Multi-effect heat acceleration short-time evaporator

Abstract

The invention relates to the technical field of evaporators, and discloses a multi-effect thermal acceleration short-time evaporator which comprises a rack, a gas-liquid separator, a first tube bundle and a first pipeline, the gas-liquid separator and the first tube bundle are connected with the rack, the first pipeline is connected between the gas-liquid separator and the first tube bundle, the top of the first tube bundle communicates with a third pipeline, and the third pipeline is communicated with a second tube bundle. The other end of the third pipeline communicates with a preheater, and the bottom of the first pipe bundle is connected with a second pipe bundle. According to the multi-effect heat acceleration short-time evaporator, efficient utilization of heat, shortening of evaporation time and stability and reliability of the operation process are achieved through the synergistic effect of all parts of the whole structure, the comprehensive treatment performance of the evaporator is improved, the stirring rod is driven to rotate in the preheater through gear transmission, materials are heated more evenly in the preheating process, and the heat efficiency of the evaporator is improved. The phenomenon that the evaporation effect is affected by insufficient local heating is avoided, entering materials can be preheated, the subsequent heating time in the pipe bundle is shortened, and the evaporation process is accelerated.

Description

Technical Field

[0001] This invention relates to the field of evaporator technology, specifically to a multi-effect thermally accelerated short-time evaporator. Background Technology

[0002] Multi-effect thermally accelerated short-time evaporators belong to the field of evaporation equipment technology. They are mainly used in industries such as chemical, food, and pharmaceutical to evaporate and concentrate liquid materials. Their core is to achieve high-efficiency evaporation by optimizing the heat transfer path and improving equipment operating efficiency.

[0003] In existing technologies, the thermal energy utilization structure of similar evaporators is usually relatively simple, lacking an effective multi-effect heating path design, resulting in disordered heat transfer within the equipment and low thermal utilization efficiency. The preheating function is often imperfect, failing to preheat the incoming materials, causing the materials to require a longer heating time in the subsequent tube bundles, thus delaying the evaporation process. The condenser tubes are mostly fixed, with limited contact with the surrounding medium, resulting in low condensation efficiency. At the same time, during the preheating process, the materials are prone to localized underheating due to insufficient stirring, affecting the overall evaporation effect. In addition, the equipment lacks stability during operation, and the power output is difficult to flexibly adjust according to actual needs, failing to adapt to the processing requirements of different materials, and the overall processing performance needs to be improved. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a multi-effect thermally accelerated short-time evaporator. This addresses the problems of fixed condenser tubes, limited contact with the surrounding medium, and low condensation efficiency; insufficient stirring during preheating leading to localized underheating and affecting overall evaporation; and insufficient stability during operation, making it difficult to flexibly adjust power output according to actual needs, thus failing to adapt to the processing requirements of different materials and requiring improvement in overall processing performance.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-effect thermally accelerated short-time evaporator, comprising: a frame, a gas-liquid separator, a first tube bundle, and a first pipe. The gas-liquid separator and the first tube bundle are respectively connected to the frame, and the first pipe connects the gas-liquid separator and the first tube bundle. A third pipe is connected to the top of the first tube bundle, and the other end of the third pipe is connected to a preheater. After the material is initially heated and evaporated in the first tube bundle, the generated steam and a mixture of partially unevaporated material flow through the third pipe into the preheater. The heat from this mixture is used to preheat the material to be processed subsequently, improving energy utilization and reducing the energy consumption required for subsequent heating.

[0006] A second tube bundle is connected to the bottom of the first tube bundle, and a second pipe connects the second tube bundle to the first pipe. Material that is not fully evaporated in the first tube bundle flows into the second tube bundle through the second pipe for further evaporation and concentration. Simultaneously, the first pipe transports the steam generated by the evaporation in the first tube bundle to a gas-liquid separator for separation. The material in the second tube bundle can also circulate with the steam and other substances in the first pipe through the second pipe, improving evaporation efficiency. The preheater is connected to the second tube bundle via a first fitting, allowing preheated material to flow into the second tube bundle for further evaporation using the heat from the second tube bundle, forming a thermal cycle and fully utilizing thermal energy. A condenser tube is connected to the outside of the second tube bundle via a second fitting, and a transmission mechanism is installed on the outside of the condenser tube. The transmission mechanism includes a servo motor. The output end of the servo motor is connected to a first gear, which is externally meshed with a second gear. The second gear is fitted onto the outside of the condenser tube. When the servo motor starts, it drives the first gear to rotate, which in turn drives the second gear to rotate, causing the condenser tube to rotate accordingly. This accelerates the heat exchange rate between the coolant inside the condenser tube and the vapor outside, improving condensation efficiency. A bearing is fitted onto the outside of the condenser tube, and a limiting component is connected to the outside of the bearing. This limiting component is connected to the frame and, through the bearing, supports and limits the condenser tube, ensuring its stability during rotation and preventing it from shaking or shifting, which would affect the condensation effect.

