CN111760315A - Rotary evaporator - Google Patents
Rotary evaporator Download PDFInfo
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- CN111760315A CN111760315A CN202010565566.4A CN202010565566A CN111760315A CN 111760315 A CN111760315 A CN 111760315A CN 202010565566 A CN202010565566 A CN 202010565566A CN 111760315 A CN111760315 A CN 111760315A
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- Prior art keywords
- sleeve
- air duct
- elastic
- rotary evaporator
- sealing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/08—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping in rotating vessels; Atomisation on rotating discs
- B01D3/085—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping in rotating vessels; Atomisation on rotating discs using a rotary evaporator
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention relates to a rotary evaporator which comprises a base, a lifting seat, a distillation flask, a collecting bottle, a condenser, a rotary air guide pipe and a motor, wherein a sealing connecting sleeve is arranged between the rotary air guide pipe and the distillation flask, one end of the sealing connecting sleeve is sleeved at the end part of the rotary air guide pipe, the other end of the sealing connecting sleeve is sleeved at the bottle mouth of the distillation flask, a sealing ring is arranged in the sealing connecting sleeve, the sealing ring is arranged between the end part of the rotary air guide pipe and the bottle mouth of the distillation flask, and a locking sleeve for enabling the end part of the sealing connecting sleeve to close up is. According to the invention, the sealing connecting sleeve and the locking sleeve are arranged between the rotary air duct and the distillation flask, the sealing connecting sleeve can be closed by moving the locking sleeve, the bottle mouth of the distillation flask is tightly attached to the pipe orifice of the rotary air duct, and the connection stability and the sealing performance of the distillation flask and the rotary air duct are improved.
Description
Technical Field
The invention relates to the technical field of experimental instruments, in particular to a rotary evaporator.
Background
The rotary evaporator is a common instrument in the fields of chemistry, medicine, food, environmental detection and the like, is mainly used for continuously distilling a large amount of volatile solvents under the condition of reduced pressure, and can be used for separating and purifying reaction products particularly for distilling a receiving solution during concentration of an extraction liquid and chromatographic separation.
The present rotary evaporator, for example, chinese utility model patent with publication number CN204485338U discloses a rotary evaporator, including heating device, motor, support frame, four-way ball and retort, receiving flask, condensing equipment and liquid feeding valve, heating device includes electric heating jacket, heating pan and automatic water supply device, and in the electric heating jacket was located to the heating pan, one side of electric heating jacket was located to the automatic water supply device, and its shortcoming lies in that this rotary evaporator's retort passes through the clip and is connected with rotatory air duct, and sealing performance is relatively poor, produces easily and reveals.
Disclosure of Invention
The invention aims to provide a rotary evaporator, which solves the problem of poor connection sealing performance of a distillation flask and a rotary air duct.
The above object of the present invention is achieved by the following technical solutions: the utility model provides a rotary evaporator, includes base, lift seat, retort, receiving flask, condenser, rotatory air duct and motor, rotatory air duct sets up on the lift seat and rotates by motor drive, the lower extreme at rotatory air duct is connected to the retort, the upper end at rotatory air duct is connected to receiving flask and condenser, be provided with sealed adapter sleeve between rotatory air duct and the retort, the one end suit of sealed adapter sleeve is at the tip of rotatory air duct, and other end suit is in the bottleneck department of retort, be provided with the sealing washer in the sealed adapter sleeve, the sealing washer sets up between the tip of rotatory air duct and the bottleneck of retort, the outside of sealed adapter sleeve is provided with the lock sleeve that makes the tip binding off of sealed adapter sleeve.
Preferably, the sealing connecting sleeve comprises a fixed sleeve and an elastic sleeve, the elastic sleeve is composed of a plurality of elastic clamping pieces distributed circumferentially, the fixed sleeve is sleeved on the rotary air duct, the elastic sleeve is sleeved at the bottleneck of the distillation flask, and the sealing ring is arranged in the elastic sleeve.
Preferably, the locking sleeve is installed on the sealing connection sleeve in a threaded fit mode, and the locking sleeve moves between the fixed sleeve and the elastic sleeve by rotating the locking sleeve.
Preferably, a movable sleeve is further arranged in the sealing connection sleeve, is sleeved at the bottleneck of the distillation flask and is movably arranged in the elastic sleeve.
Preferably, the outer wall of the bottle opening of the distillation bottle is provided with a raised convex ring, the movable sleeve is provided with a clamping groove matched with the convex ring, and the convex ring is clamped in the clamping groove.
Preferably, a compaction structure is arranged between the elastic sleeve and the movable sleeve, and the compaction structure drives the movable sleeve and the distillation flask to move towards the direction close to the rotary air duct when the elastic sleeve is closed.
