A single-stalked stigmasterol anti-fouling multi-effect evaporation concentrator

Abstract

The utility model discloses a kind of anti-fouling multi-effect evaporative concentrators for single body stigmasterol, belong to evaporative concentration equipment technical field, including heating chamber and evaporative chamber, flow guide assembly is set in heating chamber, passive anti-fouling is enhanced material turbulent flow by the helical coil outside its shell and the internal thread pipe enhancer of outlet end, cleaning assembly is installed in evaporative chamber, cleaning assembly is driven by motor, first rotating lever is rotated by bevel gear drive mechanism, first rotating lever is driven piston and scraper rotation by connecting rod, spring in piston continuously pushes scraper, so that it is closely attached to evaporative chamber inner wall and initiatively mechanically scraped off. The utility model combines flow anti-fouling and mechanical descaling, effectively solve the problem that the heat transfer efficiency is reduced due to the fouling of evaporator inner wall in the prior art, with the effect of initiatively thorough descaling, guaranteeing the long-term efficient and stable operation of equipment.

Description

Technical Field

[0001] This utility model relates to the field of evaporation and concentration equipment technology, and in particular to a multi-effect evaporator and concentrator for monomeric stigmasterol that prevents scaling. Background Technology

[0002] Evaporators are key separation devices widely used in industries such as chemical, pharmaceutical, and food processing. Their core principle is to heat the solution, causing some of the solvent to vaporize and be removed, thereby increasing the concentration of the solute in the solution. In this process, high and continuous heat transfer efficiency is fundamental to ensuring stable equipment operation and product quality.

[0003] The situation becomes particularly complex when dealing with specific organic materials such as monomeric stigmasterol. These materials are often heat-sensitive, and their solubility in solvents changes significantly with temperature and concentration. During evaporation and concentration, as the solvent continues to vaporize, the supersaturation of the material solution increases rapidly. At the same time, the material layer near the heat exchange surface has the highest temperature, which easily leads to crystallization and precipitation of the solute on the heat exchange surface.

[0004] The precipitated crystals or thermally polymerized products gradually adhere to and deposit on the inner wall of the evaporator's heat exchange tubes and in the dead zones of the equipment, forming a hard scale layer. This scale layer has an extremely low thermal conductivity, which drastically increases the heat transfer resistance, leading to a significant decrease in evaporation efficiency and processing capacity. To maintain production, the temperature or pressure of the heating steam must be increased, which not only increases energy consumption but also exacerbates the thermal decomposition of materials, affecting product quality.

[0005] More seriously, when scale accumulates to a certain thickness, it reduces the effective cross-sectional area of ​​fluid channels, increases flow resistance, and can even completely block pipes, ultimately forcing the entire production line to shut down for time-consuming and labor-intensive chemical or mechanical cleaning. This frequent downtime for maintenance not only severely impacts the continuity and stability of production but also significantly increases the company's operating costs.

[0006] Therefore, this invention proposes an anti-scaling multi-effect evaporator for monomeric stigmasterol to address the shortcomings of existing technologies. Summary of the Invention

[0007] To overcome the above shortcomings, this utility model provides a multi-effect evaporator for treating monomeric stigmasterol, aiming to improve the problems in the prior art where evaporators easily form deposits on the inner wall of the equipment when processing materials that are prone to scaling, such as monomeric stigmasterol, resulting in reduced heat transfer efficiency, obstructed flow, and the need for frequent shutdowns for cleaning.

[0008] To achieve the above objectives, this utility model provides a multi-effect evaporator for monomeric stigmasterol with anti-scaling properties, comprising: a heating chamber, and an evaporation chamber fluidly connected to the heating chamber; as well as a flow guiding component and a cleaning component.

[0009] The flow guiding assembly is disposed inside the heating chamber, and the flow guiding assembly includes a shell, a spiral ring fixedly connected to the outer periphery of the shell, and an internally threaded pipe connected to the outlet end of the shell, the other end of the internally threaded pipe being connected to the evaporation chamber.