[0007] The top of the condenser is connected to a fourth pipe. The inner cavity of the fourth pipe is connected to the second pipe fitting through a bearing. The fourth pipe is used to discharge the condensed liquid in the condenser. At the same time, the connection with the second pipe fitting through the bearing allows the fourth pipe to output condensate relatively stably when the condenser rotates, without affecting the rotation of the condenser and the condensation operation.

[0008] A third gear is sleeved on the outside of the fourth pipe, and a fourth gear is meshed with the outside of the third gear. A stirring rod is connected to the top of the fourth gear, and the stirring rod is located inside the preheater. When the condenser tube rotates, it drives the fourth pipe and the third gear to rotate. Through gear meshing, the fourth gear drives the stirring rod to rotate inside the preheater, stirring the material inside the preheater, making the material heated more evenly, further improving the preheating effect, and preventing local overheating or sedimentation of the material inside the preheater.

[0009] Preferably, the preheater is externally connected to a support frame, which is bolted to the first tube bundle. The support frame provides support for the preheater, ensuring its stable position. Simultaneously, the bolted connection to the first tube bundle guarantees the overall structural stability of the equipment, preventing performance issues caused by component movement during operation. The first tube bundle and the gas-liquid separator are mounted inside the frame via flanges. This flange connection facilitates the installation and disassembly of the first tube bundle and the gas-liquid separator, simplifying equipment maintenance and repair. Furthermore, its internal mounting within the frame results in a compact structure and space-saving design.

[0010] Preferably, the second tube bundle is externally connected to a pressure valve, which can be used to regulate the air pressure inside the second tube bundle to ensure that the evaporation process takes place under a suitable pressure environment, thereby guaranteeing the evaporation effect of the material and the safety of equipment operation. A pipe is installed at the bottom of the second tube bundle, and a control valve is installed on the outside of the pipe. The bottom pipe is used to discharge the material that has reached a predetermined concentration after evaporation and concentration within the second tube bundle. The control valve can precisely control the discharge amount and timing of the material, facilitating production operation and control.

[0011] Preferably, pneumatic valves are installed on the exterior of the third, first, and second pipes. These pneumatic valves can quickly and accurately control the flow of materials and steam within the pipes, enabling intelligent operation of the equipment through automated control, thereby improving production efficiency and control precision. A connecting pipe fitting is connected to the top of the first pipe bundle. This connecting pipe fitting can be used to connect to other equipment or pipelines, expanding the equipment's functionality. For example, excess steam generated within the first pipe bundle can be discharged to other systems requiring heat energy, achieving comprehensive energy utilization.

[0012] Preferably, a gas collecting pipe is provided at the top of the first tube bundle, and a discharge pipe is connected to the outside of the gas collecting pipe. An electric valve is provided on the outside of the discharge pipe. The gas collecting pipe is used to collect the steam generated by evaporation in the first tube bundle, and the electric valve can precisely control the discharge volume and direction of the steam, which facilitates the rational distribution and utilization of steam according to production needs.

[0013] Preferably, the gas-liquid separator is externally connected to a liquid storage tank, which is used to store the liquid material separated by the gas-liquid separator, facilitating further processing or storage of the material. An electric butterfly valve is installed externally on the inlet pipe of the liquid storage tank. The electric butterfly valve can flexibly control the liquid inlet volume of the storage tank, achieving precise control of the material storage process, and also facilitates connection with an automated control system, improving the level of production automation.

[0014] Preferably, a sealed bearing connects the stirring rod to the preheater. This sealed bearing ensures that material inside the preheater does not leak when the stirring rod rotates, maintaining a stable working environment within the preheater, reducing material loss, and improving the safety and reliability of the equipment. The top of the stirring rod is connected to the top of the preheater's inner cavity via a seated bearing. The seated bearing provides stable support for the stirring rod, ensuring its stability during rotation, reducing shaking and vibration, extending the service life of the stirring rod and related components, and guaranteeing the stirring effect.

[0015] Preferably, the condenser includes an inner tube and an outer tube sleeved outside the inner tube. The top and bottom of the outer tube are respectively provided with a coolant inlet and a coolant outlet. The coolant flows in from the inlet at the top of the outer tube, flows through the gap between the inner and outer tubes, absorbs heat from the steam in the inner tube, and then flows out from the outlet at the bottom. In this way, the steam is condensed, and the coolant circulates continuously, enabling efficient and continuous condensation.

