Anti-bumping and solvent splashing device for rotary evaporator

Abstract

The utility model discloses a kind of anti-explosion boiling and solvent splashing device for rotary evaporator, it is related to the technical field of rotary evaporator auxiliary equipment, including shell, condenser interface, rotary bottle interface, feeding valve pipe sleeve pipe and several four feet baffle, the condenser interface and rotary bottle interface are respectively opened in shell both ends, the feeding valve pipe sleeve pipe is located in shell middle part, and several four feet baffle are located between shell and feeding valve pipe sleeve pipe;In the technical scheme provided by the utility model, by setting shell, condenser interface, rotary bottle interface, feeding valve pipe sleeve pipe and several four feet baffle, specifically, staggered arrangement and concave four feet baffle can buffer explosive boiling liquid flow, intercept splashing liquid, cooperate with higher condenser interface to guide steam to flow smoothly to condenser, avoid liquid mixing.

Description

Technical Field

[0001] This utility model relates to the technical field of rotary evaporator auxiliary equipment, and in particular to a device for preventing explosion and solvent splashing in rotary evaporators. Background Technology

[0002] Rotary evaporators are core equipment in chemical, pharmaceutical, and biological experiments and production, and are widely used in solvent concentration, sample separation, and solvent recovery. Their working principle involves creating a thin film through rotation of the flask, lowering the solvent's boiling point through a negative pressure environment, and achieving efficient evaporation in conjunction with heating.

[0003] However, in practical applications, when the temperature control accuracy of the heating module is off or the solvent composition is uneven, the local temperature rises suddenly, causing the solvent to vaporize instantly and produce explosive boiling. The system vacuum level is suddenly adjusted, and the boiling point of the solvent drops sharply, causing violent boiling. In addition, when there are easily foaming components or high viscosity samples, the bursting of bubbles can easily cause liquid to splash, thus easily leading to explosive boiling and solvent splashing problems. Therefore, improvements are needed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a device for preventing boiling over and solvent splashing in rotary evaporators. This device addresses the problems in the prior art where local temperature rises suddenly due to deviations in the temperature control accuracy of the heating module or uneven solvent composition, leading to instantaneous vaporization of the solvent and causing boiling over; sudden adjustments in the system vacuum, causing a sharp drop in the solvent boiling point and triggering violent boiling; and the problem that when the sample contains easily foaming components or high viscosity samples, the bursting of bubbles can easily cause liquid splashing, thus easily leading to boiling over and solvent splashing.

[0005] In view of this, the present invention provides a device for preventing explosion and solvent splashing in a rotary evaporator, comprising a shell, a condenser interface, a rotary flask interface, a feed valve sleeve, and several four-legged baffles. The condenser interface and the rotary flask interface are respectively opened at both ends of the shell, the feed valve sleeve is located in the middle of the shell, and the several four-legged baffles are located between the shell and the feed valve sleeve.

[0006] Optionally, both the condenser interface and the rotary bottle interface are connected to the interior of the housing, and the height of the condenser interface is higher than the height of the rotary bottle interface.

[0007] Optionally, a number of the four-legged baffles are arranged linearly on the inner side of the housing, and the foot positions of the several four-legged baffles are arranged alternately in pairs.

[0008] Optionally, the plane of the four-legged baffle relative to the condenser interface end is concave.

[0009] Optionally, the housing includes an outer shell, a first semi-circular inner shell, a second semi-circular inner shell, a port sealing plate, and a fixing ring. The first and second semi-circular inner shells are fitted inside the outer shell. The fixing ring is threaded to one end of the outer shell. The port sealing plate is fixedly installed at one end of the outer shell by the fixing ring.

[0010] Optionally, the outer diameters of the first and second semicircular inner shells match the inner diameter of the outer shell.

[0011] Optionally, the condenser interface is located on one side of the port sealing plate, and several of the four-legged baffles are respectively fixedly connected to the inner sides of the first semicircular inner shell and the second semicircular inner shell.

[0012] As can be seen from the above technical solutions, the embodiments of this utility model have the following advantages: 1. This utility model provides a device for preventing boiling over and solvent splashing in a rotary evaporator. It consists of a shell, a condenser interface, a rotary bottle interface, a feed valve sleeve, and several four-legged baffles. Specifically, the staggered and concave four-legged baffles can buffer the boiling liquid flow and intercept splashing liquid. Combined with the higher condenser interface, it guides the steam to flow smoothly to the condenser and prevents liquid from mixing in.