[0010] The cleaning assembly is installed inside the evaporation chamber. The cleaning assembly includes a motor rotatably connected to a second rotating rod via its output shaft, a second bevel gear fixedly connected to the end of the second rotating rod, and a first bevel gear meshing with the second bevel gear. The first bevel gear is fixedly connected to the upper end of the first rotating rod. A connecting rod is fixedly connected to the outer periphery of the first rotating rod. A piston is rotatably connected to the free end of the connecting rod, and a scraper is slidably connected to the piston.

[0011] Preferably, a spring is provided inside the piston, with one end of the spring abutting against the inner bottom wall of the piston and the other end of the spring abutting against the scraper, for providing the scraper with a continuous wall-adhering force.

[0012] Preferably, the cleaning assembly further includes a fixing plate, which is fixed to the upper part of the inner wall of the evaporation chamber by a long rod, and the motor and the first rotating rod are both mounted on the fixing plate to provide a stable mounting base for the cleaning assembly.

[0013] Preferably, the flow guiding assembly further includes a fixing cover, and a heating rod is detachably installed inside the housing, the heating rod being sealed and fixed inside the housing by the fixing cover.

[0014] Preferably, the outer casing is fixed to the middle of the heating chamber by multiple horizontal bars.

[0015] Preferably, it also includes a hot air pipe, one end of which is connected to the heating chamber and the other end of which is connected to the evaporation chamber, for transporting hot air to enhance heat transfer.

[0016] Preferably, it also includes an instrument installed on the outer wall of the evaporation chamber for monitoring internal process parameters.

[0017] Preferably, the axis of the first rotating rod is perpendicular to the axis of the second rotating rod to achieve efficient right-angle transmission.

[0018] This utility model has the following beneficial effects: 1. In this utility model, by setting up a cleaning assembly consisting of a motor, bevel gear, rotating rod and scraper, the problem of the difficulty in removing the deposits on the inner wall of the evaporator chamber in the prior art, the serious impact of hard scale on heat transfer efficiency and the need for shutdown maintenance once formed is solved. It achieves the effect of active and continuous mechanical scraping of the inner wall of the evaporator chamber, ensuring long-term efficient and stable operation of the equipment and reducing maintenance costs.

[0019] This invention solves the problem in the prior art where materials flow slowly and easily stagnate on the pipe wall during heating and conveying by setting a flow guiding component and incorporating a spiral ring and an internally threaded pipe on the flow guiding component. It achieves the technical effect of enhancing the turbulent flow of materials to scour the pipe wall, reducing dead zone stagnation and flow resistance, and inhibiting the formation of scale from the source. Attached Figure Description

[0020] Figure 1 This is a perspective view of a multi-effect evaporator for anti-scaling and concentrating monomeric stigmasterol proposed in this utility model; Figure 2 This is a schematic diagram of the cleaning component structure of a multi-effect evaporator for anti-scaling concentrator of monomeric stigmasterol proposed in this utility model; Figure 3 This is a schematic diagram of the motor structure of a multi-effect evaporator for anti-scaling and concentrating monomeric stigmasterol proposed in this utility model; Figure 4 This is a schematic diagram of the spring structure of a multi-effect evaporator for anti-scaling and concentrating monomeric stigmasterol proposed in this utility model; Figure 5 This is a schematic diagram of the flow guiding component structure of a multi-effect evaporator for anti-scaling and concentrating monomeric stigmasterol proposed in this utility model; Figure 6 This is a schematic diagram of the heating rod structure of a multi-effect evaporator for anti-scaling and concentrating monomeric stigmasterol proposed in this utility model.

[0021] Legend: 1. Heating chamber; 2. Evaporation chamber; 3. Flow guiding assembly; 301. Outer shell; 302. Spiral ring; 303. Fixing cover; 304. Internally threaded pipe; 305. Heating rod; 4. Instrument; 5. Hot air pipe; 6. Cleaning assembly; 601. Fixing plate; 602. Spring; 603. First conical tooth; 604. Second conical tooth; 605. First rotating rod; 606. Piston; 607. Second rotating rod; 608. Scraper; 609. Motor; 610. Connecting rod. Detailed Implementation

[0022] 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.

