A high-efficiency, energy-saving, multi-effect evaporation and concentration equipment for traditional Chinese medicine extracts

Abstract

This utility model discloses a high-efficiency, energy-saving, multi-effect evaporation and concentration device for traditional Chinese medicine extracts, comprising an inner cylinder, a jacket, a stirring mechanism, a condenser, a cooler, a collection tank, and process piping. The outer wall of the inner cylinder is provided with spiral guide grooves that cooperate with the heat-conducting protrusions of the jacket to enhance heat transfer; the stirring blades have a microporous structure to reduce liquid adhesion; the condenser and cooler are connected by a double-layer vacuum insulated pipe to reduce heat loss; a liquid level sensor at the top of the collection tank enables intelligent drainage control. The equipment is made of austenitic stainless steel, with a nitriding layer added to key parts to improve corrosion resistance, and magnetic coupling drive to prevent leakage. This application has significant energy-saving effects and high-efficiency concentration performance, meeting the needs of green environmental protection and high-efficiency production.

Description

Technical Field

[0001] This utility model relates to the field of traditional Chinese medicine production equipment technology, and in particular to a high-efficiency, energy-saving, multi-effect evaporation and concentration equipment for traditional Chinese medicine extracts. Background Technology

[0002] In industries such as chemical, pharmaceutical, and food processing, processes like vacuum concentration, evaporation, and paste formation of liquids are crucial steps in production. This is especially true in the processing of traditional Chinese medicine extracts, where highly efficient and energy-saving evaporation and concentration equipment is paramount. While commonly available distillation concentrators can meet basic process requirements, they still have some shortcomings in practical applications. For example, existing equipment may have dead angles in their structural design, leading to inconvenient cleaning and easy material residue, affecting product quality. Furthermore, some equipment is made of materials with poor corrosion resistance, making them prone to aging or damage after prolonged use, increasing maintenance costs and safety hazards. In addition, traditional heating methods consume high energy and have low thermal efficiency, failing to meet the energy-saving and environmental protection requirements of modern industry.

[0003] On the other hand, existing evaporation and concentration equipment also has certain limitations in the recovery and utilization of secondary steam, often failing to fully realize efficient energy utilization, resulting in high production costs. Especially in multi-effect evaporation processes, if the design of the condensation and cooling systems is not optimized, incomplete condensate recovery may occur, thus affecting overall process efficiency. At the same time, the ease of operation and automation of the equipment need improvement; for example, the vacuum control during liquid collection tank drainage can be problematic, as improper operation may affect the stability and safety of the system.

[0004] Therefore, developing a high-efficiency, energy-saving, and environmentally friendly multi-effect evaporation and concentration device for traditional Chinese medicine extracts, with a reasonable structure, superior performance, and energy saving, has become a pressing technical challenge for the industry. Ideally, the device should possess excellent corrosion resistance, high thermal energy utilization, and convenient operation. Furthermore, it must comply with relevant standards such as GB150.1~4-2011 "Pressure Vessels" and TSG 21-2016 "Safety Technical Supervision Regulations for Stationary Pressure Vessels" to ensure its safety and reliability in practical applications. Utility Model Content

[0005] The purpose of this utility model is to provide a high-efficiency, energy-saving, multi-effect evaporation and concentration device for traditional Chinese medicine extracts, which solves the problems mentioned in the background art.

[0006] This invention is implemented as follows: a high-efficiency, energy-saving, multi-effect evaporation and concentration device for traditional Chinese medicine extracts. The device mainly consists of an inner cylinder, a jacket, a stirring mechanism, a condenser, a cooler, a collection tank, and process piping. The outer wall of the inner cylinder is provided with spiral guide grooves, and the inner wall of the jacket is provided with heat-conducting protrusions that match the spiral guide grooves, creating vortices in the heating medium within the jacket to enhance heat transfer. The stirring mechanism includes a main shaft and impellers mounted on the main shaft. The impeller surface has a microporous structure, which effectively reduces material adhesion and promotes uniform heating. The condenser and cooler are connected by a double-layer sealed pipe, with a vacuum insulation layer inside the double-layer pipe to reduce heat loss. A liquid level sensor is installed at the top of the collection tank; when the liquid level reaches a preset height, the inlet valve is automatically closed and the vacuum is cut off, achieving intelligent drainage control.

