Magnetic stirring reduced pressure distillation device for hydrolat production

Abstract

The utility model discloses a magnetic stirring reduced pressure distillation device for hydrolat production. The magnetic stirring reduced pressure distillation device comprises a heat collection type magnetic stirrer, a distillation kettle mounted above the heat collection type magnetic stirrer, and a condensation mechanism mounted on the right side of the distillation kettle, the condensation mechanism is mounted on the right side of the distillation kettle, the pressure reduction mechanism is arranged on the right side of the condensation mechanism, the heat collection type magnetic stirrer is provided with a magnetic stirrer, and the magnetic stirrer is located in an inner cavity of the distillation kettle; according to the utility model, the heat collection type magnetic stirrer is adopted to realize magnetic stirring of raw materials, and the structure of the magnetic stirrer is easy to take and convenient to clean and can increase the rotating vortex, so that the raw materials are mixed more uniformly, and the stirring efficiency and the distillation effect are improved; meanwhile, the air pressure of the whole device can be reduced so as to reduce the boiling point of water, boiling evaporation can be achieved at a low temperature, the extraction efficiency is improved, the real fragrance of a to-be-distilled matter is reserved, and the overall quality of hydrolat is improved.

Description

Technical Field

[0001] This utility model relates to the field of hydrosol production technology, specifically to a magnetic stirring vacuum distillation device for hydrosol production. Background Technology

[0002] Hydrosol, also known as water-based essential oil, refers to a 100% saturated distillate separated during the distillation and extraction of essential oils. It is a byproduct of the production of essential oils. Because of its lower density, the essential oil floats on the surface of the collected liquid, while the water remains at the bottom. This water is the hydrosol. Hydrosol is also an aqueous solution condensed from the distillation of aromatic substances. Because it is easily absorbed by the skin, has a mild fragrance, and contains no added substances, it can be used for skin moisturizing.

[0003] A Chinese utility model patent with patent number CN221894940 U discloses a distillation extraction device for hydrosol production. This device mounts a stirring motor on the top cover, uses a large stirring paddle to stir in the distillation vessel, and connects to a condenser to collect the hydrosol. Although stirring is achieved during the distillation process, opening the cover to remove the entire stirring mechanism is too bulky, unsafe, and inconvenient to clean. In addition, the temperature during distillation is too high, resulting in high energy consumption, and it is very easy to cause the substances to decompose or react due to high temperature, especially the loss of heat-sensitive aromatic volatile terpenes, which cannot meet the production requirements. Utility Model Content

[0004] The purpose of this invention is to provide a magnetic stirring vacuum distillation device for hydrosol production, in order to solve the problems mentioned in the background art, such as the stirring mechanism being too bulky to disassemble, inconvenient to clean, high heating temperature causing loss of heat-sensitive volatile substances, and high energy consumption.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a magnetic stirring vacuum distillation device for hydrosol production, comprising a heat-collecting magnetic stirrer, a distillation vessel installed above the heat-collecting magnetic stirrer, and a condensation mechanism installed on the right side of the distillation vessel; the bottom of the distillation vessel is provided with a support platform, the inner top of the support platform is provided with a chamber for housing the heat-collecting magnetic stirrer, the top of the distillation vessel is detachably connected with a cover plate, the top of the cover plate is provided with a feed inlet, the upper left side of the distillation vessel is provided with a water injection pipe, the bottom left side of the distillation vessel is provided with a water outlet pipe, and the inner side wall of the distillation vessel is provided with side teeth;

[0006] The condensing mechanism is installed on the right side of the distillation kettle. The condensing mechanism consists of a condenser, a water inlet, a drain outlet, a gas guide pipe, a liquid collection pipe, and a collector. The condenser is connected to the inner cavity of the distillation kettle through the gas guide pipe. A pump interface is provided on the upper right side of the condenser. A pressure reducing mechanism is provided on the right side of the condensing mechanism. The pressure reducing mechanism is connected to the pump interface of the condensing mechanism. A base is provided at the bottom of the pressure reducing mechanism. A control panel is provided on the front of the base.