[0013] 2. This utility model provides a device for preventing explosion and solvent splashing in a rotary evaporator. By setting a detachable shell, specifically, the detachable structure facilitates the disassembly and cleaning of the semi-circular inner shell and the replacement of the four-legged baffles. The threaded fixing ring facilitates the disassembly of the port sealing plate for maintenance, making it convenient to use.

[0014] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of a partial structure at one end of the present invention; Figure 3 This is a schematic diagram of the inner structure of one end of the present invention; Figure 4 This is an exploded view of the shell structure of this utility model.

[0016] Explanation of reference numerals in the attached drawings: 1. Shell; 101. Outer shell; 102. First semi-circular inner shell; 103. Second semi-circular inner shell; 104. Port sealing plate; 105. Fixing ring; 2. Condenser interface; 3. Rotary bottle interface; 4. Feed valve sleeve; 5. Four-legged baffle. Detailed Implementation

[0017] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0018] The following describes in detail, with reference to the accompanying drawings, an embodiment of the present invention for preventing explosion-proof boiling and solvent splashing in a rotary evaporator. Example

[0019] For easier understanding, please refer to Figures 1 to 4 This utility model provides an embodiment of an anti-boiling and solvent splashing device for a rotary evaporator, comprising a housing 1, a condenser interface 2, a rotary flask interface 3, a feed valve sleeve 4, and several four-legged baffles 5. The condenser interface 2 and the rotary flask interface 3 are respectively located at both ends of the housing 1. The feed valve sleeve 4 is located in the middle of the housing 1. Several four-legged baffles 5 are located between the housing 1 and the feed valve sleeve 4. Both the condenser interface 2 and the rotary flask interface 3 are connected to the interior of the housing 1. The height of the condenser interface 2 is higher than the height of the rotary flask interface 3. Several four-legged baffles 5 are arranged linearly on the inside of the housing 1, and the feet of the several four-legged baffles 5 are arranged alternately in pairs. The plane of the four-legged baffles 5 relative to the condenser interface 2 is concave.

[0020] It should be noted that, firstly, the height difference between the condenser interface 2 and the rotary flask interface 3 is designed based on the physical characteristic that "vapor density is lower than liquid density". This design guides the solvent vapor to flow smoothly upwards along the inside of the shell 1 to the condenser, while preventing unvaporized liquid (or droplets generated by boiling) from directly entering the condenser due to gravity, thus ensuring the purity of the condensed and recovered solvent. Secondly, several four-legged baffles 5 can form a multi-layered interception barrier inside the shell 1. When boiling causes liquid flow impact or solvent splashing, the staggered baffles can block the straight-line movement path of the liquid, preventing the liquid from directly hitting the inner wall of the shell 1 and rebounding into the condenser. The feed valve sleeve 4 located in the middle of the shell 1 is used to install the feed valve of the rotary evaporator, facilitating the replenishment of materials at any time during the experiment. Example

[0021] In some embodiments, such as Figure 4As shown, the housing 1 includes an outer shell 101, a first semi-circular inner shell 102, a second semi-circular inner shell 103, a port sealing plate 104, and a fixing ring 105. The first semi-circular inner shell 102 and the second semi-circular inner shell 103 are fitted inside the outer shell 101. The fixing ring 105 is threaded to one end of the outer shell 101. The port sealing plate 104 is fixedly installed at one end of the outer shell 101 by the fixing ring 105. The outer diameter of the first semi-circular inner shell 102 and the second semi-circular inner shell 103 matches the inner diameter of the outer shell 101. The condenser interface 2 is opened on one side of the port sealing plate 104. Several four-legged baffles 5 are respectively fixedly connected to the inner sides of the first semi-circular inner shell 102 and the second semi-circular inner shell 103.

[0022] It should be noted that the outer diameters of the first semi-circular inner shell 102 and the second semi-circular inner shell 103 match the inner diameter of the outer shell 101, ensuring that there are no obvious gaps inside the shell 1 after the two are fitted together, thus avoiding steam leakage or liquid retention. At the same time, the semi-circular split design allows the two inner shells to be directly removed from the outer shell 101, making it convenient to clean the inner walls of the inner shells and the four-legged baffles 5 fixed thereon.

