Vacuum vortex concentration method

Abstract

The invention discloses a vacuum vortex concentration method and relates to a concentration device.The concentration device comprises a concentration bottle used for containing liquid to be concentrated, a bottle plug and an air extractor, a spiral groove and a through hole are formed in the bottle plug, and the spiral groove is formed around the axis of the bottle plug; the concentration method comprises the following steps: S1, filling a to-be-concentrated liquid into a concentration bottle, and plugging a bottle plug at a bottle opening of the concentration bottle; s2, connecting the through hole of the bottle plug with an air extractor; s3, starting the air extractor, extracting air in the concentration bottle through the through hole of the bottle plug by the air extractor, extending the spiral groove from the outside of the concentration bottle to the inside of the concentration bottle around the axis of the bottle plug, enabling atmospheric air outside the concentration bottle to enter the inside of the concentration bottle from the outside of the concentration bottle through the spiral groove in the bottle plug, and generating spiral air in the concentration bottle; and S4, spirally stirring the liquid in the concentration bottle by the spiral gas to promote the volatilization of the solvent of the liquid to be concentrated. The concentration method disclosed by the invention is simple to operate and can effectively improve the liquid concentration efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of liquid concentration, in particular to a vacuum vortex concentration method. Background Art

[0002] The liquid concentration technologies currently used in the market mainly include vacuum vortex concentration and nitrogen blowing concentration. Compared with vacuum concentration, nitrogen blowing concentration is slower, especially when dealing with high boiling point solvents, its concentration effect is often not as good as vacuum concentration. In addition, the nitrogen blowing concentration process usually requires an additional heating step, which is not good for heat-sensitive liquids.

[0003] Existing vacuum concentration devices usually include components such as a vacuum pump, a closed container, a vortex generator and monitoring equipment. These components work together to accelerate the evaporation process of the solvent in a low-pressure environment and use the vortex effect to improve the concentration efficiency.

[0004] However, the existing vacuum concentrators need to maintain a stable vacuum system and precise airflow control during use, and the operating conditions are relatively strict. In addition, when the vacuum concentrator has gas leakage or pressure fluctuations, it is easy to affect the liquid concentration effect, making the operation difficult. Summary of the invention

[0005] The object of the present invention is to provide a vacuum vortex concentration method which is easy to operate and can effectively improve the concentration effect of liquid.

[0006] To achieve the above-mentioned purpose, the solution of the present invention is: a vacuum vortex concentration method, which relates to a concentration device, the concentration device comprises a concentration bottle for containing a liquid to be concentrated, a bottle stopper and a suction device, the bottle stopper is provided with a spiral groove and a through hole, and the spiral groove is arranged around the axis of the bottle stopper. The concentration method comprises the following steps:

[0007] S1: Put the liquid to be concentrated into the concentration bottle and plug the bottle stopper into the bottle mouth of the concentration bottle;

[0008] S2: Connect the through hole of the bottle stopper to the air extraction device;

[0009] S3: starting the exhaust device, which extracts gas from the inside of the concentrate bottle through the through hole of the bottle plug, and the spiral groove extends from the outside of the concentrate bottle around the axis of the bottle plug to the inside of the concentrate bottle, and the atmospheric gas outside the concentrate bottle enters the inside of the concentrate bottle from the outside of the concentrate bottle through the spiral groove on the bottle plug, and generates spiral gas inside the concentrate bottle;

[0010] S4: The spiral gas performs spiral stirring on the liquid in the concentration bottle to promote the volatilization of the solvent of the liquid to be concentrated.

[0011] Preferably, in step S1, the height of the bottle stopper is greater than the height of the bottle mouth of the concentrate bottle.

[0012] Preferably, in step S2, the through hole is arranged along the axial direction of the bottle stopper.

[0013] Preferably, in step S2, the through hole is arranged at the axial position of the bottle stopper.

[0014] Preferably, in step S2, an exhaust pipe is fixedly provided on the through hole, and the exhaust pipe is connected to the exhaust device.

[0015] Preferably, in step S2, the air extraction device is an air extraction pump.

[0016] Preferably, in step S3, the spiral groove is formed on the outer surface of the bottle stopper.

[0017] Preferably, in step S3, an inclined surface is formed between the groove wall and the groove bottom of the spiral groove.

[0018] Preferably, in step S3, the widths of the spiral grooves are evenly distributed.

[0019] Preferably, in step S3, the width of the spiral groove outside the concentration bottle is greater than the width of the spiral groove inside the concentration bottle.