[0023] Reference Figures 1-6 This utility model provides a multi-effect evaporator for anti-scaling stigmasterol, which aims to solve the problem that existing evaporators easily form deposits on the inner wall of the equipment when processing materials that are prone to scaling, resulting in reduced heat transfer efficiency and obstructed flow.

[0024] The concentrator includes a heating chamber 1 and an evaporation chamber 2 in fluid communication with the heating chamber 1. The concentrator also includes a flow guiding assembly 3 disposed inside the heating chamber 1 and a cleaning assembly 6 installed inside the evaporation chamber 2. In addition, the concentrator also includes a hot gas pipe 5 connecting the heating chamber 1 and the evaporation chamber 2, and an instrument 4 installed on the outer wall of the evaporation chamber 2.

[0025] It also includes a flow guiding component 3 and a cleaning component 6. The flow guiding component 3 is disposed inside the heating chamber 1. The flow guiding component 3 includes a housing 301, which is fixed to the middle of the heating chamber 1 by multiple horizontal rods. A spiral ring 302 is fixedly connected to the outer periphery of the housing 301. A heating rod 305 is detachably installed inside the housing 301. The flow guiding component 3 also includes a fixing cover 303. The heating rod 305 is sealed and fixed inside the housing 301 by the fixing cover 303. An internally threaded pipe 304 is connected to the outlet end of the housing 301. The other end of the internally threaded pipe 304 is connected to the evaporation chamber 2. The cleaning assembly 6 is installed inside the evaporation chamber 2. The cleaning assembly 6 includes a motor 609, the output shaft of which is rotatably connected to a second rotating rod 607. The end of the second rotating rod 607 is fixedly connected to a second bevel tooth 604. The cleaning assembly 6 also includes a first rotating rod 605, the upper end of which is fixedly connected to a first bevel tooth 603. The first bevel tooth 603 meshes with the second bevel tooth 604. A connecting rod 610 is fixedly connected to the outer periphery of the first rotating rod 605. A piston 606 is rotatably connected to the free end of the connecting rod 610. A scraper 608 is slidably connected to the piston 606. A spring 602 is installed inside the piston 606. One end of the spring 602 abuts against the inner bottom wall of the piston 606, and the other end of the spring 602 abuts against the scraper 608.

[0026] To achieve continuous pressure on the scraper 608, the piston 606 has a cylindrical receiving cavity inside, and the spring 602, as a compression spring, is housed within this cavity. The scraper 608 has a guide rod that slides into the receiving cavity of the piston 606. This guide rod is inserted into the receiving cavity and abuts against one end of the spring 602, while the other end of the spring 602 abuts against the inner bottom wall of the receiving cavity. The elastic potential energy generated by the spring 602 being constantly compressed provides a continuous, stable, radially outward thrust to the scraper 608. This thrust enables the working edge of the scraper 608 to overcome material resistance and its own weight, and to always be in close contact with the inner wall surface of the evaporation chamber 2, thereby ensuring the thoroughness and continuity of the scraping effect.

[0027] To ensure stable and reliable installation of the entire cleaning assembly 6, the cleaning assembly 6 further includes a fixing plate 601. The fixing plate 601 has an overall structure of an annular plate with a central through hole. The fixing plate 601 is firmly fixed to the upper part of the inner wall of the evaporation chamber 2 by welding or bolting multiple long rods extending radially from its outer edge, forming a stable installation platform. The base of the motor 609 is fixed to the upper surface of the fixing plate 601 by bolts. The second rotating rod 607 is supported on the fixing plate 601 by a bearing bracket, while the first rotating rod 605 is rotatably inserted through one or more bearing seats and installed at the center of the fixing plate 601. This installation method ensures the precise relative positional relationship between the motor 609, the first rotating rod 605, and the second rotating rod 607, ensuring smooth meshing and efficient transmission between the first bevel gear 603 and the second bevel gear 604.

