A high viscosity material interface

Abstract

The utility model discloses a kind of high viscosity material interfaces, including one integrally-formed main body, inside the main body is equipped with a inner spiral channel for guiding fluid tangential inflow or outflow, mechanical seal groove is provided in the middle of main body, the left and right sides of main body are provided with the flange of clamp connection for connection;One end of inner spiral channel is out of main body and is fixedly connected with the one end of connecting pipe, the other end of connecting pipe is fixedly connected with clamp joint, annular groove is provided in the left side surface of main body, the other end of inner spiral channel is connected with annular groove. The utility model overcomes the deficiency of prior art, high viscosity material is evenly spread to equipment cylinder wall by centrifugal force using inner spiral channel, greatly reduce the impact on rotor;Integrated structure avoids installation error of split design, improves sealing accuracy and space utilization.

Description

Technical Field

[0001] This utility model relates to the field of equipment interface technology for fluid transportation, and specifically to an interface for high-viscosity materials. Background Technology

[0002] In the fields of petrochemicals, food processing, pharmaceuticals, and polymer production, scraped plate heat exchangers and thin-film evaporators are key equipment for processing high-viscosity materials. These devices use scrapers mounted on rotating rotors to force high-viscosity materials to be evenly coated onto the inner wall of the cylinder for heat exchange or evaporation. During this process, the material interface is a critical component connecting external piping to the equipment cylinder; its design directly affects the material flow pattern, equipment sealing performance, and operational stability.

[0003] Currently, existing material handling interfaces typically employ a split design, meaning the material handling interface body and the mechanical seal seat are two independent parts. This design increases the number of components, requiring separate positioning and fixing of the interface and mechanical seal seat during assembly. Due to these two independent installation processes, cumulative errors arise, making it difficult to ensure a high degree of coaxiality between the flow channel center of the material handling interface and the rotation center of the mechanical seal. This misalignment exacerbates uneven wear of the mechanical seal, significantly shortening its service life and increasing equipment maintenance costs and downtime risks. Furthermore, the split structure (interface + mechanical seal seat) requires more installation space and more complex connectors (such as multiple bolts and gaskets). This makes the equipment less compact in the axial or radial direction, a problem particularly pronounced in modern compact equipment designs with strict space constraints. Simultaneously, the increased mating surfaces between multiple parts also increase potential leakage points, reducing the overall reliability of the system. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a high-viscosity material interface, which overcomes the deficiencies of existing technologies. The design is reasonable, and the high-viscosity material is evenly spread to the equipment cylinder wall by centrifugal force through the internal spiral channel, which greatly reduces the impact on the rotor. The integrated structure avoids the installation errors of the split design and improves the sealing accuracy and space utilization.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A high-viscosity material interface includes an integrally molded body. The body has an internal spiral channel for guiding fluid tangentially inflow or outflow. A mechanical seal groove is provided in the middle of the body. Clamping flanges for connection are provided on both the left and right sides of the body. One end of the internal spiral channel extends out of the body and is fixedly connected to one end of a connecting pipe. The other end of the connecting pipe is fixedly connected to a clamping connector. An annular groove is provided on the left side of the body, and the other end of the internal spiral channel communicates with the annular groove.

[0006] Preferably, the connection between the inner spiral channel and the annular groove adopts a smooth transition.

[0007] Preferably, the helix angle of the inner spiral channel is 10° to 40°.

[0008] Preferably, the clamp connecting flange includes a flange portion that extends radially outward.

[0009] Preferably, the end face of the flange is a sealing end face, and the sealing end face is provided with a sealing ring groove for installing a sealing element.