[0020] After adopting the above scheme, the beneficial effect of the present invention is that: the present invention sets the bottle plug with spiral grooves and through holes at the bottle mouth of the concentration bottle, and uses the exhaust device to connect with the through hole of the bottle plug, and the structure is simple. When the exhaust device extracts the gas inside the concentration bottle, there will be a pressure difference between the inside and outside of the concentration bottle, and the atmospheric gas outside the concentration bottle will enter the inside of the concentration bottle through the spiral groove and produce spiral gas to spirally stir the liquid in the concentration bottle, which is simple to operate, does not need to strictly control the gas environment of the concentration bottle, and can effectively improve the liquid concentration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the liquid before concentration in an embodiment of the present invention;

[0022] Figure 2 is a schematic diagram of liquid concentration in an embodiment of the present invention;

[0023] Figure 3 is a schematic diagram of a liquid after concentration in an embodiment of the present invention;

[0024] Figure 4 is a schematic diagram of an embodiment of the present invention in which an air extraction pipe is arranged on a bottle stopper;

[0025] Figure 5 is a schematic diagram of another angle in which the air extraction tube is arranged on the bottle stopper in an embodiment of the present invention;

[0026] Figure 6is a front view of an embodiment of the present invention in which an air extraction tube is arranged on a bottle stopper;

[0027] Figure 7 yes Figure 3 Sectional view along AA direction.

[0028] Description of labels:

[0029] 1. Concentration bottle; 2. Bottle stopper; 20. Spiral groove; 21. Through hole; 3. Vacuum tube. DETAILED DESCRIPTION

[0030] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0031] This embodiment provides a vacuum vortex concentration method, which involves a concentration device such as Figures 1 to 7 As shown, the concentrating device comprises a concentrating bottle 1 for containing a liquid to be concentrated, a bottle stopper 2 and a pumping device, the bottle stopper 2 is provided with a spiral groove 20 and a through hole 21, and the spiral groove 20 is arranged around the axis of the bottle stopper 2. The concentrating method comprises the following steps:

[0032] S1: Put the liquid to be concentrated into the concentration bottle 1 and plug the bottle stopper 2 into the bottle mouth of the concentration bottle 1;

[0033] S2: Connect the through hole 21 of the bottle stopper 2 to the air extraction device;

[0034] S3: starting the exhaust device, which extracts the gas inside the concentrate bottle 1 through the through hole 21 of the bottle plug 2, and the spiral groove 20 extends from the outside of the concentrate bottle 1 around the axis of the bottle plug 2 to the inside of the concentrate bottle 1. The atmospheric gas outside the concentrate bottle 1 enters the inside of the concentrate bottle 1 from the outside of the concentrate bottle 1 through the spiral groove 20 on the bottle plug 2, and generates spiral gas inside the concentrate bottle 1;

[0035] S4: The spiral gas performs spiral stirring on the liquid in the concentration bottle 1 to promote the volatilization of the solvent of the liquid to be concentrated.

[0036] In this embodiment, Figures 1 to 3 As shown, when the vacuum device extracts the gas inside the concentration bottle 1, a pressure difference will be generated between the inside and outside of the concentration bottle 1. At this time, the external atmospheric gas introduced through the spiral groove 20 will form a spiral gas flow inside the concentration bottle 1. This flow can effectively stir the liquid to be concentrated. Compared with the traditional stirring method, this spiral gas stirring can mix the liquid more evenly, avoid local overheating or crystallization, and is conducive to uniform concentration, which is particularly suitable for multi-component solutions. The effect of spiral stirring accelerates the process of solvent evaporation, thereby improving the concentration efficiency.

[0037] This embodiment avoids the complicated mechanical stirring structure in the traditional concentration equipment by providing a threaded groove on the bottle stopper 2. The structure is simple, and no special control of the gas environment in the concentration bottle 1 is required, so it is easy to operate.

[0038] In step S1, Figure 1 As shown, the height of the bottle stopper 2 is greater than the height of the bottle mouth of the concentrate bottle 1. On the one hand, a tighter sealing structure can be formed, which is more convenient when connecting the vacuum device, and the operator can more easily grab the bottle stopper 2 and perform the connection operation. On the other hand, the height of the bottle stopper 2 exceeds the bottle mouth, ensuring that the atmospheric gas can smoothly enter the interior of the concentrate bottle 1 through the spiral groove 20 on the bottle stopper 2.

[0039] Furthermore, in step S2, the through hole 21 is arranged along the axial direction of the bottle stopper 2, so that when the vacuum device extracts the gas inside the concentration bottle 1, the flow direction of the gas is perpendicular to the liquid surface, reducing interference with the atmospheric gas entering from the spiral groove 20, and the design is ingenious.

[0040] In step S2, Figure 7 As shown, the through hole 21 is arranged at the axial position of the bottle stopper 2, so that the gas extraction device can extract the gas in the central area of ​​the concentration bottle 1, and the flow direction of the gas is perpendicular to the liquid surface, which minimizes the interference with the atmospheric gas entering from the spiral groove 20, and is conducive to the atmospheric gas forming a spiral gas flow inside the concentration bottle 1, thereby improving the concentration efficiency. In addition, the gas extraction device extracts the gas in the central area inside the concentration bottle 1 and the atmospheric gas outside the concentration bottle 1 enters the concentration bottle 1 through the spiral groove 20 at the same time.

[0041] In step S2, Figures 4 to 7 As shown, the through hole 21 is fixedly provided with an exhaust pipe 3, and the exhaust pipe 3 is connected to the exhaust device (not shown in the figure), which makes the connection of the exhaust device more convenient and can effectively ensure the sealing to prevent gas leakage at the connection.