[0028] The housing 301 has a cylindrical cavity running through it along the axial direction. The heating rod 305 is a high thermal conductivity resistance heating element. The outer diameter of the heating rod 305 is tightly fitted with the inner diameter of the cylindrical cavity. The heating rod 305 is inserted into the cylindrical cavity. The fixing cover 303 is screwed onto the inspection end opening of the housing 301 by means of external thread engaging with the internal thread of the housing 301. The fixing cover 303 also integrates a sealing joint for the power supply cable to pass through, thereby axially positioning and radially sealing the heating rod 305 in the cavity. When replacement is required, the old heating rod 305 can be easily pulled out and the new one installed simply by unscrewing the fixing cover 303.

[0029] To stably fix the flow guiding assembly 3 in the heating chamber 1, the outer shell 301 is fixed at approximately the geometric center of the heating chamber 1 by three or more horizontally evenly distributed horizontal bars in a circumferential manner. One end of these horizontal bars is firmly connected to the outer wall of the outer shell 301 by welding, and the other end of the horizontal bars is fixed to the inner wall of the heating chamber 1 by welding or by flange connection, ensuring that the flow guiding assembly 3 will not shake under the impact of material flow.

[0030] In order to introduce the hot gas generated in the heating chamber 1 into the evaporation chamber 2 to improve the heat utilization rate, a hot gas pipe 5 is also included. One end of the hot gas pipe 5 is connected to the top gas phase space of the heating chamber 1 through a flange interface, and the other end of the hot gas pipe 5 is connected to the middle and lower liquid phase region of the evaporation chamber 2 through another flange interface. The hot gas can enter the evaporation chamber 2 through this channel to directly heat the material and accelerate the evaporation process.

[0031] To monitor the operating conditions inside the evaporation chamber 2 in real time, an instrument 4 is also included. The instrument 4 is installed on the outer wall of the evaporation chamber 2. The instrument 4 can be a combination of one or more pressure sensors, temperature sensors, or level gauges. By opening corresponding mounting screw holes in the wall of the evaporation chamber 2, the sensing probe of the instrument 4 is extended into the interior of the evaporation chamber 2 through a sealing element or connected to the internal environment, so that the operator can obtain and control key process parameters such as temperature, pressure, and level inside the evaporation chamber 2 in real time.

[0032] In another preferred embodiment, in order to achieve a change in transmission direction, the central axis of the first rotating rod 605 and the central axis of the second rotating rod 607 are configured to be perpendicular to each other in space but not intersecting. The first bevel tooth 603 and the second bevel tooth 604 are a pair of standard Gleason or equal-height bevel gears. The precise meshing of the first bevel tooth 603 and the second bevel tooth 604 can efficiently and quietly convert the horizontal rotational motion transmitted by the second rotating rod 607 into the vertical rotational motion of the first rotating rod 605, thereby driving the connecting rod 610 to rotate circumferentially.

[0033] Working principle: First, the material is heated inside the heating chamber 1. After being heated by the flow guide component 3, it moves to the evaporation chamber 2 through the internal threaded pipe 304 for processing. During the process, the hot air from the heating chamber 1 enters the evaporation chamber 2 through the hot air pipe 5 to speed up the processing. The instrument 4 on the outside of the evaporation chamber 2 confirms the information inside the evaporation chamber 2 to ensure stable operation. Then, the steam reaches the next step through the flow pipe at the top of the evaporation chamber 2, while the hot air pipe 5 cleans the inside of the evaporation chamber 2 in real time. When the material is heated inside the heating chamber 1, the outer shell 301 is first fixed in the middle of the heating chamber 1 by multiple horizontal rods. The heating rod 305 inside the outer shell 301 heats the material. The heating rod 305 can be removed and replaced from inside the outer shell 301 through the fixing cover 303. The spiral ring 302 on the outer periphery of the outer shell 301 can guide the flow of the material to generate rotation, reducing static solidification. After that, the heated material flows to the evaporation chamber 2 through the internal threaded tube 304. The threaded design of the internal threaded tube 304 gives the material flow process power, which ultimately enhances the turbulent flow of the material to flush the tube wall to prevent scaling, reduce dead corner retention and flow resistance, and thus improve evaporation efficiency. When cleaning the inside of the evaporation chamber 2, the motor 609 fixed on one side of the heating chamber 1 first drives the second rotating rod 607 to rotate. The rotation of the second rotating rod 607 drives the first bevel gear 603 and the second bevel gear 604 to rotate, which in turn drives the first rotating rod 605 at the bottom to rotate. The fixed plate 601 fixes the cleaning component 6 to the upper part of the evaporation chamber 2 through the long rod on the outside. Then, the rotation of the first rotating rod 605 drives the connecting rod 610 to rotate. The rotation of the connecting rod 610 drives the piston 606 and the scraper 608 to rotate around the first rotating rod 605 as the center, scraping off the deposits inside the evaporation chamber 2. The spring 602 inside the piston 606 will continuously exert force to push the scraper 608, so that the scraper 608 is always in contact with the inner wall of the evaporation chamber 2, ensuring the cleaning effect. In the end, the scale and residue in the pipe wall and the dead corner of the equipment are actively and thoroughly removed, reducing maintenance costs and ensuring the long-term high efficiency and stability of the equipment.