[0016] Preferably, the limiting component includes an annular seat fitted over the bearing, with multiple connecting arms evenly distributed around its outer circumference. The other end of each connecting arm is fixedly connected to the frame via bolts. The annular seat, fitted over the bearing, protects and positions it. The evenly distributed connecting arms provide stable support to the annular seat from multiple directions. The bolts secure the limiting component to the frame, ensuring a firm connection and thus stably limiting the position of the condenser tube.

[0017] Preferably, a rotary seal is provided at the connection between the fourth pipe and the second pipe fitting. The rotary seal includes a stationary ring fixedly sleeved on the outside of the second pipe fitting and a rotating ring fixedly sleeved on the outside of the fourth pipe. A sealing gasket is provided between the stationary ring and the rotating ring. The rotary seal ensures that no leakage occurs at the connection between the fourth pipe and the second pipe fitting when the fourth pipe rotates with the condenser tube. The stationary ring, the rotating ring, and the sealing gasket cooperate to effectively prevent material or steam leakage, maintain the stability of the internal working environment of the equipment, and improve the reliability of equipment operation. The transmission mechanism also includes a protective cover installed outside the servo motor. The protective cover prevents external objects from colliding with the servo motor and avoids dust, water vapor, and other impurities from entering the servo motor, affecting its normal operation and extending its service life. A heat dissipation hole is provided on one side of the protective cover to dissipate the heat generated by the servo motor during operation, preventing the servo motor from being damaged by overheating and ensuring its stable operation. A mounting plate is provided at the bottom of the protective cover, and the mounting plate is fixedly connected to the frame by bolts. The mounting plate is fixed to the frame with bolts, ensuring that the protective cover and the internal servo motor are securely installed and will not shift or shake during equipment operation.

[0018] Compared with the prior art, the present invention provides a multi-effect thermally accelerated short-time evaporator, which has the following beneficial effects: This multi-effect thermally accelerated short-time evaporator, by setting up a connection structure between the first and second tube bundles and combining the connection between the second and first pipes, can form a multi-effect heating path, so that heat can be transferred in an orderly manner between the tube bundles, thereby improving heat utilization efficiency; the preheater is connected to the first tube bundle through the third pipe and to the second tube bundle through the first fitting, which can preheat the incoming material, shorten the subsequent heating time in the tube bundles, and accelerate the evaporation process.

[0019] This multi-effect thermally accelerated short-time evaporator features a transmission mechanism external to the condenser tubes. A servo motor drives a gear set to rotate the condenser tubes, enhancing the contact between the condenser tubes and the surrounding medium and improving condensation efficiency. It also drives a stirring rod to rotate inside the preheater via gear transmission, ensuring more uniform heating of the material during preheating and preventing insufficient local heating from affecting the evaporation effect.

[0020] This multi-effect thermally accelerated short-time evaporator, with its matching limit components and bearings, ensures the stability of the condenser tube and stirring rod operation. The servo motor provides stable power output, and the operating speed can be adjusted according to actual needs to adapt to the processing requirements of different materials. Through the synergistic effect of its components, the overall structure achieves efficient heat utilization, shortened evaporation time, and stable and reliable operation, thus improving the overall processing performance of the evaporator. Attached Figure Description

[0021] Figure 1 This is a front view of the present invention; Figure 2 This is a planar schematic diagram of the present invention; Figure 3 This is a schematic diagram of the external structure of the first tube bundle of the present invention; Figure 4 This is a schematic diagram of the first tube bundle of the present invention; Figure 5 This is an external schematic diagram of the transmission mechanism of the present invention.

[0022] In the diagram: 1. Frame; 11. Connecting pipe; 12. Discharge pipe; 2. Gas-liquid separator; 21. First pipe; 22. Storage tank; 3. First tube bundle; 31. Second tube bundle; 32. Second pipe; 33. Third pipe; 34. Preheater; 35. Pressure valve; 36. Condenser; 4. Transmission mechanism; 41. Servo motor; 42. First gear; 43. Second gear; 44. Limiting element; 45. Third gear; 46. Fourth pipe; 47. Fourth gear; 48. Sealed bearing; 49. Stirring rod. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] This invention provides a technical solution; please refer to [link / reference]. Figure 1 and Figure 2 The multi-effect thermally accelerated short-time evaporator includes: a frame 1, a gas-liquid separator 2, a first tube bundle 3, and a first pipe 21. The gas-liquid separator 2 and the first tube bundle 3 are respectively connected to the frame 1. The first pipe 21 connects the gas-liquid separator 2 and the first tube bundle 3. The top of the first tube bundle 3 is connected to a third pipe 33, and the other end of the third pipe 33 is connected to a preheater 34. After the material is initially heated and evaporated in the first tube bundle 3, the generated steam and part of the incompletely evaporated material mixture flow through the third pipe 33 into the preheater 34. The heat of this mixture flow is used to preheat the subsequent materials to be processed, improving energy utilization and reducing the energy consumption required for subsequent heating.