[0007] The inner cylinder welds, both inside and out, undergo meticulous grinding to ensure no dead corners remain; the inner wall employs mirror polishing technology, achieving a surface roughness of less than 0.4μm. All parts in contact with materials are made of austenitic stainless steel S30408, with a nitriding layer added to key areas to further enhance corrosion resistance. The stirring mechanism's main shaft is driven by magnetic coupling, avoiding the leakage problems of traditional mechanical seals and reducing maintenance costs. A multi-stage demister is added inside the condenser, efficiently separating droplets from secondary steam and improving condensation efficiency. A temperature control valve is designed at the cooler outlet, allowing for flexible adjustment of cooling water flow according to actual needs, thereby optimizing energy utilization.

[0008] This invention features a compact structure, convenient operation, significant energy-saving effects, and highly efficient concentration performance. The combined design of spiral guide channels and heat-conducting protrusions enhances heat transfer efficiency, while microporous impellers reduce material adhesion. An intelligent liquid level control system enables automated operation, significantly improving production efficiency. Furthermore, the application of double-layer vacuum insulated pipes and temperature control valves effectively reduces energy consumption, meeting the dual demands of the modern pharmaceutical industry for green environmental protection and high-efficiency production. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency, energy-saving, multi-effect evaporation and concentration device for traditional Chinese medicine extracts.

[0010] The attached figures are labeled as follows:

[0011] 1. Inner cylinder; 2. Jacket; 5. Stirring mechanism; 6. Main shaft; 9. Condenser; 10. Cooler; 13. Temperature control valve; 14. Liquid collection tank; 15. Liquid level sensor; 16. Process piping. Detailed Implementation

[0012] This invention provides a high-efficiency, energy-saving, multi-effect evaporation and concentration device for traditional Chinese medicine extracts. In actual operation, this device can significantly improve heat transfer efficiency, reduce energy consumption, and achieve intelligent operation, making it suitable for the modern pharmaceutical industry's needs for efficient production and green environmental protection.

[0013] like Figure 1 As shown, the main components of this equipment include an inner cylinder 1, a jacket 2, a stirring mechanism 5, a condenser 9, a cooler 10, a collection tank 14, and process piping 16. These components, through rational design and optimized connection relationships, form a complete system for the efficient concentration of traditional Chinese medicine extracts. The inner cylinder 1 is the core part of the equipment, with a spiral guide groove on its outer wall. The inner wall of the jacket 2 has corresponding heat-conducting protrusions that match the spiral guide groove. The matching design of the spiral guide groove and the heat-conducting protrusion creates a vortex effect when the heating medium flows within the jacket 2, thereby enhancing the heat transfer effect. This structure not only improves heating efficiency but also reduces heating time, thus reducing energy consumption. In addition, the welds of the inner cylinder 1 are finely ground both inside and out to ensure no dead corner residue, and the inner wall uses mirror polishing technology, with a surface roughness of less than 0.4μm, further reducing the possibility of liquid adhesion and facilitating cleaning and maintenance.

[0014] The stirring mechanism 5 is one of the key components of the equipment. Its main shaft 6 is driven by magnetic coupling, avoiding the leakage problems of traditional mechanical seals and reducing maintenance costs. The main shaft 6 is equipped with blades, the surface of which has a microporous structure. This microporous structure effectively reduces the adhesion of the liquid and promotes uniform heating, thereby improving concentration efficiency. In actual operation, the stirring mechanism 5, through the rotation of the main shaft 6, drives the blades to circulate the liquid within the inner cylinder 1, further increasing the contact area between the liquid and the heating surface and improving heat transfer efficiency. Furthermore, the operating speed of the stirring mechanism 5 can be adjusted according to the properties of the liquid to accommodate different types of traditional Chinese medicine extracts.

[0015] The condenser 9 and cooler 10 are connected by a double-sealed pipe with a vacuum insulation layer inside, which effectively reduces heat loss and improves condensation efficiency. The condenser 9 is equipped with a multi-stage demister, which efficiently separates droplets from the secondary steam, thereby reducing impurities in the condensate and improving condensation quality. The cooler 10 outlet is equipped with a temperature control valve 13, which allows for flexible adjustment of the cooling water flow rate according to actual needs, thus optimizing energy utilization. In actual operation, after the secondary steam enters the cooler 10 from the condenser 9, the cooling water flow rate is precisely controlled by the temperature control valve 13, ensuring the stability and efficiency of the condensation process.

