ring of the guide hole is riveted with a flanged gasket to prevent delamination leakage at the guide hole.
[0011] Preferred technical solution: A spacer is also slidably connected to the outer periphery of the guide rod to prevent wear during disassembly and assembly and to bear the radial load of the heat exchange fins.
[0012] Preferred technical solution: The end plate is welded and fixed to the tank body through foot plates, making the connection between the end plate and the tank body more stable.
[0013] Preferred technical solution: The heat exchange inlet pipe and the heat exchange outlet pipe are located on the outside of the tank body, the rear end of the expansion joint passes through the side wall of the tank body and is welded to it, and the rear ends of the two expansion joints are respectively connected to the heat exchange inlet pipe and the heat exchange outlet pipe.
[0014] Preferred technical solution: Sealing gaskets are provided between the annular boss and the annular groove, and between the annular groove and the annular boss connecting seat.
[0015] Preferred technical solution: The center hole of the adapter flange is provided with at least two branch flow channels along the circumference, and the branch flow channels are connected to the honeycomb flow channels by welding.
[0016] Due to the application of the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows:
[0017] This utility model discloses a detachable heat exchange device for a fermenter. A group of heat exchange plates, consisting of several plates, is detachably mounted on a fixed support using fasteners. The heat exchange plates are stacked and interlocked, and their number can be adjusted as needed, enhancing the versatility of the heat exchange device. The surface of the heat exchange plates is corrugated, smooth, and free of dead corners, making it less prone to scaling and easy to clean. Gaps are left between the heat exchange plates, giving them the advantages of a large specific surface area and a high heat transfer coefficient. Using heat exchange plates is more flexible than heat exchange tubes, resulting in less internal stress caused by thermal expansion, effectively reducing the risk of weld cracking and improving the stability of the heat exchange device. The fixed support is welded to the tank body and serves as a heat exchange transfer component, making circumferential arrangement more convenient. Each heat exchange plate is connected in parallel, resulting in a short distance between the inlet and outlet main pipes and high heat exchange efficiency. Attached Figure Description
[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the axial side structure of a detachable heat exchange device for a fermenter according to the present invention;
[0020] Figure 2 This is a cross-sectional view of the assembly of a detachable heat exchange device for a fermenter according to the present invention.
[0021] Figure 3 for Figure 2 A magnified view of a portion of section II;
[0022] Figure 4 This is a schematic diagram of the structure of the fixed bracket in this utility model;
[0023] Figure 5 This is a schematic diagram of the heat exchange plate in this utility model;
[0024] Figure 6 for Figure 5 A cross-sectional view taken along line AA.
[0025] Figure 7 for Figure 5 A magnified view of a portion of point I;
[0026] Figure 8 for Figure 7 A sectional view taken along line BB.
[0027] In the attached diagrams above, 100 is the tank body; 1 is the fixed bracket; 11 is the positioning flange; 11a is the annular boss connecting seat; 12 is the end plate; 12a is the guide rod; 12b is the spacer; 12c is the foot plate; 13 is the expansion joint; 2 is the heat exchange plate; 21 is the transition flange; 21a is the annular boss; 21b is the annular groove; 21c is the sealing end cover; 21d is the branch flow channel; 22 is the honeycomb flow channel; 23 is the guide hole; 23a is the flanged gasket; 3 is the fastener; 4 is the heat exchange inlet pipe; 5 is the heat exchange outlet pipe; 6 is the plate pressure bar; 61 is the pressure plate; and 7 is the sealing gasket. Detailed Implementation
[0028] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.
[0029] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate for the purposes of describing embodiments of this application herein. Furthermore, the terms "comprising" and "having," and their synonyms, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0030] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the present invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0031] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.
[0032] Furthermore, the terms "installation," "setting," "equipped with," "connection," "linking," "fitting," and "fitting" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Similarly, "fitting" can mean completely or partially fitted. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0033] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0034] Example 1:
[0035] like Figure 1As shown, this utility model discloses a detachable heat exchange device for a fermenter, including a fixed bracket 1, several heat exchange plates 2, and fasteners 3 disposed inside the tank body 100. The main components of this utility model will be described in detail below: Figure 1 , Figure 2 and Figure 4 As shown, the fixed bracket 1 is installed on the side wall of the tank body 100. The upper and lower ends of the fixed bracket 1 are provided with positioning flanges 11. The positioning flanges 11 are connected to the heat exchange inlet pipe 4 and the heat exchange outlet pipe 5 respectively. The end of the positioning flange 11 away from the tank body 100 is provided with an annular boss connecting seat 11a.
