Flask device for preventing bumping during reduced pressure distillation
By setting up a riot-proof boiling port and air conduit on the flask structure, the problem of oil sample boiling during the decompression distillation is solved, and the stability and success rate of the experiment are improved.
Patent Information
- Application Number
- CN202422085119.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-27
AI Technical Summary
In the prior art, oil samples are prone to boiling violently during the decompression distillation process, resulting in experimental failure and unstable results, and the uneven amount of zeolites leads to large differences in experimental results.
The flask structure is equipped with a riot boiling port and a vent pipe. The vent pipe extends into the bottle body through the bottle plug and contacts the bottom center of the bottle body to form a gasification center. The airtightness is strengthened through the matte mouth and the bottle plug, and the bubble size is vacuumed in the bottle to stabilize the liquid level.
Effectively prevent boiling during decompression distillation, improve the success rate of experiments, reduce artificial errors, and improve operational efficiency.
Smart Images
Figure CN223042752U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of reduced-pressure distillation flasks, and particularly relates to a flask device for preventing bumping during reduced-pressure distillation. Background Art
[0002] At present, domestic related measuring devices generally use zeolites to solve the bumping problem of oil samples. However, when continuously heating an overheated liquid, a sudden and violent boiling phenomenon will occur, and this phenomenon is called bumping. Superheat is a metastable state. Due to the fluctuation phenomenon inside the overheated liquid, molecules with sufficiently high energy in some places can push each other away to form extremely small bubbles. When the temperature of the overheated liquid is much higher than the boiling point, the saturated vapor pressure inside the small bubbles is higher than the external pressure, so the bubbles grow and expand rapidly, and even cause the explosion of industrial containers due to rupture. The reason why the liquid becomes overheated is that there is a lack of bubble formation nuclei in the liquid, and zeolites are often added to improve this bumping phenomenon.
[0003] However, during the process of using zeolites to test oil samples, due to excessive solid impurities, gases or dissolved gases in the liquid, the boiling point increases, the distillation device is unevenly heated, and the temperature gradient inside the container is too large, so the bumping phenomenon of many oil samples cannot be perfectly solved. Due to the bumping of the sample, the distillation temperature will be unstable and show large fluctuations. In addition, when performing a reduced-pressure distillation experiment on some oil samples, the bumping will also cause overshoot of the oil sample, resulting in the failure of the entire experiment, such as n-hexadecane. In addition, the standard does not stipulate the dosage of zeolites, and the amounts of zeolites put in by experimenters during experimental operations vary, which will also cause deviations in experimental results, and thus the experimental results will vary due to different experimenters.
[0004] Therefore, it is necessary to improve the flask structure to prevent bumping during reduced-pressure distillation. Summary of the Utility Model
[0005] In order to overcome the above defects of the prior art, the purpose of the utility model is to provide a flask device for preventing bumping during reduced-pressure distillation.
[0006] In order to achieve the purpose of the utility model, the technical solution adopted is:
[0007] A flask device for preventing bumping during reduced-pressure distillation, comprising:
[0008] A flask body, the flask body includes a bottle body structure and a conduit arranged at the upper end of the bottle body structure;
[0009] The conduit is a conduit structure with at least one arc-shaped channel;
[0010] A branch pipe is communicated beside the conduit above the arc-shaped channel;
[0011] An anti-bumping port is provided on the bottle wall of the bottle body structure. The anti-bumping port extends outward to form a gas guide tube, and a bottle stopper is provided at the mouth of the gas guide tube.
[0012] A gas guide tube passes through the bottle stopper and extends into the bottle body structure from the anti-bumping port.
[0013] In a preferred embodiment of the present invention, the inner wall of the anti-bumping port is provided with a frosted mouth.
[0014] In a preferred embodiment of the present invention, the gas guide tube passes through the bottle stopper and extends into the bottle body structure from the anti-bumping port and contacts the central position at the bottom of the bottle body structure. In a preferred embodiment of the present invention, the bottle body structure is spherical.
[0015] The beneficial effects of the present invention are as follows:
[0016] This device is mainly dedicated to solving the problem of oil bumping in vacuum distillation. By modifying the bottle body structure to solve the situation of oil bumping in the test, the success rate of the experiment is improved, the human factor error is reduced, and the work efficiency of the experimenters is enhanced. Description of the Drawings
[0017] Figure 1 is a schematic structure of the present invention Figure 1 .
[0018] Figure 2 is a schematic structure of the present invention Figure 2 . Detailed Embodiments
[0019] To make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the scope of the present invention. In addition, in the following structures, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.