[0010] This invention provides a high-viscosity material interface with the following advantages: By setting an internal spiral channel within the main body, the high-viscosity material is forced into the cylinder in a precise tangential direction before entering the equipment cylinder. The resulting centrifugal force causes the material to spread evenly and smoothly around the entire cylinder wall, forming a stable and uniformly thick liquid film. This effectively avoids material accumulation or excessive local thickness, significantly improving heat transfer efficiency and reaction uniformity. The one-piece molded main structure eliminates the cumulative errors caused by multiple assembly steps in split interfaces, ensuring a high degree of coaxiality between the rotation center of the mechanical seal and the center of the material flow channel. This greatly improves the installation accuracy and operational stability of the mechanical seal, effectively preventing early seal failure and material leakage due to uneven wear. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in this utility model or the prior art, the accompanying drawings used in the description of this utility model or the prior art will be briefly introduced below.

[0012] Figure 1 A schematic diagram of the structure of this utility model; Figure 2 A cross-sectional structural diagram of this utility model; Explanation of the labels in the diagram: 1. Main body; 2. Connector; 3. Clip connector; 11. Inner spiral channel; 12. Mechanical seal groove; 13. Clamp connection flange; 131. Flange part; 132. Sealing ring groove; 14. Annular groove. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0014] Example 1, as Figure 1-2As shown, a high-viscosity material interface includes an integrally formed body 1. The body 1 has an internal spiral channel 11 for guiding fluid to flow in or out tangentially. A mechanical seal groove 12 is provided in the middle of the body 1. Clamping flanges 13 for connection are provided on both the left and right sides of the body 1. One end of the internal spiral channel 11 extends out of the body 1 and is fixedly connected to one end of the connecting pipe 2. The other end of the connecting pipe 2 is fixedly connected to the clamping connector 3. An annular groove 14 is provided on the left side of the body 1. The other end of the internal spiral channel 11 is connected to the annular groove 14.

[0015] Working principle: In use, the clamp connector 3 can be connected to the external pipeline, and the clamp connector 3 can be tightened and sealed to the external pipeline with clamps. High-viscosity materials enter the connector 2 from the external pipeline and then flow into the inner spiral channel 11. The inner spiral channel 11 is a spatial curved flow channel with a specific spiral angle. The material is forced to change its flow direction in this channel, gradually changing from axial flow to tangential flow. When the material flows out from the end of the inner spiral channel 11, that is, the connection with the annular groove 14, its flow direction is highly consistent with the circumferential tangential direction of the inner wall of the equipment cylinder. With this tangential velocity, the material gains a huge centrifugal force the moment it enters the cylinder and is thrown evenly to the entire cylinder wall, quickly forming a thin and uniform liquid film. This process minimizes the direct impact of the material on the high-speed rotating rotor and scraper inside the cylinder, significantly reducing equipment vibration and noise; at the same time, it effectively ensures the uniform distribution of the material, avoids local accumulation or splashing, thereby improving heat transfer efficiency and mixing effect.

[0016] Furthermore, since the main body 1 is a one-piece molded structure, its internal spiral channel 11 and mechanical seal groove 12 are machined in one piece on the same datum. This fundamentally ensures that the installation center of the mechanical seal and the center of the material flow channel have extremely high coaxiality. The stationary ring of the mechanical seal can be directly and precisely installed in the mechanical seal groove 12, while the rotating ring rotates with the equipment rotor. Both operate with extremely high alignment, achieving stable and long-life end-face sealing, effectively preventing material leakage from the shaft.

[0017] In Example 2, as a further preferred embodiment of Example 1, the connection between the inner spiral channel 11 and the annular groove 14 adopts a smooth transition. By designing a smooth transition at the connection between the inner spiral channel 11 and the annular groove 14, the fluid streamlines can smoothly and seamlessly change direction and expand, transforming this abrupt, impact-induced energy loss into a gradual, minimal viscous friction loss. Furthermore, the smooth transition allows the fluid with good tangential velocity exiting the inner spiral channel to smoothly transfer kinetic energy to the annular groove 14 and ultimately enter the equipment cylinder. This maximizes the preservation of the fluid's tangential momentum, ensuring the full utilization of the centrifugal force effect, allowing the material to spread more evenly and stably into a thin layer, directly improving the heat transfer efficiency and processing capacity of the scraped heat exchanger or thin-film evaporator. It also allows the material to be smoothly pushed out, significantly reducing the risk of interface blockage. Simultaneously, when switching products or performing cleaning, the smooth, continuous surface allows the cleaning fluid to thoroughly rinse all contact surfaces, leaving no dead corners.