[0007] The heat-collecting magnetic stirrer has a magnetic stir bar located inside the distillation vessel. The heat-collecting magnetic stirrer consists of a stirrer body and a stirring shaft. The top of the stirring shaft extends vertically into the bottom of the distillation vessel, and the magnetic stir bar is installed at the top of the stirring shaft.

[0008] Furthermore, the magnetic stirrer has a top view of a cross-shaped structure. The magnetic stirrer consists of a first blade and a second blade that intersect each other. Both the first blade and the second blade are triangular prisms. The first blade is located below the second blade. The front and back of the first blade are arranged with stirring teeth at intervals. The left and right sides of the second blade are arranged with protruding teeth at intervals.

[0009] Furthermore, the main body of the stirrer includes a base shell, a reducer, a magnetic drive, a sliding bearing, a bearing housing, and a stirrer cover. The magnetic drive consists of three parts: an inner magnetic rotor, an outer magnetic rotor, and an isolation sleeve. The outer magnetic rotor and the reducer are integrated to form a power component, and the stirring shaft and the inner magnetic rotor are integrated and supported by the bearing housing to form a working component. The working component and the power component are completely isolated by the isolation sleeve. A motor for driving the reducer is also installed on the base shell, and the reducer drives the outer magnetic rotor to rotate.

[0010] Furthermore, the heat-collecting magnetic stirrer has built-in heating and magnetic stirring functions, and the heat-collecting magnetic stirrer adopts a 99-1A type high-power DC magnetic stirrer.

[0011] Furthermore, the pressure reduction mechanism includes a vacuum pump and a rubber hose for connecting the vacuum pump to the pump interface. The vacuum pump uses a WY-15L model stainless steel pump body and is mounted on a base.

[0012] Furthermore, the inner bottom surface of the distillation vessel is an inclined surface, the lowest point of which is close to the inner opening of the water outlet pipe, and the inclination angle of the inclined surface is 10-70 degrees.

[0013] Furthermore, it also includes a base for supporting the support platform, collector, and base. The base is equipped with casters at its bottom and a push-pull rod on its right side.

[0014] The beneficial effects of this utility model are as follows: This utility model uses a heat-collecting magnetic stirrer to achieve magnetic stirring of raw materials. The structure of the magnetic stirrer is easy to handle and clean, and it can increase the rotating eddy current. The interaction between the side teeth, convex teeth and stirring teeth allows the liquid being stirred and rotated in the distillation vessel to collide and grind rapidly, thereby making the raw materials more uniformly mixed and improving the stirring efficiency and distillation effect. At the same time, the pressure reduction mechanism can reduce the gas pressure of the entire device, thereby lowering the boiling point of water. It can boil and evaporate at a lower temperature, improving the extraction efficiency, effectively protecting the heat-sensitive volatile substances in the raw materials, which is conducive to preserving the true aroma of the substance to be distilled and improving the overall quality of the hydrosol. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the magnetic stirring vacuum distillation apparatus of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the distillation vessel and condensation mechanism of this utility model in their combined state;

[0017] Figure 3 This utility model Figure 1 Main view of the structure;

[0018] Figure 4 This is a schematic diagram of the structure of the heat-collecting magnetic stirrer of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the main body of the stirrer of this utility model;

[0020] Figure 6 This is a top view of the structure of the present invention in the combined state of the first and second blades.