[0025] The subsequent material quickly approaches the evaporation temperature, shortening the heating time within the first tube bundle 3, thereby increasing the material throughput per unit time and improving the overall production efficiency of the equipment. A second tube bundle 31 is connected to the bottom of the first tube bundle 3, and a second pipe 32 connects the second tube bundle 31 to the first pipe 21.

[0026] Please see Figure 3 and Figure 4 Material that is not completely evaporated in the first tube bundle 3 will flow into the second tube bundle 31 through the second pipe 32 to continue evaporation and concentration. At the same time, the first pipe 21 can transport the steam generated by the evaporation of the first tube bundle 3 to the gas-liquid separator 2 for separation. The material in the second tube bundle 31 can also form a cycle with the steam and other substances in the first pipe 21 through the second pipe 32, thereby improving the evaporation efficiency.

[0027] During the circulation process, the steam comes into full contact with the incompletely evaporated material, which not only further utilizes the waste heat of the steam, but also allows the material to continuously renew its surface during flow, increasing the evaporation rate while ensuring the uniformity of the material concentration. The exterior of the preheater 34 is connected to the second tube bundle 31 through the first pipe, which allows the preheated material in the preheater 34 to flow into the second tube bundle 31, where it is further evaporated using the heat of the second tube bundle 31, forming a thermal cycle and making full use of thermal energy.

[0028] Please see Figure 5Since the preheated material temperature is close to the operating temperature of the second tube bundle 31, no additional heat is needed to raise the temperature after entering, significantly reducing heat loss. This allows the second tube bundle 31 to focus more on increasing the material concentration, making the evaporation process more efficient. A condenser tube 36 is connected to the outside of the second tube bundle 31 via a second fitting. A transmission mechanism 4 is installed on the outside of the condenser tube 36. The transmission mechanism 4 includes a servo motor 41, the output end of which is connected to a first gear 42. A second gear 43 is meshed with the outside of the first gear 42 and fitted onto the outside of the condenser tube 36. When the servo motor 41 starts, it drives the first gear 42 to rotate, which in turn drives the second gear 43 to rotate, causing the condenser tube 36 to rotate accordingly. This accelerates the heat exchange rate between the coolant inside the condenser tube 36 and the steam outside, improving condensation efficiency.

[0029] The rotation of the condenser tube 36 can generate a certain centrifugal force and disturbance in the coolant inside the tube, increasing the contact area between the coolant and the inner wall of the tube. At the same time, it allows the vapor outside the tube to more evenly coat the condenser tube 36, avoiding local dead zones of condensation and further improving the adequacy of heat exchange.

[0030] A bearing is fitted onto the outside of the condenser tube 36, and a limiting member 44 is connected to the outside of the bearing. The limiting member 44 is connected to the frame 1. The limiting member 44, through the bearing, supports and limits the condenser tube 36, ensuring the stability of the condenser tube 36 during rotation and preventing it from shaking or shifting, which would affect the condensation effect. The bearing significantly reduces the frictional resistance of the condenser tube 36 during rotation, making the rotation smoother, reducing the energy consumption of the servo motor 41, and preventing the heat generated by friction from affecting the condensation effect of the condenser tube 36.

[0031] The top of the condenser tube 36 is connected to a fourth pipe 46. The inner cavity of the fourth pipe 46 is connected to the second pipe fitting through a bearing. The fourth pipe 46 is used to discharge the condensed liquid in the condenser tube 36. At the same time, it is connected to the second pipe fitting through a bearing so that when the condenser tube 36 rotates, the fourth pipe 46 can output condensate relatively stably without affecting the rotation of the condenser tube 36 and the condensation work.

[0032] The low-friction characteristics of the bearing ensure smooth relative movement between the fourth pipe 46 and the second fitting, avoiding fluctuations in condensate discharge caused by rotational vibration and ensuring stable condensate collection. A third gear 45 is sleeved on the outside of the fourth pipe 46, and a fourth gear 47 is meshed with the outside of the third gear 45. A stirring rod 49 is connected to the top of the fourth gear 47, and the stirring rod 49 is located inside the preheater 34. When the condenser tube 36 rotates, it drives the fourth pipe 46 and the third gear 45 to rotate. Through gear meshing, the fourth gear 47 drives the stirring rod 49 to rotate within the preheater 34, stirring the material inside the preheater 34. This makes the material heated more evenly, further improving the preheating effect and preventing localized overheating or sedimentation of the material within the preheater 34.

