Anti-blocking silicon carbide heat exchanger for high viscosity crystallizable media

Abstract

The utility model discloses a kind of anti-blocking silicon carbide heat exchangers for high viscosity easy crystallization medium, the utility model relates to high viscosity easy crystallization medium processing technical field, the utility model, including: ware body, the ware body is fixedly connected by flange, the inner wall of ware body is fixedly connected with heat exchange device, the outer wall of ware body is fixedly connected with input pipe mouth;By setting heat exchange device, spiral U-shaped tube forms stable turbulent flow when medium flows, reduce the residence time in pipe wall, reduce crystallization attachment possibility, its arc turning design eliminates the dead angle of traditional right-angle structure, avoid medium to be accumulated here due to flow velocity sudden change, from flow passage form, block source, guide block guides medium to flow through heat exchange area along preset path evenly, prevent the dead zone of medium stationary in ware body, simultaneously cooperate support plate optimization flow field, ensure that medium covers U-shaped tube heat exchange surface comprehensively, support plate is fixed U-shaped tube to avoid medium impact, cause the purpose of displacement deformation.

Description

Technical Field

[0001] This utility model relates to the field of high-viscosity, easily crystallizing media processing technology, specifically to an anti-clogging silicon carbide heat exchanger for high-viscosity, easily crystallizing media. Background Technology

[0002] In the fields of chemical engineering, pharmaceuticals, food processing, and energy, heat exchange of high-viscosity, easily crystallizing media is a critical link in the production process. Due to the strong intermolecular forces, such media exhibit high viscosity characteristics, and when the temperature fluctuates, the flow rate slows down, or the composition changes, solid crystal particles are easily precipitated, leading to blockage of the heat exchanger flow channels.

[0003] Currently, heat exchange equipment for high-viscosity, easily crystallizing media mainly relies on traditional metal heat exchangers or ordinary ceramic heat exchangers. The heat exchange tubes of existing heat exchangers mostly adopt straight tubes or simple U-shaped tube structures, and the bends are often designed at right angles. When high-viscosity media flow in the straight tube channel, laminar flow is easily formed. The flow velocity in the contact area between the medium and the tube wall is slow, the residence time is long, and it is easy for the medium to adhere to the tube wall and gradually crystallize. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides an anti-clogging silicon carbide heat exchanger for high-viscosity, easily crystallizing media, solving the problem of easy clogging during heat exchange of such media.

[0006] (II) Technical Solution

[0007] To solve the above problems, this utility model is achieved through the following technical solution: a clogging-resistant silicon carbide heat exchanger for high-viscosity, easily crystallizing media, comprising: a body, the body being fixedly connected by a flange, a heat exchange device being fixedly connected to the inner wall of the body, an inlet pipe being fixedly connected to the outer wall of the body, an outlet pipe being fixedly connected to the outer wall of the body, the heat exchange device including a support plate, and a U-shaped tube being snapped into the inner wall of the support plate.

[0008] Preferably, the U-shaped pipe is spiral-shaped, and the bend of the U-shaped pipe is an arc-shaped pipe. Compared with traditional straight pipes or right-angle bend pipes, the spiral U-shaped pipe can form stable turbulence during the flow of high-viscosity media, reduce the residence time of the media on the pipe wall, reduce the probability of crystal adhesion, and the arc-shaped structure at the bend completely eliminates right-angle dead corners, avoiding the accumulation of media due to sudden changes in flow velocity at the bend. It blocks the key node of crystallization blockage from the root of the flow channel shape, and is especially suitable for the flow characteristics of easily crystallizing media.

[0009] Preferably, the outer wall of the support plate is fixedly connected to the inner wall of the vessel body.

[0010] Preferably, the inner wall of the device is fixedly connected with a flow guide block, and the structure of the flow guide block contacting the support plate can further optimize the flow field distribution, ensure that the medium fully covers the heat exchange surface of the U-shaped tube, and prevent crystal accumulation caused by local slow flow velocity, thereby enhancing the reliability of anti-clogging.

