A closed distillation flask
By designing a closed distillation flask, the risk of transfer and leakage of stirring and distillation steps when distilling volatile or toxic substances in the laboratory is solved, and the simultaneous stirring and distillation in the same set of distillation flasks is achieved, improving the safety and efficiency of the test process.
Patent Information
- Application Number
- CN202421422993.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-06-21
AI Technical Summary
When distilling volatile or toxic substances in the laboratory, the fume hood has a small space and it is difficult to put into a larger stirring equipment, resulting in the substances being transferred between the two steps of stirring and distillation, which increases the risk of volatility and leakage.
A closed distillation flask is designed, including a removable distillation conduit and reservoir, controlling the input and output of substances through switches on the first and second branches, ensuring that the entire system remains closed before and after distillation.
It realizes simultaneous stirring and distillation in the same set of distillation flasks, reducing the risk of volatility and leakage of substances, and improving the safety and efficiency of the test process.
Smart Images
Figure CN222709693U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of distillation devices, in particular to a closed distillation bottle. Background Art
[0002] When distilling volatile or toxic substances in the laboratory, the operation is often carried out in a fume hood, and some substances need to be stirred before and after distillation. Due to the small space in the fume hood, it is difficult to place larger stirring equipment, and the substances or containers can only be transferred between the two test steps of stirring and distillation, which increases the risk of volatilization and leakage of the substances. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a closed distillation flask, which can process the two steps of stirring and distillation through the same distillation flask and prevent the leakage of volatile or toxic substances.
[0004] The utility model solves the technical problem by adopting the following technical solution: providing a closed distillation flask, comprising a distillation flask body with a bottle mouth opened at the top, the bottom of the distillation flask body being flat, a detachable distillation conduit being provided on the bottle mouth, a first branch pipe being arranged obliquely downward on one side of the distillation conduit, a second branch pipe being arranged obliquely upward on one side of the distillation flask body, switches for controlling the on and off of the branches being provided on the first branch pipe and the second branch pipe, a liquid reservoir being detachably mounted on the end of the second branch pipe, and a cork being provided at the top opening of the first branch pipe.
[0005] Preferably, the distillation bottle body and the distillation conduit are connected by ground glass.
[0006] Preferably, the switch is a glass door.
[0007] Preferably, a thermometer is installed in the cork.
[0008] Beneficial effects: 1. The utility model provides a closed distillation flask, into which the test substance is input through a liquid storage device, and the output is controlled by a switch on the first branch pipe. The entire distillation flask can be kept in a closed state, and when the device is removed before or after distillation, leakage of toxic and harmful gases can be prevented. Therefore, the utility model can be used in the distillation process of volatile toxic and harmful substances to ensure the safety of the test process; 2. The distillation flask is designed in sections and connected by glass ground mouths. After disassembly, it is convenient to clean the distillation bottle body and the distillation conduit separately; 3. The distillation bottle body has a flat bottom and can be placed on a magnetic stirrer with a heating function, so that stirring and heating steps can be performed simultaneously without transferring the distillation device, which helps to improve the solubility of the sample and the distillation efficiency; 4. A cork and a thermometer are arranged on the top of the distillation conduit, so the temperature in the bottle during distillation can be confirmed at any time. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1It is a schematic diagram of the structure of a closed distillation flask.
[0010] Among them, 1-thermometer; 2-cork; 3-switch; 4-distillation catheter; 5-distillation bottle; 6-flat bottom; 7-liquid storage container; 8-ground glass mouth; 9-first branch; 10-second branch.
[0011] The same reference numerals in the various drawings represent the same components. DETAILED DESCRIPTION
[0012] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.
[0013] like Figure 1 As shown, the utility model provides a closed distillation flask, including a fat-bellied distillation bottle body 5 with a bottle mouth opened at the top, the bottom of the distillation bottle body 5 is a flat bottom 6, a detachable distillation duct 4 is provided on the bottle mouth, a first branch pipe 9 arranged obliquely downward is provided on one side of the distillation duct 4, a second branch pipe 10 arranged obliquely upward is provided on one side of the distillation bottle body 5, the first branch pipe 9 and the second branch pipe 10 are both provided with switches 3 for controlling the on and off of the branches, a liquid reservoir 7 is detachably mounted on the end of the second branch pipe 10, and a cork 2 is provided at the top opening of the first branch pipe 9.
[0014] In a specific embodiment, the distillation bottle body 5 and the distillation conduit 4 are connected by a glass ground mouth 8, and the glass ground mouth 8 should ensure that the distilled gas does not leak during the distillation.
[0015] In a specific embodiment, the switch 3 is a glass valve, and the installation form of the glass valve can refer to the form of the separatory funnel in the prior art. The material of the valve can also be polytetrafluoroethylene. In other embodiments, the switch 3 can also be a controllable electric valve.
[0016] In a specific embodiment, the cork 2 is a perforated cork 2, a through hole is opened in the center of the perforated cork 2, a thermometer 1 is installed in the through hole, and the diameter of the through hole should be smaller than the thermometer 1 to avoid leakage of toxic substances during distillation.
[0017] The material of the liquid storage container 7 should not react with the substance to be distilled, and a glass triangular flask can be used, and the liquid outlet of the liquid storage container 7 should be able to be sealed and connected with the opening of the second branch pipe 10. In other embodiments, a liquid storage bag can also be used and sealed by tape.
[0018] The use steps of the utility model are as follows: first, place the toxic or volatile substance to be tested into the liquid reservoir 7; place the magnet equipped with the magnetic stirrer into the distillation flask through the bottle mouth; under the condition that all switches 3 are closed and the cork 2 is tightly plugged, connect the liquid reservoir 7 with the second branch pipe 10; open the switch 3 as needed to input the test substance into the distillation flask, and during the test process, the test substance can be input again through the liquid reservoir 7 at any time according to the situation; at the same time, the substance in the distillation flask can be distilled by the magnetic stirrer with heating function, and the output is controlled by the switch 3 arranged on the second branch pipe 10; after the test is completed, all switches 3 are closed, and the distillation flask is transferred to a designated place for cleaning.
[0019] The distillation conduit 4 can be unplugged during cleaning to prevent the cleaning effect from being affected by an excessively high bottleneck.
Claims
1. A closed distillation flask, comprising a distillation flask body with a bottle mouth opened at the top, the bottom of the distillation flask body is a flat bottom, characterized in that: A detachable distillation duct is provided on the bottle mouth, a first branch pipe arranged obliquely downward is provided on one side of the distillation duct, a second branch pipe arranged obliquely upward is provided on one side of the distillation bottle body, switches for controlling the on and off of the branches are provided on the first branch pipe and the second branch pipe, a liquid reservoir is detachably mounted on the end of the second branch pipe, and a cork is provided at the top opening of the first branch pipe.
2. A closed distillation flask according to claim 1, characterized in that: The distillation bottle body and the distillation conduit are connected by glass ground joints.
3. A closed distillation flask according to claim 1, characterized in that: The switch is a glass door.
4. A closed distillation flask according to claim 1, characterized in that: A thermometer is installed in the cork.