[0033] The rotation speed of the stirring rod 49 is linked with the rotation of the condenser tube 36, which can automatically adjust the stirring intensity according to the amount of steam. When the material flow rate is large, the stirring is enhanced to ensure that all materials can fully contact the heat source and improve the uniformity and efficiency of preheating.

[0034] The preheater 34 is externally connected to a support frame, which is bolted to the first tube bundle 3. The support frame provides support for the preheater 34, ensuring its stable position. Simultaneously, the bolted connection to the first tube bundle 3 guarantees the stability of the overall equipment structure, preventing performance issues caused by component movement during operation. The bolted connection allows for adjustment of the preheater 34's installation angle according to the preheating requirements of different materials, enabling materials to flow more smoothly into the second tube bundle 31 under gravity, reducing stagnation. The first tube bundle 3 and the gas-liquid separator 2 are mounted inside the frame 1 via flanges.

[0035] The flange connection facilitates the installation and disassembly of the first tube bundle 3 and the gas-liquid separator 2, simplifying equipment maintenance and repair. Its internal placement within the frame 1 contributes to a compact structure and saves space. High-temperature resistant gaskets at the flange connections effectively prevent steam leakage, ensuring efficient heat utilization and enhancing the overall sealing of the equipment, making it suitable for high-pressure operating environments. The second tube bundle 31 is externally connected to a pressure valve 35, which regulates the pressure within the second tube bundle 31 to ensure the evaporation process occurs under appropriate pressure, guaranteeing both the evaporation effect and the safety of equipment operation.

[0036] By precisely adjusting the gas pressure, the boiling point of the material can be changed, allowing high-boiling-point materials to evaporate at lower temperatures, thus expanding the equipment's applicability to different types of materials and preventing equipment damage due to excessive pressure. A pipe is installed at the bottom of the second tube bundle 31, and a control valve is installed on the outside of the pipe.

[0037] The bottom pipe is used to discharge the material in the second tube bundle 31 after evaporation and concentration to a predetermined concentration. The control valve can precisely control the discharge volume and timing of the material, facilitating production operation and control. The control valve adopts a high-precision electric regulating valve, which can be linked with the concentration monitoring equipment to automatically adjust the opening and closing degree according to the real-time concentration of the material, ensuring that the concentration of the discharged material is stable within the preset range and improving the consistency of product quality. Pneumatic valves are installed on the outside of the third pipe 33, the first pipe 21, and the second pipe 32. The pneumatic valves can quickly and accurately control the flow of material and steam in the pipes. Through automated control, intelligent operation of the equipment can be achieved, improving production efficiency and control accuracy. The pneumatic valves have a short response time, completing the opening and closing action within milliseconds, effectively reducing the flow fluctuation of material or steam in the pipes, ensuring the stability of the material and steam volume in each tube bundle, and maintaining the continuity of the evaporation process. The top of the first tube bundle 3 is connected to a connecting pipe fitting 11.

[0038] The connecting pipe fitting 11 can be used to connect other equipment or pipelines, expanding the functionality of the equipment. For example, it can export excess steam generated in the first tube bundle 3 to other systems that require heat energy, achieving comprehensive energy utilization. Pressure and temperature sensors can be installed on the connecting pipe fitting 11 to monitor the steam parameters in the first tube bundle 3 in real time, providing data support for the automatic adjustment of the equipment and ensuring the rationality of steam utilization.

[0039] The condenser tube 36 includes an inner tube and an outer tube sleeved around the inner tube. The top and bottom of the outer tube are respectively equipped with a coolant inlet and a coolant outlet. Coolant flows in from the inlet at the top of the outer tube, flows through the gap between the inner and outer tubes, absorbs heat from the steam in the inner tube, and then flows out from the outlet at the bottom. This process condenses the steam, and the coolant circulates continuously and efficiently. The gap between the inner and outer tubes is optimized to ensure sufficient flow space for the coolant while also creating turbulence, enhancing heat exchange efficiency with the outer wall of the inner tube, allowing the steam to liquefy rapidly in a short time and increasing the condensation rate.