[0042] Furthermore, in step S2, the air extraction device is an air extraction pump, and the air extraction pump can adopt an existing device for easy use and replacement.

[0043] In step S3, Figures 4 to 7 As shown, the spiral groove 20 is provided on the outer surface of the bottle stopper 2. The spiral groove 20 extends from the outside of the concentrate bottle 1 around the axis of the bottle stopper 2 to the inside, and can guide the external atmospheric gas to enter the inside of the concentrate bottle 1 in a spiral manner, thereby enhancing the stirring effect, ensuring that the gas is evenly distributed in the concentrate bottle 1, and improving the uniformity and efficiency of the concentration. Providing the spiral groove 20 on the outer surface of the bottle stopper 2 makes the processing simpler, reduces the manufacturing cost, and is conducive to the cleaning and maintenance of the bottle stopper 2 in the later stage, thereby ensuring the stability of the equipment. Of course, in other embodiments, the spiral groove 20 can also be provided inside the bottle stopper 2.

[0044] Furthermore, in step S3, an inclined surface is formed between the groove wall and the groove bottom of the spiral groove 20. The inclined surface design can reduce the resistance of the gas when it flows in the spiral groove 20, and more effectively guide the external gas to enter the interior of the concentration bottle 1 in a spiral manner. Of course, in other embodiments, the spiral groove 20 can also be processed in a conventional manner so that the groove wall is perpendicular to the groove bottom.

[0045] In step S3, Figure 7 As shown, the width of the spiral groove 20 is evenly distributed. The spiral groove 20 with uniform width can ensure that the external gas is distributed in a more stable and uniform manner when entering the interior of the concentration bottle 1. Moreover, the spiral groove 20 with uniform width is easier to realize during processing and manufacturing, reducing the production difficulty and cost.

[0046] Furthermore, in other embodiments, the width of the spiral groove 20 outside the concentrate bottle 1 is greater than the width of the spiral groove 20 inside the concentrate bottle 1, and the width tends to gradually decrease. This arrangement makes the flow rate of the gas faster after entering the concentrate bottle 1, thereby increasing the speed of the spiral stirring, which is suitable for liquids with high viscosity or containing a large amount of solids, and the design is ingenious.

[0047] The directional terms mentioned in this specification are defined relative to the structures shown in the drawings. They are relative concepts and may change accordingly according to different locations and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0048] The above description is only a preferred embodiment of the present invention and is not a limitation on the design of this case. Any equivalent changes made based on the design key of this case shall fall within the protection scope of this case.

Claims

1. A vacuum vortex concentration method, characterized in that: A concentrating device is provided, which comprises a concentrating bottle for containing a liquid to be concentrated, a bottle stopper and a gas extraction device, wherein a spiral groove and a through hole are provided on the bottle stopper, and the spiral groove is arranged around the axis of the bottle stopper. The concentrating method comprises the following steps: S1: Put the liquid to be concentrated into the concentration bottle and plug the bottle stopper into the bottle mouth of the concentration bottle; S2: Connect the through hole of the bottle stopper to the air extraction device; S3: starting the exhaust device, which extracts gas from the inside of the concentrate bottle through the through hole of the bottle plug, and the spiral groove extends from the outside of the concentrate bottle around the axis of the bottle plug to the inside of the concentrate bottle, and the atmospheric gas outside the concentrate bottle enters the inside of the concentrate bottle from the outside of the concentrate bottle through the spiral groove on the bottle plug, and generates spiral gas inside the concentrate bottle; S4: The spiral gas performs spiral stirring on the liquid in the concentration bottle to promote the volatilization of the solvent of the liquid to be concentrated.

2. A vacuum vortex concentration method according to claim 1, characterized in that: In the step S1, the height of the bottle stopper is greater than the height of the bottle mouth of the concentrate bottle.

3. A vacuum vortex concentration method according to claim 1, characterized in that: In step S2, the through hole is arranged along the axial direction of the bottle stopper.

4. A vacuum vortex concentration method according to claim 1, characterized in that: In step S2, the through hole is arranged at the axial position of the bottle stopper.

5. A vacuum vortex concentration method according to claim 1, characterized in that: In the step S2, an air extraction pipe is fixedly provided in the through hole, and the air extraction pipe is connected to the air extraction device.

6. A vacuum vortex concentration method according to claim 1, characterized in that: In step S2, the air extraction device is an air extraction pump.

7. A vacuum vortex concentration method according to claim 1, characterized in that: In step S3, a spiral groove is formed on the outer surface of the bottle stopper.

8. A vacuum vortex concentration method according to claim 1, characterized in that: In the step S3, an inclined surface is formed between the groove wall and the groove bottom of the spiral groove.

9. A vacuum vortex concentration method according to claim 1, characterized in that: In step S3, the widths of the spiral grooves are evenly distributed.

10. A vacuum vortex concentration method according to claim 1, characterized in that: In the step S3, the width of the spiral groove outside the concentration bottle is greater than the width of the spiral groove inside the concentration bottle.

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