[0036] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, the surface of the heat exchange plate 2 is corrugated. The heat exchange plate 2 is provided with a transition flange 21 at the corresponding position of the positioning flange 11. The transition flanges 21 on the heat exchange plate 2 are connected by a honeycomb flow channel 22. The two ends of the transition flange 21 are respectively provided with annular boss 21a and annular groove 21b. The annular boss 21a and annular groove 21b are engaged to make the heat exchange plates 2 stacked together with gaps to form a heat exchange plate group. The end of the transition flange 21 on the side away from the tank body 100 on the heat exchange plate group is provided with a sealing end cap 21c.
[0037] like Figure 1 , Figure 2 and Figure 3 As shown, the fastener 3 passes through the sealing end cover 21c and the adapter flange 21 in sequence and is detachably connected to the positioning flange 11. In this embodiment, a threaded rod with a lock nut is used as the fastener.
[0038] refer to Figures 1 to 8 As shown, the usage method and principle of this utility model are as follows: In use, the heat exchange plates 2 are nested and fixed onto the positioning flange 11 one by one through the annular boss 21a and the annular groove 21b, so that the transition flange 21 is connected to the positioning flange 11. Then, the sealing end cap 21c is sealed to the end of the transition flange 21 by the fastener 3, so that the external heat exchange inlet pipe 4 and heat exchange outlet pipe 5 form a closed loop with the heat exchange plates 2. After installation, the fastener 3 presses the stacked heat exchange plates 2 onto the fixed bracket 1. The nested design of its concave and convex surfaces... It can effectively bear the gravity load of the heat exchange device and the circumferential dynamic load of the medium inside the tank on the surface of the heat exchange plate 2 under the action of the agitator; the small size of a single heat exchange plate 2 allows it to be placed and removed through the maintenance manhole on the tank body 100, making disassembly and assembly convenient; the heat exchange plate 2 adopts a corrugated surface structure, which can improve the turbulence effect and heat exchange effect when the medium inside and outside the heat exchange surface passes through the heat exchange surface, increasing the specific surface area; the surface of the heat exchange plate 2 is smooth and without dead corners, making it less prone to scaling and easy to clean; each heat exchange plate 2 is connected in parallel, with a short distance between the inlet and outlet main pipes, resulting in high heat exchange efficiency.
[0039] Example 2:
[0040] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in order to facilitate the installation of heat exchange plates and connection with external pipelines, the fixed bracket 1 has an end plate 12 welded on the side wall of the tank 100 in the vertical direction, and the positioning flange 11 is set at the upper and lower ends of the end plate 12; the positioning flange 11 is provided with an expansion joint 13 on the side of the tank 100 near the tank body, and the two positioning flanges 11 are connected to the heat exchange inlet pipe 4 and the heat exchange outlet pipe 5 respectively through the expansion joint 13.
[0041] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7 As shown, further, the end plate 12 is also provided with several guide rods 12a, and the heat exchange plate 2 is provided with guide holes 23 at the corresponding positions. The front end of the guide rod 12a passes through the guide hole 23 to reach the side of the heat exchange plate group away from the tank 100 for locking and fixing, thereby improving the stability of the heat exchange plate 2 installation.
[0042] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a spacer 12b is further slidably connected to the outer periphery of the guide rod 12a. The spacer 12b prevents wear between the guide rod 12a and the heat exchange plate 2 and bears the radial load of the heat exchange plate 2.
[0043] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, further, a plate pressure rod 6 is provided on the side of the heat exchanger assembly away from the tank 100. The upper and lower ends of the plate pressure rod 6 are fixed on the corresponding sealing end cap 21c. Pressure plates 61 are provided on both sides of the plate pressure rod 6. The pressure plates 61 are fastened to the front end of the guide rod 12a. The heat exchanger assembly is limited and pressed by the plate pressure rod 6 to prevent the heat exchanger 2 from deforming.
[0044] like Figure 1 , Figure 7 and Figure 8 As shown, a flanged gasket 23a is further riveted to the inner ring of the guide hole 23 to increase the sealing at the guide hole 23 and prevent the heat exchange plate 2 from delamination and leakage at the connection.
[0045] like Figure 1 , Figure 2 and Figure 4As shown, the end plate 12 is further fixed to the tank body 100 by welding through the foot plate 12c, which reduces the influence of the arc surface of the tank body 100 on the welding of the end plate 12 and improves the stability of the end plate 12.
[0046] like Figure 1 , Figure 2 and Figure 3 As shown, further, the heat exchange inlet pipe 4 and the heat exchange outlet pipe 5 are arranged on the outside of the tank body 100, and the rear end of the expansion joint 13 passes through the side wall of the tank body 100 and is welded to it. The rear ends of the two expansion joints 13 are respectively connected to the heat exchange inlet pipe 4 and the heat exchange outlet pipe 5, so that the arrangement of the heat exchange device is no longer limited by the position of the heat exchange inlet pipe 4 and the heat exchange outlet pipe 5.