[0018] In Example 3, as a further preferred embodiment of Example 1, the helical angle of the inner helical channel 11 is between 10° and 40°. For materials with extremely high viscosity (such as polymer melts and asphalt), a smaller angle within the range can be selected to provide stronger axial propulsion force, prevent clogging, and still ensure basic tangential spreading. For materials with medium or low viscosity (such as concentrated syrups and oils), a larger angle within the range can be selected to generate stronger centrifugal force, ensuring rapid and uniform spreading.

[0019] In Example 4, as a further preferred embodiment of Example 1, the clamp connecting flange 13 includes a radially outwardly extending flange portion 131. During installation of the main body 1, simply align the two mating flange portions 131, slip the clamp on, and connect within seconds by turning the cam handle of the clamp or tightening the bolts. This significantly improves the speed of starting, cleaning, maintaining, and assembling equipment (such as scraper heat exchangers and thin-film evaporators), and significantly reduces downtime. Furthermore, this uniform radial clamping force ensures that the sealing ring installed on the flange end face is uniformly compressed, forming a highly reliable static seal on the end face. This effectively eliminates the risk of sealing surface deformation and leakage caused by uneven bolt preload.

[0020] In Example 5, as a further preferred embodiment of Example 4, the end face of the flange 131 is a sealing end face, and a sealing ring groove 132 for installing a sealing element is provided on the sealing end face. Thus, when the sealing end faces of the two mating interfaces are tightly pressed together by the clamp, the elastic sealing element (such as an O-ring) pre-placed in the sealing ring groove 132 is compressed and fills all the microscopic unevenness and gaps between the end face and the sealing groove. This compression, constrained within the sealing groove, can generate a continuous and uniform sealing specific pressure, forming a 360° annular sealing band without dead angles. It can effectively block the leakage path of high-viscosity materials, fundamentally solving the leakage problems that may exist in traditional planar compression or threaded seals. Furthermore, compared to relying solely on the flange bolt force to compress the gasket, the sealing ring of this invention requires only a small amount of compression within the sealing ring groove 132 to achieve effective sealing. This means that the clamp does not need to apply a huge locking force to achieve excellent sealing performance. This reduces the requirements for clamp strength and operator strength, making the connection process easier and faster, while avoiding the risk of component deformation and damage due to over-tightening.

[0021] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A high-viscosity material interface, characterized in that: The system includes an integrally formed main body (1), with an internal spiral channel (11) inside the main body (1) for guiding fluid tangentially into or out of the body, a mechanical seal groove (12) in the middle of the main body (1), and clamp connecting flanges (13) for connection on both the left and right sides of the main body (1); one end of the internal spiral channel (11) extends out of the main body (1) and is fixedly connected to one end of a connecting pipe (2), and the other end of the connecting pipe (2) is fixedly connected to a clamp connector (3); an annular groove (14) is opened on the left side of the main body (1), and the other end of the internal spiral channel (11) is connected to the annular groove (14).

2. The interface for high-viscosity materials according to claim 1, characterized in that: The connection between the inner spiral channel (11) and the annular groove (14) adopts a smooth transition.

3. The interface for high-viscosity materials according to claim 1, characterized in that: The spiral angle of the inner spiral channel (11) is 10° to 40°.

4. The interface for high-viscosity materials according to claim 1, characterized in that: The clamp connecting flange (13) includes a radially outwardly extending flange portion (131).

5. The interface for high-viscosity materials according to claim 4, characterized in that: The end face of the flange (131) is a sealing end face, and a sealing ring groove (132) for installing a sealing element is provided on the sealing end face.

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