Preferably, the pressing structure comprises a first pressing surface and a second pressing surface, the first pressing surface is arranged on the outer side of the movable sleeve, the end part of the elastic clamping piece is provided with an abutting part, and the second pressing surface is arranged on the abutting part and abuts against the first pressing surface.
Preferably, the first pressing surface is a conical surface, the diameter of the first pressing surface gradually increases from the elastic sleeve to the fixed sleeve, and the second pressing surface is an inclined surface matched with the conical surface.
Preferably, the sealing ring is an elastic rubber ring, and an annular cavity is arranged in the sealing ring.
The invention has the beneficial effects that: according to the invention, the sealing connecting sleeve and the locking sleeve are arranged between the rotary air duct and the distillation flask, the sealing connecting sleeve can be closed by moving the locking sleeve, the bottle mouth of the distillation flask is tightly attached to the pipe orifice of the rotary air duct, and the connection stability and the sealing performance of the distillation flask and the rotary air duct are improved.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the installation of the rotary airway and the distillation flask in an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a cross-sectional view of the active sheath of the embodiment of FIG. 2;
in the figure: 1-base, 2-lifting seat, 3-distillation flask, 301-convex ring, 4-collection flask, 5-condenser, 6-motor, 7-rotary air duct, 8-sealing connecting sleeve, 801-fixed sleeve, 802-elastic sleeve, 803-abutting part, 9-locking sleeve, 10-sealing ring, 1001-cavity, 11-movable sleeve, 1101-first abutting surface, 1102-clamping groove and 1103-sealing abutting surface.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Example (b): as shown in fig. 1 to 4, a rotary evaporator comprises a base 1, a lifting seat 2, a distillation flask 3, a collection bottle 4, a condenser 5, a rotary air duct 7 and a motor 6, wherein the lifting seat 2 is vertically fixed on the base 1, and the rotary air duct 7 is installed on the lifting seat 2 and driven by the motor 6 to rotate.
The collecting bottle 4 and the condenser 5 are arranged at the upper end of the rotary air duct 7 through a connecting joint, and the distillation bottle 3 is connected at the lower end of the rotary air duct 7. A sealing connecting sleeve 8 is arranged between the rotary air duct 7 and the distillation flask 3, one end of the sealing connecting sleeve 8 is sleeved on the end part of the rotary air duct 7, and the other end is sleeved on the bottleneck of the distillation flask 3.
As shown in fig. 2 and 3, the sealing connection sleeve 8 includes a fixed sleeve 801 and an elastic sleeve 802, and the elastic sleeve 802 is composed of a plurality of elastic clamping pieces circumferentially distributed at an end of the fixed sleeve 801. The inner diameter of the elastic sleeve 802 is larger than that of the fixed sleeve 801, and a limit step is formed between the two.
The fixed sleeve 801 and the elastic sleeve 802 are of an integrated structure, and the sealing connecting sleeve 8 is made of metal.
The fixed sleeve 801 is sleeved on the rotary air duct 7, and the elastic sleeve 802 is sleeved at the bottleneck of the distillation flask 3.
The outside of the sealing connecting sleeve 8 is provided with a locking sleeve 9 which enables the end part of the sealing connecting sleeve 8 to be closed, the locking sleeve 9 is installed on the sealing connecting sleeve 8 through thread fit, and the locking sleeve 9 moves between the fixed sleeve 801 and the elastic sleeve 802 through rotating the locking sleeve 9.
As shown in fig. 3 and 4, a movable sleeve 11 is arranged in the sealing connection sleeve 8, and the movable sleeve 11 is sleeved at the bottleneck of the distillation flask 3 and movably arranged in the elastic sleeve 802. The outer wall of the bottle opening of the distillation bottle 3 is provided with a convex ring 301, the movable sleeve 11 is provided with a clamping groove 1102 matched with the convex ring 301, and the convex ring 301 is clamped in the clamping groove 1102.
A compaction structure is arranged between the elastic sleeve 802 and the movable sleeve 11, and the compaction structure drives the movable sleeve 11 and the distillation flask 3 to move towards the direction close to the rotary air duct 7 when the elastic sleeve 802 is closed. The pressing structure comprises a first pressing surface 1101 and a second pressing surface, the first pressing surface 1101 is arranged on the outer side of the movable sleeve 11, the end portion of the elastic clamping piece is provided with a supporting portion 803, and the second pressing surface is arranged on the supporting portion 803 and is pressed against the first pressing surface 1101. The first pressing surface 1101 is a conical surface, the diameter of the first pressing surface 1101 gradually increases from the elastic sleeve 802 to the fixed sleeve 801, and the second pressing surface is an inclined surface matched with the conical surface.