[0011] Preferably, the drain block is located between the inlet and outlet, and the end of the drain block away from the device body is in contact with the side wall of the support plate.

[0012] Beneficial effects

[0013] This invention provides an anti-clogging silicon carbide heat exchanger for high-viscosity, easily crystallizing media. It offers the following advantages:

[0014] This utility model, by setting up a heat exchange device, uses a spiral U-shaped tube to create stable turbulence when the medium flows, reducing the residence time on the tube wall and lowering the possibility of crystal adhesion. Its arc-shaped bend design eliminates the dead corners of traditional right-angle structures, preventing the medium from accumulating due to sudden changes in flow velocity. It blocks the source of blockage from the flow channel morphology. The guide block guides the medium to flow evenly through the heat exchange area along a preset path, preventing dead zones where the medium remains stationary inside the device. At the same time, the support plate optimizes the flow field, ensuring that the medium fully covers the heat exchange surface of the U-shaped tube. The support plate not only fixes the U-shaped tube to prevent the medium from impacting and causing displacement and deformation, but also forms an integral force-bearing structure with the device body, improving the long-term operational stability of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the heat exchange device of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the U-shaped tube of this utility model.

[0019] In the diagram: 1. Body; 2. Heat exchanger; 20. Support plate; 21. U-shaped tube; 22. Drain block; 3. Inlet port; 4. Outlet port. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example

[0022] Please see Figures 1-4 This utility model provides a technical solution: an anti-clogging silicon carbide heat exchanger for high-viscosity, easily crystallizing media, comprising:

[0023] The heat exchanger consists of a body 1, which is fixedly connected by a flange. A heat exchange device 2 is fixedly connected to the inner wall of the body 1, an inlet 3 is fixedly connected to the outer wall of the body 1, and an outlet 4 is fixedly connected to the outer wall of the body 1. In use, the heat exchanger achieves efficient heat exchange of high-viscosity, easily crystallizing media through the synergistic effect of the body 1 and the heat exchange device 2, while blocking the risk of blockage from the dimensions of flow path and structural stability.

[0024] The heat exchange device 2 includes a support plate 20, with a U-shaped tube 21 clamped to the inner wall of the support plate 20. The U-shaped tube 21 is spiral-shaped, and the bend of the U-shaped tube 21 is an arc-shaped tube. The outer wall of the support plate 20 is fixedly connected to the inner wall of the container 1. The double fixing structure can resist the impact pressure generated by the flow of the medium, prevent the U-shaped tube 21 from shifting or deforming, and ensure the stability of the flow channel cross section. The U-shaped tube 21 adopts a spiral design, and the bend is an arc-shaped tube. The spiral structure can extend the flow path of the medium within the limited space of the container 1, greatly increase the contact area between the medium and the U-shaped tube 21, and at the same time make the medium form stable turbulence, improve the heat transfer coefficient, and efficiently complete the heat exchange with the heat exchange medium inside the U-shaped tube 21. The arc bend completely eliminates the right-angle dead angle and avoids the medium from stagnating at the bend due to the sudden change in flow velocity.

[0025] A flow guide block 22 is fixedly connected to the inner wall of the vessel body 1. The flow guide block 22 is located between the inlet port 3 and the outlet port 4. The end of the flow guide block 22 away from the vessel body 1 is in contact with the side wall of the support plate 20. The inlet port 3 on the outer wall of the vessel body 1 is connected to the outlet end of the high-viscosity easily crystallizing medium container through a flange, and the outlet port 4 on the outer wall of the vessel body 1 is connected to the inlet end of the high-viscosity easily crystallizing medium container after heat exchange through a flange. Then, the vessel body 1 is started, and the high-viscosity easily crystallizing medium enters the interior of the vessel body 1 through the inlet port 3 on the outer wall of the vessel body 1. The vessel body 1 is fixedly connected by flanges. This design ensures the rigidity of the overall structure, preventing deformation of the device 1 due to medium flow pressure, and also achieves reliable sealing to prevent medium leakage. At this time, the guide block 22 located between the inlet 3 and the outlet 4 plays a guiding role. Its end away from the device 1 contacts the side wall of the support plate 20, which can guide the medium to flow evenly to the heat exchange device 2 along the preset path, avoiding the formation of local static dead zones in the device 1 and reducing crystal accumulation caused by medium retention from the source. Finally, the medium that has completed heat exchange is discharged from the device 1 through the outlet 4 at a stable flow rate along the optimized flow path.