[0016] The collection tank 14 is used to collect the concentrated medicine solution, and a level sensor 15 is installed on its top. When the liquid level reaches a preset height, the level sensor 15 automatically closes the inlet valve and cuts off the vacuum, realizing intelligent drainage control. This design not only simplifies the operation process but also avoids equipment failure or medicine waste caused by human error. The connection between the collection tank 14 and the process pipeline 16 adopts a high-sealing design to ensure the sealing performance of the entire system. In practical applications, the medicine solution flows from the inner cylinder 1 into the collection tank 14 through the process pipeline 16, and after being detected by the level sensor 15, the automated drainage process is completed.

[0017] All parts of this equipment that come into contact with materials are made of austenitic stainless steel S30408, with a nitriding layer added to key areas to further enhance corrosion resistance. This material selection not only ensures the service life of the equipment but also meets the stringent hygiene and safety requirements of the pharmaceutical industry. In actual operation, the equipment's ease of use is fully demonstrated. For example, before starting the equipment, simply inject the herbal extract into the inner cylinder 1 and connect it to other components via the process pipe 16. Subsequently, the heating medium enters through the jacket 2 and forms a vortex under the action of the spiral guide channel and heat-conducting protrusions, rapidly heating the liquid in the inner cylinder 1. Simultaneously, the stirring mechanism 5 begins operation; the microporous structure on the blades effectively reduces liquid adhesion, ensuring uniform heating. As the evaporation process proceeds, the secondary steam enters the condenser 9 and, after being separated into droplets by a multi-stage demister, enters the cooler 10, where it is finally cooled into liquid and collected in the collection tank 14. Throughout the process, the liquid level sensor 15 monitors the liquid level changes in the collection tank 14 in real time and automatically closes the inlet valve and cuts off the vacuum when the set value is reached, completing the drainage operation.

[0018] As can be seen from the above specific embodiments, the high-efficiency, energy-saving, multi-effect evaporation and concentration equipment for traditional Chinese medicine extracts of this utility model features a compact structure and convenient operation. The equipment enhances heat transfer efficiency through the combined design of spiral guide channels and heat-conducting protrusions, reduces material adhesion using microporous impellers, and achieves automated operation through an intelligent liquid level control system, significantly improving production efficiency. Furthermore, the application of double-layer vacuum insulated pipes and temperature control valve 13 effectively reduces energy consumption, meeting the dual demands of the modern pharmaceutical industry for green environmental protection and high-efficiency production.

[0019] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency, energy-saving, multi-effect evaporation and concentration device for traditional Chinese medicine extracts, characterized in that, The equipment is mainly composed of an inner cylinder (1), a jacket (2), a stirring mechanism (5), a condenser (9), a cooler (10), a collection tank (14), and a process pipeline (16). The outer wall of the inner cylinder (1) is provided with a spiral guide groove, and the inner wall of the jacket (2) is provided with a heat-conducting protrusion that matches the spiral guide groove. The stirring mechanism (5) includes a main shaft (6) and a blade set on the main shaft (6). The surface of the blade is provided with a microporous structure. The condenser (9) and the cooler (10) are connected by a double-layer sealed pipeline. The double-layer sealed pipeline is provided with a vacuum insulation layer. The top of the collection tank (14) is provided with a liquid level sensor (15).

2. The high-efficiency, energy-saving, multi-effect evaporation and concentration equipment for traditional Chinese medicine extracts according to claim 1, characterized in that: The inner cylinder (1) has finely ground welds inside and out, and the inner wall is polished with mirror polishing technology, with a surface roughness of less than 0.4μm.

3. The high-efficiency, energy-saving, multi-effect evaporation and concentration equipment for traditional Chinese medicine extracts according to claim 1, characterized in that: All parts of the equipment that come into contact with materials are made of austenitic stainless steel S30408, and a nitriding layer is added to key parts.

4. The high-efficiency, energy-saving, multi-effect evaporation and concentration equipment for traditional Chinese medicine extracts according to claim 1, characterized in that: The main shaft (6) of the stirring mechanism (5) is driven by magnetic coupling.

5. The high-efficiency, energy-saving, multi-effect evaporation and concentration equipment for traditional Chinese medicine extracts according to claim 1, characterized in that: The condenser (9) is equipped with a multi-stage defoaming device.

6. The high-efficiency, energy-saving, multi-effect evaporation and concentration equipment for traditional Chinese medicine extracts according to claim 1, characterized in that: The outlet end of the cooler (10) is equipped with a temperature control valve (13).

7. The high-efficiency, energy-saving, multi-effect evaporation and concentration equipment for traditional Chinese medicine extracts according to claim 1, characterized in that: The liquid level sensor (15) on the top of the collection tank (14) is used to detect the liquid level height. When the liquid level reaches the preset value, the inlet valve is automatically closed and the vacuum is cut off.

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