Claims

1. A multi-effect evaporator for monomeric stigmasterol with anti-scaling properties, comprising: Heating chamber (1); Evaporation chamber (2), which is in fluid communication with heating chamber (1); The feature is that it further includes a flow guiding component (3), which is disposed inside the heating chamber (1); The flow guiding component (3) includes a housing (301), a spiral ring (302) is fixedly connected to the outer periphery of the housing (301), and an internal threaded pipe (304) is connected to the outlet end of the housing (301). The other end of the internal threaded pipe (304) is connected to the evaporation chamber (2). It also includes a cleaning component (6), which is installed inside the evaporation chamber (2). The cleaning component (6) includes a motor (609), the output shaft of which is rotatably connected to a second rotating rod (607), and the end of the second rotating rod (607) is fixedly connected to a second bevel tooth (604). The cleaning assembly (6) further includes a first rotating rod (605), the upper end of which is fixedly connected to a first bevel tooth (603), the first bevel tooth (603) meshing with a second bevel tooth (604), and a connecting rod (610) fixedly connected to the outer periphery of the first rotating rod (605); a piston (606) is rotatably connected to the free end of the connecting rod (610), and a scraper (608) is slidably connected to the piston (606).

2. The anti-scaling multi-effect evaporator for monomeric stigmasterol according to claim 1, characterized in that, A spring (602) is provided inside the piston (606). One end of the spring (602) abuts against the inner bottom wall of the piston (606), and the other end of the spring (602) abuts against the scraper (608).

3. The anti-scaling multi-effect evaporator for monomeric stigmasterol according to claim 1, characterized in that, The cleaning assembly (6) also includes a fixing plate (601), which is fixed to the upper part of the inner wall of the evaporation chamber (2) by a long rod. The motor (609) and the first rotating rod (605) are both mounted on the fixing plate (601).

4. The anti-scaling multi-effect evaporator for monomeric stigmasterol according to claim 1, characterized in that, A heating rod (305) is detachably installed inside the housing (301). The flow guiding assembly (3) also includes a fixing cover (303), through which the heating rod (305) is sealed and fixed inside the housing (301).

5. The anti-scaling multi-effect evaporator for monomeric stigmasterol according to claim 1, characterized in that, The outer casing (301) is fixed in the middle of the heating chamber (1) by multiple horizontal bars.

6. The anti-scaling multi-effect evaporator for monomeric stigmasterol according to claim 1, characterized in that, It also includes a hot air pipe (5), one end of which is connected to the heating chamber (1) and the other end is connected to the evaporation chamber (2).

7. The anti-scaling multi-effect evaporator for monomeric stigmasterol according to claim 1, characterized in that, It also includes an instrument (4) which is mounted on the outer wall of the evaporation chamber (2).

8. The anti-scaling multi-effect evaporator for monomeric stigmasterol according to claim 1, characterized in that, The axis of the first rotating rod (605) is perpendicular to the axis of the second rotating rod (607).

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