[0021] In the diagram: 1. Base, 2. Casters, 3. Support, 4. Heat-collecting magnetic stirrer, 41. Stirrer body, 411. Base shell, 412. Reducer, 413. External magnetic rotor, 414. Isolation sleeve, 415. Internal magnetic rotor, 416. Sliding bearing, 417. Stirrer cover, 418. Bearing housing, 42. Stirring shaft, 43. First impeller, 431. Stirring teeth, 44. Second impeller, 441. Convex teeth, 5. Distillation kettle, 501. Side teeth, 502. Water injection pipe, 503. Feed inlet, 504. Water outlet, 505. Observation window, 6. Cover plate, 7. Condensation mechanism, 701. Condenser, 702. Drain outlet, 703. Pump interface, 704. Air guide pipe, 705. Water inlet, 706. Collection liquid guide pipe, 707. Support, 708. Fixing rod, 709. Collector, 8. Strengthening frame, 9. Vacuum pump, 901. Rubber hose, 10. Control panel, 11. Base, 12. Push-pull 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] Please see Figure 1-6 This invention provides a technical solution for a magnetic stirring vacuum distillation apparatus for hydrosol production. The apparatus includes a heat-collecting magnetic stirrer 4, a distillation vessel 5 mounted above the heat-collecting magnetic stirrer 4, and a condensing mechanism 7 mounted on the right side of the distillation vessel 5. It also includes a base 1, which supports a support platform 3, a collector 709, and a base 11. Casters 2 are mounted on the bottom of the base 1, and a push-pull rod 12 is mounted on the right side of the base 1. The casters 2 facilitate the movement of the entire magnetic stirring vacuum distillation apparatus for hydrosol production to the desired area, thus improving operational convenience. Personnel movement; the bottom of the distillation vessel 5 is provided with a support platform 3, and the inner top of the support platform 3 is provided with a chamber for the heat-collecting magnetic stirrer 4 to be placed. The top of the distillation vessel 5 is detachably connected with a cover plate 6, and a feed inlet 503 is opened above the cover plate 6. A water injection pipe 502 is opened on the upper left side of the distillation vessel 5. The feed inlet 503 has a detachable sealing cover. A high-temperature resistant silicone sealing ring is set between the feed inlet 503 and the sealing cover to improve the sealing performance of the feed inlet 503 and reduce the risk of steam leakage. A water outlet pipe 504 is opened at the bottom left side of the distillation vessel 5, and the inner side wall of the distillation vessel 5 is provided with side teeth 501.

[0024] It should be noted that the distillation vessel 5 mentioned above has an observation window 505 on its front side. The inner bottom surface of the distillation vessel 5 is an inclined surface. The lowest point of this inclined surface is close to the inner opening of the water outlet pipe 504. The inclination angle of the inclined surface is 10-70 degrees. Preferably, the inclination of the inner bottom surface of the distillation vessel 5 can be set to 30 degrees, 45 degrees or 60 degrees, so that the liquid in the distillation vessel 5 gathers at the inlet of the water outlet pipe 504, which facilitates the rapid discharge of liquid by the water outlet pipe 504.

[0025] In this embodiment, the condensing mechanism 7 is installed on the right side of the distillation vessel 5. The condensing mechanism 7 consists of a condenser 701, a water inlet 705, a drain outlet 702, a gas guide pipe 704, a liquid collection pipe 706, and a collector 709. The condenser 701 is connected to the inner cavity of the distillation vessel 5 via the gas guide pipe 704. A pump interface 703 is located on the upper right side of the condenser 701. The condenser 701 is fixedly installed on the right side of the distillation vessel 5 by a fixing rod 708 and a bracket 707. A pressure reducing mechanism is located on the right side of the condensing mechanism 7, and this pressure reducing mechanism is connected to the pump interface 703 of the condensing mechanism 7. The pressure reducing mechanism has a base 11 at the bottom, and a control panel 10 is provided on the front of the base 11. The control panel 10 can facilitate the control of the condensing mechanism 7, the pressure reducing mechanism, and the heat-collecting magnetic stirrer 4. The pressure reducing mechanism includes a vacuum pump 9 and a rubber tube 901 for connecting the vacuum pump 9 to the pump interface 703. The vacuum pump 9 uses, but is not limited to, a WY-15L model stainless steel pump body and is mounted on the base 11. A reinforcing frame 8 is installed on the right side of the condenser 701. The reinforcing frame 8 is used to support and reinforce the rubber tube 901. The condenser 701 has a built-in spiral condenser tube.