[0020] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description. Instead of indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, it should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0021] ReferenceFigure 1 , such as Figure 1 A flask device for preventing bumping during vacuum distillation, as shown, includes a flask body 1 made of high-temperature resistant glass. The flask body 1 includes a spherical bottle body structure 11 for reaction and a conduit 12 for gas inlet and outlet provided at the upper end of the bottle body structure 11.
[0022] The conduit 12 is a conduit structure with an arc-shaped channel 121, and a branch pipe 13 is connected to the side of the conduit 12 above the arc-shaped channel 121.
[0023] The common method is to add zeolite into the flask body 1 to improve the bumping phenomenon during this reaction process.
[0024] In order to further optimize the problem that during the process of using zeolite to test oil samples, due to excessive solid impurities, gases or dissolved gas content in the liquid, the boiling point increases, the distillation device is unevenly heated, the temperature gradient inside the container is too large, and the bumping phenomenon of many oil samples cannot be perfectly solved, an anti-bumping port 111 is opened on the bottle wall of the bottle body structure 11. The anti-bumping port 111 extends outwards to form a ground glass port 300. A bottle stopper 200 is provided at the pipe orifice of the ground glass port 300. The gas guide pipe 100 passes through the bottle stopper 200 and extends into the bottle body structure 11 from the anti-bumping port. Specifically, the gas guide pipe 100 passes through the bottle stopper 200 and extends into the bottle body structure 11 from the anti-bumping port and contacts the center position of the bottom reaction surface of the bottle body structure 11, thus constructing a gasification center, which can better prevent bumping.
[0025] In order to enhance the airtightness at the bottle stopper 200, a ground glass layer is provided on the outer wall of the bottle stopper 200, and silicone grease is filled between the contact surface of the ground glass port 300 and the bottle stopper 200.
[0026] The gas guide pipe 100 includes glass capillary tubes, stainless steel capillary tubes, etc., and is not limited to glass capillary tubes and stainless steel capillary tubes.
[0027] The bottle stopper 200 can be a rubber stopper, a glass stopper, etc. If a glass stopper is used, the gas guide pipe 100 needs to be bonded to the glass stopper with high-temperature glue to prevent air leakage.
[0028] If a rubber stopper is used, only the gas guide pipe 100 needs to be aligned and passed through the center of the rubber stopper, and it is necessary to ensure that there is no air leakage.
[0029] Secondly, insert the above-assembled device into the ground glass opening 300. Vacuum grease can be applied on the wall of the ground glass opening to prevent air leakage. Adjust the length and position of the air duct 100 so that it is inserted into the central position at the inner bottom of the bottle structure 11. Finally, add 100 ml of liquid into the bottle structure 11 and conduct a vacuum treatment on the inside of the bottle structure 11. During this process, observe the bubbles generated by the air duct 100 at the bottom of the bottle structure 11 and adjust the inner diameter of the air duct 100 so that small bubbles can be evenly generated at the bottom of the bottle structure 11, ensuring that the liquid level can be kept relatively stable. On the premise of ensuring that small bubbles can be evenly generated at the bottom of the bottle structure 112, the vacuum value inside the bottle structure 11 should also reach the range required by the experiment.
[0030] Although the content of the present utility model has been introduced in detail through the above preferred embodiments, it should be recognized that the described description should not be considered as a limitation to the present utility model. After those skilled in the art have read the content, various modifications and substitutions to the present utility model will be obvious. Therefore, the scope of the present utility model should be defined by the appended claims.
Claims
1. A flask device for preventing bumping during vacuum distillation, characterized in that: include: A flask body, the flask body comprising a flask structure and a conduit arranged at the upper end of the flask structure; The conduit is a conduit structure with at least one arc-shaped channel; A branch pipe is connected to the side of the conduit above the arc-shaped channel; An anti-surge opening is provided on the bottle wall of the bottle body structure, and a bottle stopper is provided on the anti-surge opening; An air guide pipe passes through the bottle plug and extends from the anti-explosion opening into the bottle body structure.
2. A flask device for preventing bumping during vacuum distillation according to claim 1, characterized in that: The inner wall of the anti-explosion port is provided with a frosted port.
3. A flask device for preventing bumping during vacuum distillation according to claim 1, characterized in that: The air guide pipe passes through the bottle stopper and extends from the anti-explosion opening into the bottle body structure and contacts the center position of the bottom of the bottle body structure.