[0040] The limiting component 44 includes an annular seat fitted around the bearing. Multiple connecting arms are evenly distributed around the outer circumference of the annular seat, and the other end of each connecting arm is fixedly connected to the frame 1 by bolts. The annular seat, fitted around the bearing, protects and positions it. The evenly distributed connecting arms provide stable support to the annular seat from multiple directions. The bolts secure the limiting component 44 to the frame 1, ensuring a firm connection and thus stably limiting the condenser tube 36. The connecting arms are made of high-strength alloy material, possessing excellent fatigue resistance and capable of withstanding the radial and axial forces generated during the rotation of the condenser tube 36, preventing deformation after long-term use and ensuring the stability of the limiting effect.

[0041] A rotary seal is provided at the connection between the fourth pipe 46 and the second pipe fitting. The rotary seal includes a stationary ring fixedly sleeved on the outside of the second pipe fitting and a rotating ring fixedly sleeved on the outside of the fourth pipe 46. A sealing gasket is provided between the stationary ring and the rotating ring. The rotary seal can ensure that there will be no leakage at the connection between the fourth pipe 46 and the second pipe fitting when the fourth pipe 46 rotates with the condenser pipe 36. The stationary ring, the rotating ring and the sealing gasket cooperate with each other to effectively prevent material or steam leakage, maintain the stability of the internal working environment of the equipment and improve the reliability of equipment operation.

[0042] The sealing gasket is made of a composite material that is resistant to high and low temperatures and wear, which can adapt to temperature changes and relative movements during equipment operation, significantly extending the service life of the seal and reducing maintenance frequency. The transmission mechanism 4 also includes a protective cover installed outside the servo motor 41. The protective cover can prevent external objects from colliding with the servo motor 41 and prevent dust, moisture and other impurities from entering the servo motor 41, affecting its normal operation and extending the service life of the servo motor 41.

[0043] The protective cover is made of heat-insulating material, which can effectively block the high temperature generated during equipment operation, prevent the servo motor 41 from overheating due to excessive ambient temperature, and ensure its continuous and stable operation. One side of the protective cover is equipped with heat dissipation holes to dissipate the heat generated by the servo motor 41 during operation, preventing damage to the servo motor 41 due to overheating and ensuring its stable operation.

[0044] The ventilation holes are designed with dust filters to prevent dust from entering while dissipating heat. The holes are oriented away from the heat source to avoid drawing in hot air and improve heat dissipation efficiency. A mounting plate is installed at the bottom of the protective cover, and the mounting plate is fixedly connected to the frame 1 with bolts. This secure mounting of the protective cover and the internal servo motor 41 ensures a firm installation, preventing displacement or shaking during equipment operation. The connection surface between the mounting plate and the frame 1 is precision-machined to ensure flatness, reduce vibration transmission during servo motor 41 operation, and lower the overall noise level of the equipment.