[0026] In this embodiment, the aforementioned heat-collecting magnetic stirrer 4 includes a magnetic stir bar located inside the distillation vessel 5. The heat-collecting magnetic stirrer 4 consists of a stirrer body 41 and a stirring shaft 42. The top end of the stirring shaft 42 extends vertically into the bottom of the distillation vessel 5, and the magnetic stir bar is mounted on the top end of the stirring shaft 42. The heat-collecting magnetic stirrer 4 has both heating and magnetic stirring functions. It employs, but is not limited to, a 99-1A type high-power DC magnetic stirrer. The heat-collecting magnetic stirrer 4 can drive the magnetic stir bar to rotate, simultaneously heating and stirring, thus improving extraction efficiency. Furthermore, unlike traditional stirrers, the magnetic stir bar is not heavy or bulky, allowing for easy... Easy to handle and clean; the magnetic stirrer has a cross-shaped structure when viewed from above. It consists of a first blade 43 and a second blade 44 that intersect each other. Both the first blade 43 and the second blade 44 are triangular prisms. The first blade 43 is located below the second blade 44. The front and back of the blade of the first blade 43 are arranged with stirring teeth 431 at intervals. The left and right sides of the blade of the second blade 44 are arranged with protruding teeth 441 at intervals. The triangular prism structure of the first blade 43 and the second blade 44 can increase the vortex when the first blade 43 and the second blade 44 rotate, thereby greatly improving the stirring efficiency of the raw materials in the distillation vessel 5.

[0027] It should be noted that the aforementioned agitator body 41 includes a base shell 411, a reducer 412, a magnetic drive, a sliding bearing 416, a bearing housing 418, and an agitator cover 417. The magnetic drive consists of three parts: an inner magnetic rotor 415, an outer magnetic rotor 413, and an isolation sleeve 414. The outer magnetic rotor 413 is integrated with the reducer 412 to form a power component. The agitator shaft 42 is integrated with the inner magnetic rotor 415 and supported by the bearing housing 418 to form a working component. The working component and the power component are completely isolated by the isolation sleeve 414. Separately, a motor is also installed on the base shell 411 to drive the reducer 412 to rotate. The reducer 412 rotates to drive the outer magnetic rotor 413 to rotate. When the heat-collecting magnetic stirrer 4 is working, the motor drives the outer magnetic rotor 413 to rotate via the reducer 412. Since there is a magnetic field between the inner magnetic rotor 415 and the outer magnetic rotor 413, the outer magnetic rotor 413 will act on the inner magnetic rotor 415 through magnetic coupling, thereby driving the stirring shaft 42 connected to the inner magnetic rotor 415 to rotate synchronously, so as to achieve the purpose of non-contact torque transmission.

[0028] It is worth noting that, in order to balance the internal and external pressures of the magnetic stirring vacuum distillation apparatus, both the water inlet pipe 502 and the water outlet pipe 504 are equipped with valves. When the water inlet pipe 502 is not connected to a water pipe, the valve can be opened after distillation to allow air to enter, which is beneficial for the drainage of the water outlet pipe 504. The vacuum mechanism can retain more heat-sensitive volatile substances, saving energy and protecting the environment, and improving extraction efficiency. The operation of the vacuum pump 9 can extract air from the magnetic stirring vacuum distillation apparatus, and the apparatus can be in a certain vacuum state to lower the boiling point of water. Boiling and evaporation can be achieved at a low temperature, which can effectively protect heat-sensitive volatile substances, reduce heat loss, and make the extraction speed faster and more energy-efficient. The condensation mechanism facilitates the collection of hydrosol. The length of the collection liquid conduit 706 can be set to a relatively long length and is equipped with a valve. Because the essential oil is light in density, it floats on the top layer, and the by-product essential oil can be collected at the same time as the hydrosol below.

[0029] The magnetic stirring vacuum distillation apparatus for hydrosol production requires the following steps: First, the aromatic substance to be distilled is added to the distillation vessel 5 through the feed inlet 503. Then, water is injected into the distillation vessel 5 through the water injection pipe 502 to mix with the substance. Next, the magnetic stir bar is placed into the distillation vessel 5 and allowed to sink to the bottom. The heating and magnetic stirring functions of the heat-collecting magnetic stirrer 4 are then activated. The sealing cover of the feed inlet 503 is then closed, the water outlet valve 504 is closed, the valve of the collection liquid conduit 706 is closed, and the condenser 70 is opened. The condensate inlet 705 and outlet 702 on device 1 are connected. Then, the vacuum pump 9 is started to extract air from the device, creating a certain vacuum inside. After boiling, the steam rises and enters the condenser 701 through the gas guide pipe 704. It liquefies into liquid when it encounters the spiral condenser tube and drips into the collection liquid pipe 706. After a period of time, the valve of the collection liquid pipe 706 is opened for collection. The bottom of the collection liquid pipe 706 contains hydrosol, and the top contains essential oil. The hydrosol below is collected by the collector 709, thus completing the hydrosol production and collection work.