[0026] When in use, the heat exchanger, through the synergistic effect of the body 1 and the heat exchange device 2, achieves efficient heat exchange of high-viscosity, easily crystallizing media, while blocking the risk of blockage from the dimensions of flow path and structural stability.

[0027] First, the inlet 3 on the outer wall of the vessel 1 is connected to the outlet of the high-viscosity easily crystallizing medium container through a flange, and the outlet 4 on the outer wall of the vessel 1 is connected to the inlet of the high-viscosity easily crystallizing medium container after heat exchange through a flange. Then, the vessel 1 is started, and the high-viscosity easily crystallizing medium enters the interior of the vessel 1 through the inlet 3 on the outer wall of the vessel 1. The vessel 1 is fixedly connected by a flange, which not only ensures the rigidity of the overall structure and avoids deformation of the vessel 1 caused by the pressure of the medium flow, but also achieves reliable sealing to prevent medium leakage. At this time, the flow guide block 22 located between the inlet 3 and the outlet 4 plays a guiding role. Its end away from the vessel 1 is in contact with the side wall of the support plate 20, which can guide the medium to flow evenly to the heat exchange device 2 along the preset path, avoiding the formation of a local static dead zone in the vessel 1, and reducing the crystal accumulation caused by medium retention from the source.

[0028] The outer wall of the support plate 20 in the heat exchange device 2 is fixed to the inner wall of the body 1, and the inner wall is clamped to the U-shaped tube 21. The double fixing structure can resist the impact pressure generated by the flow of the medium, prevent the U-shaped tube 21 from shifting or deforming, and ensure the stability of the flow channel cross section. The U-shaped tube 21 adopts a spiral design, and the bend is an arc tube. The spiral structure can extend the flow path of the medium in the limited space of the body 1, greatly increase the contact area between the medium and the U-shaped tube 21, and at the same time make the medium form stable turbulence, improve the heat transfer coefficient, and efficiently complete the heat exchange with the heat exchange medium inside the U-shaped tube 21. The arc bend completely eliminates the right angle dead angle and avoids the medium from being stuck at the bend due to the sudden change in flow velocity. Finally, the medium that has completed the heat exchange is discharged from the body 1 through the outlet port 4 at a stable flow rate along the optimized flow path.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clog-resistant silicon carbide heat exchanger for high-viscosity, easily crystallizing media, comprising: The body (1) is characterized by: The vessel body (1) is fixedly connected by a flange. A heat exchange device (2) is fixedly connected to the inner wall of the vessel body (1). An inlet port (3) is fixedly connected to the outer wall of the vessel body (1). An outlet port (4) is fixedly connected to the outer wall of the vessel body (1). The heat exchange device (2) includes a support plate (20), and a U-shaped tube (21) is snapped onto the inner wall of the support plate (20).

2. The anti-clogging silicon carbide heat exchanger for high-viscosity, easily crystallizing media according to claim 1, characterized in that: The U-shaped pipe (21) is spiral-shaped, and the bend of the U-shaped pipe (21) is an arc-shaped pipe.

3. The anti-clogging silicon carbide heat exchanger for high-viscosity, easily crystallizing media according to claim 1, characterized in that: The outer wall of the support plate (20) is fixedly connected to the inner wall of the vessel body (1).

4. The anti-clogging silicon carbide heat exchanger for high-viscosity, easily crystallizing media according to claim 1, characterized in that: A drainage block (22) is fixedly connected to the inner wall of the device (1).

5. A clog-resistant silicon carbide heat exchanger for high-viscosity, easily crystallizing media according to claim 4, characterized in that: The drain block (22) is located between the inlet (3) and the outlet (4), and the end of the drain block (22) away from the body (1) is in contact with the side wall of the support plate (20).

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