[0045] When the multi-effect thermally accelerated short-time evaporator is working, the frame 1 first provides support for the overall structure. The gas-liquid separator 2 and the first tube bundle 3 are set inside the frame 1 and connected to the frame 1 through flanges. The initial material can enter the preheater 34 through relevant pipelines. The preheater 34 is bolted to the first tube bundle 3 through an external support frame to ensure stability. At this time, the transmission mechanism 4 is activated, and the output end of the servo motor 41 drives the first gear 42 to rotate. The first gear 42 meshes with the second gear 43. Since the second gear 43 is sleeved on the outside of the condenser tube 36, and the condenser tube 36 is connected to the limiting member 44 through the bearing, and the limiting member 44 is bolted to the frame 1 through the connecting arm on the outer periphery of the ring seat, the condenser tube 36 rotates stably with the second gear 43. At the same time, the fourth pipe 46 at the top of the condenser tube 36 is connected to the second pipe through the bearing, and the third gear 45 on its outside meshes with the fourth gear 47, driving the stirring rod 49 at the top of the fourth gear 47 to rotate in the inner cavity of the preheater 34. The sealing bearing 48 between the stirring rod 49 and the preheater 34 and the seated bearing at the top ensure that the stirring process is sealed and stable, thereby accelerating the preheating efficiency of the material in the preheater 34. The preheated material enters the first tube bundle 3 through the third pipe 33. A pneumatic valve outside the third pipe 33 controls the material flow rate. After preliminary heating and evaporation, the material in the first tube bundle 3 enters the second tube bundle 31 at the bottom. A pressure valve 35 outside the second tube bundle 31 adjusts the internal pressure to ensure evaporation conditions. Simultaneously, the second tube bundle 31 is connected to the preheater 34 through the first fitting, allowing some heat to be transferred to the preheater 34 for thermal energy utilization. The processed material in the second tube bundle 31 is transported to the first pipe 21 through the second pipe 32. A pneumatic valve outside the second pipe 32 controls the flow rate. Subsequently, the material enters the gas-liquid separator 2 through the first pipe 21 for gas-liquid separation. The separated liquid can be collected through a storage tank 22 connected to the outside of the gas-liquid separator 2. An electric butterfly valve on the inlet pipe of the storage tank 22 controls the inlet volume. During the evaporation process, the second tube bundle 31 transports the generated steam to the condenser tube 36 through the second fitting. The outer tube of the condenser tube 36 is equipped with a coolant inlet and outlet. After the coolant is introduced, the rotating condenser tube 36 enhances the condensation effect. The condensed medium is processed through relevant pipelines. At the same time, the connecting fitting 11 at the top of the first tube bundle 3 and the discharge pipe 12 connected to the gas collecting pipe can be used to balance the internal gas pressure or discharge excess gas. In addition, the pipe at the bottom of the second tube bundle 31 and the external control valve can discharge the final residual material. Throughout the process, various pneumatic valves and electric valves work together to control the flow of materials and media, ensuring that the evaporation process is carried out efficiently. The preheater 34 is bolted to the first tube bundle 3 through an external support frame to ensure the structural stability of the preheater 34 during operation; the first tube bundle 3 and the gas-liquid separator 2 are installed inside the frame 1 through flanges, which enhances the firmness of the connection between the two and the frame 1 and ensures that the overall stability will not be affected by factors such as vibration during material conveying and separation. The external pressure valve 35 of the second tube bundle 31 can monitor and adjust the internal pressure of the second tube bundle 31 in real time to ensure that the internal pressure is in a suitable evaporation pressure environment. The pipe at the bottom of the second tube bundle 31 is used to discharge the residual material after treatment. The control valve outside the pipe can accurately control the discharge time and discharge amount to avoid material residue or excessive discharge. The pneumatic valves installed on the outside of the third pipe 33, the first pipe 21 and the second pipe 32 can respectively control the flow rate of materials entering the first tube bundle 3, the gas-liquid separator 2 and the material transported from the second tube bundle 31 to the first pipe 21, so as to achieve precise control of material transport in each link; the connecting pipe 11 connected to the top of the first tube bundle 3 can be used to connect to an external air source or discharge internal gas to balance the internal air pressure of the first tube bundle 3. The exhaust pipe 12 connected to the gas collecting pipe at the top of the first tube bundle 3 can collect excess gas generated inside the first tube bundle 3. The electric valve installed on its exterior can control whether the gas is discharged and the amount of discharge, ensuring that the gas pressure inside the first tube bundle 3 is stable and avoiding the impact of excessive gas pressure on evaporation efficiency or the creation of safety hazards.

[0046] The externally connected storage tank 22 of the gas-liquid separator 2 is used to store the liquid product obtained after gas-liquid separation. The electric butterfly valve installed on the outside of the liquid inlet pipe of the storage tank 22 can control the liquid inlet according to the liquid level in the storage tank 22 to prevent liquid overflow or insufficient storage. The sealed bearing 48 connecting the stirring rod 49 and the preheater 34 can prevent material or gas leakage in the preheater 34 and ensure the sealing of the preheating environment; the top of the stirring rod 49 is connected to the top of the inner cavity of the preheater 34 through a seated bearing, which enhances the stability of the stirring rod 49 when rotating and avoids affecting the stirring effect due to shaking. The inner tube of the condenser tube 36 is used to transport the steam to be condensed. The outer tube, which is fitted outside the inner tube, can be filled with coolant. The heat of the steam in the inner tube is absorbed by the circulating flow of the coolant, so as to realize the condensation of the steam. The coolant inlet and outlet are respectively set on the outer tube to facilitate the continuous supply and discharge of coolant and ensure the continuity of the condensation process. The annular seat of the limiting component 44 is mounted on the bearing outside the condenser tube 36, which acts as a radial limit for the condenser tube 36 to prevent it from shifting during rotation. Multiple connecting arms evenly distributed around the outer circumference of the annular seat are fixedly connected to the frame 1 by bolts, which stably fixes the limiting component 44 and the condenser tube 36 on the frame 1 to ensure the structural stability of the condenser tube 36 during rotation. In the rotary seal at the connection between the fourth pipe 46 and the second pipe fitting, the stationary ring is fixed outside the second pipe fitting, and the rotating ring is fixed outside the fourth pipe 46. The sealing gasket between the stationary ring and the rotating ring can prevent medium leakage and ensure the sealing performance when the two rotate relative to each other. The protective cover outside the transmission mechanism 4 can protect the servo motor 41, gears and other components from external dust and impurities. The heat dissipation holes on one side of the protective cover are conducive to heat dissipation of the servo motor 41. The mounting plate at the bottom is fixed to the frame 1 by bolts, which enhances the overall stability of the transmission mechanism 4.