[0047] Example 3:
[0048] like Figure 1 , Figure 2 and Figure 3 As shown, in order to increase the sealing performance of the heat exchanger installation, sealing gaskets 7 are provided between the annular boss 21a and the annular groove 21b, and between the annular groove 21b and the annular boss connecting seat 11a.
[0049] Example 4:
[0050] like Figure 1 , Figure 5 and Figure 6 As shown, in order to increase the heat exchange performance of the heat exchange device, the center hole of the transition flange 21 is provided with eight branch flow channels 21d along the circumference. The branch flow channels 21d are connected to the honeycomb flow channel 22 by welding, thereby improving the heat exchange efficiency by increasing the flow capacity of the heat exchange plates.
[0051] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A detachable heat exchange device for a fermenter, comprising a fixed support (1) disposed inside the tank body (100), a plurality of heat exchange plates (2) and fasteners (3), characterized in that: The fixed bracket (1) is located on the side wall of the tank body (100). The fixed bracket (1) has positioning flanges (11) at its upper and lower ends. The positioning flanges (11) are connected to the heat exchange inlet pipe (4) and the heat exchange outlet pipe (5) respectively. The end of the positioning flange (11) away from the tank body (100) is provided with an annular boss connecting seat (11a). The surface of the heat exchange plate (2) is corrugated. The heat exchange plate (2) is provided with a transition flange (21) at the corresponding position of the positioning flange (11). The transition flanges (21) on the heat exchange plate (2) are connected by a honeycomb structure. The concave flow channel (22) is connected. The two ends of the transition flange (21) are respectively provided with annular boss (21a) and annular groove (21b). The annular boss (21a) and the annular groove (21b) are engaged to make the heat exchange plates (2) stacked together with gaps to form a heat exchange plate group. The end of the transition flange (21) on the side away from the tank body (100) of the heat exchange plate group is provided with a sealing end cap (21c). The fastener (3) passes through the sealing end cap (21c) and the transition flange (21) in sequence and is detachably connected to the positioning flange (11).
2. The detachable heat exchange device for a fermenter according to claim 1, characterized in that: The fixed bracket (1) includes an end plate (12) welded vertically to the side wall of the tank (100), and the positioning flange (11) is provided at the upper and lower ends of the end plate (12); the positioning flange (11) is provided with an expansion joint (13) on the side of the tank (100) near the tank, and the two positioning flanges (11) are connected to the heat exchange inlet pipe (4) and the heat exchange outlet pipe (5) respectively through the expansion joint (13).
3. The detachable heat exchange device for a fermenter according to claim 2, characterized in that: The end plate (12) is also provided with a number of guide rods (12a), and the heat exchange plate (2) is provided with guide holes (23) at corresponding positions. The front end of the guide rod (12a) passes through the guide hole (23) and reaches the side of the heat exchange plate group away from the tank (100) for locking and fixing.
4. The detachable heat exchange device for a fermenter according to claim 3, characterized in that: A plate pressure rod (6) is provided on the side of the heat exchange plate group away from the tank body (100). The upper and lower ends of the plate pressure rod (6) are fixed on the corresponding sealing end cap (21c). Pressure plates (61) are provided on both sides of the plate pressure rod (6). The pressure plates (61) are fastened to the front end of the guide rod (12a).
5. The detachable heat exchange device for a fermenter according to claim 4, characterized in that: The inner ring of the guide hole (23) is riveted with a flanged washer (23a).
6. The detachable heat exchange device for a fermenter according to claim 5, characterized in that: A spacer (12b) is also slidably connected to the outer periphery of the guide rod (12a).
7. A detachable heat exchange device for a fermenter according to claim 6, characterized in that: The end plate (12) is welded and fixed to the tank body (100) via foot plate (12c).
8. A detachable heat exchange device for a fermenter according to claim 7, characterized in that: The heat exchange inlet pipe (4) and the heat exchange outlet pipe (5) are located on the outside of the tank body (100). The rear end of the expansion joint (13) passes through the side wall of the tank body (100) and is welded to it. The rear ends of the two expansion joints (13) are respectively connected to the heat exchange inlet pipe (4) and the heat exchange outlet pipe (5).
9. A detachable heat exchange device for a fermenter according to claim 1, characterized in that: Sealing gaskets (7) are provided between the annular boss (21a) and the annular groove (21b) and between the annular groove (21b) and the annular boss connecting seat (11a).
10. A detachable heat exchange device for a fermenter according to claim 1, characterized in that: The center hole of the adapter flange (21) is provided with at least two branch channels (21d) along the circumference, and the branch channels (21d) are connected to the honeycomb channel (22) by welding.