[0023] Working principle: First, the shell 1 is sealed to the rotary evaporator flask via the rotary flask interface 3, and sealed to the rotary evaporator condenser via the condenser interface 2. The feed valve tube of the rotary evaporator is passed through the feed valve tube sleeve 4 in the middle of the shell 1 to complete the overall assembly, ensuring no leaks at any interface. The vacuum system and heating module of the rotary evaporator are then started. The rotary evaporator flask begins to rotate and is heated. The solvent inside the flask has a lower boiling point under negative pressure and gradually vaporizes to form solvent vapor. The vapor enters the shell 1 along the rotary evaporator flask, flows upward naturally, and finally enters the condenser to condense into liquid solvent for recovery. If the temperature control deviation of the heating module or uneven solvent composition causes localized boiling, the large amount of liquid generated instantaneously impacts the interior of the shell 1, resulting in a linearly arranged and... The staggered four-legged baffles 5 will first block the liquid flow. If the sample contains easily foaming components or high-viscosity substances, when the bubbles burst and cause solvent to splash, the multi-layer interception barrier formed by the four-legged baffles 5 can effectively capture the splashed droplets, causing the droplets to fall back to the rotary evaporator along the baffles, preventing them from entering the condenser with the steam and contaminating the recovered solvent. After the experiment, turn off the rotary evaporator and disassemble the shell 1 from the rotary evaporator and condenser; rotate the fixing ring 105 to remove the port sealing plate 104, and remove the first semi-circular inner shell 102 and the second semi-circular inner shell 103 from the outer shell 101. Clean the inner wall of the inner shell and the residual sample on the four-legged baffles 5. If the baffles are worn, the four-legged baffles 5 fixed on the inner shell can be directly replaced. After maintenance, they can be reassembled and used again.

[0024] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A device for preventing explosion and solvent splashing in a rotary evaporator, characterized in that: It includes a housing (1), a condenser interface (2), a rotary bottle interface (3), a feed valve sleeve (4), and several four-legged baffles (5). The condenser interface (2) and the rotary bottle interface (3) are respectively opened at both ends of the housing (1). The feed valve sleeve (4) is located in the middle of the housing (1), and several four-legged baffles (5) are located between the housing (1) and the feed valve sleeve (4).

2. The anti-boiling and solvent splashing device for a rotary evaporator according to claim 1, characterized in that: The condenser interface (2) and the rotating bottle interface (3) are both connected to the inside of the housing (1), and the height of the condenser interface (2) is higher than the height of the rotating bottle interface (3).

3. The anti-boiling and solvent splashing device for a rotary evaporator according to claim 1, characterized in that: Several of the four-legged baffles (5) are arranged linearly on the inside of the housing (1), and the feet of the several four-legged baffles (5) are arranged alternately in pairs.

4. The anti-boiling and solvent splashing device for a rotary evaporator according to claim 1, characterized in that: The plane of the four-legged baffle (5) is concave relative to the condenser interface (2).

5. The anti-explosion and anti-solvent splashing device for a rotary evaporator according to claim 1, characterized in that: The housing (1) includes an outer shell (101), a first semi-circular inner shell (102), a second semi-circular inner shell (103), a port sealing plate (104), and a fixing ring (105). The first semi-circular inner shell (102) and the second semi-circular inner shell (103) are sleeved inside the outer shell (101). The fixing ring (105) is threaded to one end of the outer shell (101). The port sealing plate (104) is fixedly installed at one end of the outer shell (101) by the fixing ring (105).

6. The anti-boiling and solvent splashing device for a rotary evaporator according to claim 5, characterized in that: The outer diameters of the first semicircular inner shell (102) and the second semicircular inner shell (103) match the inner diameter of the outer shell (101).

7. The anti-explosion and anti-solvent splashing device for a rotary evaporator according to claim 5, characterized in that: The condenser interface (2) is located on one side of the port sealing plate (104), and several of the four-legged baffles (5) are respectively fixedly connected to the inner sides of the first semi-circular inner shell (102) and the second semi-circular inner shell (103).

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