[0047] 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 process, method, article, or apparatus.

[0048] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-effect thermally accelerated short-time evaporator, including: The machine includes a frame (1), a gas-liquid separator (2), a first tube bundle (3), and a first pipe (21). The gas-liquid separator (2) and the first tube bundle (3) are respectively connected to the frame (1). The first pipe (21) connects the gas-liquid separator (2) and the first tube bundle (3). The machine is characterized in that: the top of the first tube bundle (3) is connected to a third pipe (33), the other end of the third pipe (33) is connected to a preheater (34), the bottom of the first tube bundle (3) is connected to a second tube bundle (31), the second tube bundle (31) is connected to the first pipe (21) via a second pipe (32), the outside of the preheater (34) is connected to the second tube bundle (31) via a first fitting, the outside of the second tube bundle (31) is connected to a condenser (36) via a second fitting, and a transmission mechanism (4) is provided on the outside of the condenser (36). The transmission mechanism (4) includes a servo motor (41), the output end of which is connected to a first gear (42), and the first gear (42) is externally meshed with a second gear (43). The second gear (43) is sleeved on the outside of the condenser tube (36), and the outside of the condenser tube (36) is sleeved with a bearing. The outside of the bearing is connected to a limiting member (44), and the limiting member (44) is connected to the frame (1). The top of the condenser tube (36) is connected to a fourth pipe (46), and the inner cavity of the fourth pipe (46) is connected to a second pipe fitting through a bearing. The outside of the fourth pipe (46) is sleeved with a third gear (45), and the outside of the third gear (45) is meshed with a fourth gear (47). The top of the fourth gear (47) is connected to a stirring rod (49), and the stirring rod (49) is located in the inner cavity of the preheater (34).

2. The multi-effect thermally accelerated short-time evaporator according to claim 1, characterized in that: The preheater (34) is externally connected to a support frame, which is connected to the first tube bundle (3) by bolts. The first tube bundle (3) and the gas-liquid separator (2) are installed inside the frame (1) via flanges.

3. The multi-effect thermally accelerated short-time evaporator according to claim 1, characterized in that: The second tube bundle (31) is externally connected to a pneumatic valve (35), and a pipe is provided at the bottom of the second tube bundle (31), with a control valve provided on the outside of the pipe.

4. The multi-effect thermally accelerated short-time evaporator according to claim 1, characterized in that: Pneumatic valves are provided on the outside of the third pipe (33), the first pipe (21) and the second pipe (32), and a connecting pipe (11) is connected to the top of the first pipe bundle (3).

5. The multi-effect thermally accelerated short-time evaporator according to claim 1, characterized in that: The top of the first tube bundle (3) is provided with a gas collecting pipe, and the outside of the gas collecting pipe is connected to a discharge pipe (12), and an electric valve is provided on the outside of the discharge pipe (12).

6. The multi-effect thermally accelerated short-time evaporator according to claim 1, characterized in that: The gas-liquid separator (2) is externally connected to a liquid storage tank (22), and an electric butterfly valve is installed outside the liquid inlet pipe of the liquid storage tank (22).

7. The multi-effect thermally accelerated short-time evaporator according to claim 1, characterized in that: A sealed bearing (48) is connected between the stirring rod (49) and the preheater (34), and the top of the stirring rod (49) is connected to the top of the inner cavity of the preheater (34) through a seated bearing.

8. The multi-effect thermally accelerated short-time evaporator according to claim 1, characterized in that: The condenser tube (36) includes an inner tube and an outer tube sleeved outside the inner tube. The top and bottom of the outer tube are respectively provided with a coolant inlet and a coolant outlet.

9. The multi-effect thermally accelerated short-time evaporator according to claim 1, characterized in that: The limiting member (44) includes an annular seat sleeved on the outside of the bearing. Multiple connecting arms are evenly distributed on the outer periphery of the annular seat. The other end of the connecting arm is fixedly connected to the frame (1) by bolts.

10. The multi-effect thermally accelerated short-time evaporator according to claim 1, characterized in that: A rotary seal is provided at the connection between the fourth pipe (46) and the second pipe fitting. The rotary seal includes a stationary ring fixedly sleeved on the outside of the second pipe fitting and a rotating ring fixedly sleeved on the outside of the fourth pipe (46). A sealing gasket is provided between the stationary ring and the rotating ring. The transmission mechanism (4) also includes a protective cover provided on the outside of the servo motor (41). A heat dissipation hole is provided on one side of the protective cover. A mounting plate is provided at the bottom of the protective cover. The mounting plate is fixedly connected to the frame (1) by bolts.

Images