[0030] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0031] The above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be understood that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present utility model, and these all fall within the protection scope of the present utility model. In the present utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "joining", "fixing", etc. should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components. Among them, there are various ways of detachable installation, such as by plugging and snapping, or by bolt connection, etc.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A magnetically stirred vacuum distillation apparatus for hydrosol production, characterized in that, It includes a heat-collecting magnetic stirrer, a distillation vessel mounted above the heat-collecting magnetic stirrer, and a condensation mechanism mounted on the right side of the distillation vessel; the bottom of the distillation vessel is provided with a support platform, the inner top of the support platform is provided with a chamber for the heat-collecting magnetic stirrer to be placed, the top of the distillation vessel is detachably connected with a cover plate, the top of the cover plate is provided with a feed inlet, the upper left side of the distillation vessel is provided with a water injection pipe, the bottom left side of the distillation vessel is provided with a water outlet pipe, and the inner side wall of the distillation vessel is provided with side teeth; The condensing mechanism is installed on the right side of the distillation kettle. The condensing mechanism consists of a condenser, a water inlet, a drain outlet, a gas guide pipe, a liquid collection pipe, and a collector. The condenser is connected to the inner cavity of the distillation kettle through the gas guide pipe. A pump interface is provided on the upper right side of the condenser. A pressure reducing mechanism is provided on the right side of the condensing mechanism. The pressure reducing mechanism is connected to the pump interface of the condensing mechanism. A base is provided at the bottom of the pressure reducing mechanism. A control panel is provided on the front of the base. The heat-collecting magnetic stirrer has a magnetic stir bar located inside the distillation vessel. The heat-collecting magnetic stirrer consists of a stirrer body and a stirring shaft. The top of the stirring shaft extends vertically into the bottom of the distillation vessel, and the magnetic stir bar is installed at the top of the stirring shaft.

2. The magnetic stirring vacuum distillation apparatus for hydrosol production according to claim 1, characterized in that: The magnetic stirrer has a cross-shaped structure when viewed from above. It consists of a first blade and a second blade that cross each other. Both the first blade and the second blade are triangular prisms. The first blade is located below the second blade. The front and back of the first blade are arranged with stirring teeth at intervals. The left and right sides of the second blade are arranged with protruding teeth at intervals.

3. The magnetic stirring vacuum distillation apparatus for hydrosol production according to claim 1, characterized in that: The main body of the stirrer includes a base shell, a reducer, a magnetic drive, a sliding bearing, a bearing housing, and a stirrer cover. The magnetic drive consists of three parts: an inner magnetic rotor, an outer magnetic rotor, and an isolation sleeve. The outer magnetic rotor and the reducer are integrated to form a power component. The stirring shaft and the inner magnetic rotor are integrated and supported by the bearing housing to form a working component. The working component and the power component are completely isolated by the isolation sleeve. A motor for driving the reducer is also installed on the base shell. The reducer drives the outer magnetic rotor to rotate.

4. A magnetic stirring vacuum distillation apparatus for hydrosol production according to claim 1, characterized in that: The heat-collecting magnetic stirrer has built-in heating and magnetic stirring functions, and it adopts the 99-1A type high-power DC magnetic stirrer.

5. A magnetic stirring vacuum distillation apparatus for hydrosol production according to claim 1, characterized in that: The pressure reduction mechanism includes a vacuum pump and a rubber tube for connecting the vacuum pump to the pump interface. The vacuum pump uses a WY-15L model stainless steel pump body and is mounted on a base.

6. A magnetic stirring vacuum distillation apparatus for hydrosol production according to claim 1, characterized in that: The inner bottom surface of the distillation vessel is an inclined surface, and the lowest point of the inclined surface is close to the inner opening of the water outlet pipe. The inclination angle of the inclined surface is 10-70 degrees.

7. A magnetic stirring vacuum distillation apparatus for hydrosol production according to claim 1, characterized in that: It also includes a base for supporting the support platform, collector and base, with casters installed at the bottom of the base and a push-pull rod installed on the right side of the base.

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