A sealing ring 10 is arranged in the sealing connecting sleeve 8, the sealing ring 10 is arranged between the end part of the rotary air duct 7 and the bottle mouth of the distillation flask 3, and the sealing ring 10 is positioned in the elastic sleeve 802. The cross section of the sealing ring 10 is of a T-shaped structure, one part of the sealing ring 10 is clamped between the end part of the rotary air duct 7 and the bottle mouth of the distillation flask 3, one part of the sealing ring abuts against a limiting step between the fixed sleeve 801 and the elastic sleeve 802, and the other part of the sealing ring is positioned between the outer wall of the bottle mouth of the distillation flask 3 and the inner wall of the elastic sleeve 802 and abuts against the end part of the movable sleeve 11. Wherein the end of the movable sleeve 11 has a sealing abutting surface 1103 matching with the end of the sealing ring 10. The sealing ring 10 is an elastic rubber ring, and an annular cavity 1001 is provided in the sealing ring 10.
When the locking sleeve 9 moves from the fixed sleeve 801 to the elastic sleeve 802, the elastic sleeve 802 in a flaring shape is compressed and closed, so that the abutting part 803 and the movable sleeve 11 generate pressure, the movable sleeve 11 drives the distillation flask 3 to move towards the direction close to the rotary air duct 7 under the action of the first abutting surface 1101 and the second abutting surface, so that the sealing ring 10 is compressed and extends in the area between the outer wall of the bottle mouth of the distillation flask 3 and the inner wall of the elastic sleeve 802, so that the end part of the movable sleeve 11 is tightly abutted, and the end part of the rotary air duct 7 is fully sealed with the bottle mouth of the distillation flask 3.
Claims (9)
1. The utility model provides a rotary evaporator, includes base (1), lift seat (2), retort (3), receiving flask (4), condenser (5), rotatory air duct (7) and motor (6), rotatory air duct (7) set up on lift seat (2) and rotate by motor (6) drive, the lower extreme at rotatory air duct (7) is connected in retort (3), the upper end at rotatory air duct (7), its characterized in that are connected in receiving flask (4) and condenser (5): be provided with sealed adapter sleeve (8) between rotatory air duct (7) and retort (3), the one end suit of sealed adapter sleeve (8) is at the tip of rotatory air duct (7), and the bottleneck department at retort (3) is adorned to the other end suit, be provided with sealing washer (10) in sealed adapter sleeve (8), sealing washer (10) set up between the tip of rotatory air duct (7) and the bottleneck of retort (3), the outside of sealed adapter sleeve (8) is provided with lock sleeve (9) that make the tip binding off of sealed adapter sleeve (8).
2. A rotary evaporator according to claim 1 wherein: the sealing connecting sleeve (8) comprises a fixed sleeve (801) and an elastic sleeve (802), the elastic sleeve (802) is composed of a plurality of elastic clamping pieces distributed circumferentially, the fixed sleeve (801) is sleeved on the rotary air duct (7), the elastic sleeve (802) is sleeved at the bottle mouth of the distillation bottle (3), and the sealing ring (10) is arranged in the elastic sleeve (802).
3. A rotary evaporator according to claim 2 wherein: the locking sleeve (9) is installed on the sealing connecting sleeve (8) in a threaded fit mode, and the locking sleeve (9) moves between the fixed sleeve (801) and the elastic sleeve (802) by rotating the locking sleeve (9).
4. A rotary evaporator according to claim 2 wherein: the sealing connecting sleeve (8) is also internally provided with a movable sleeve (11), and the movable sleeve (11) is sleeved at the bottleneck of the distillation flask (3) and movably arranged in the elastic sleeve (802).
5. A rotary evaporator according to claim 4 wherein: the outer wall of the bottle opening of the distillation bottle (3) is provided with a convex ring (301), the movable sleeve (11) is provided with a clamping groove (1102) matched with the convex ring (301), and the convex ring (301) is clamped in the clamping groove (1102).
6. A rotary evaporator according to claim 4 or 5, wherein: a compaction structure is arranged between the elastic sleeve (802) and the movable sleeve (11), and the compaction structure drives the movable sleeve (11) and the distillation flask (3) to move towards the direction close to the rotary air duct (7) when the elastic sleeve (802) is closed.
7. A rotary evaporator according to claim 6 wherein: the pressing structure comprises a first pressing surface (1101) and a second pressing surface, the first pressing surface (1101) is arranged on the outer side of the movable sleeve (11), the end portion of the elastic clamping piece is provided with a supporting portion (803), and the second pressing surface is arranged on the supporting portion (803) and is pressed against the first pressing surface (1101).
8. A rotary evaporator according to claim 7 wherein: the first pressure bearing surface (1101) is a conical surface, the diameter of the first pressure bearing surface (1101) is gradually increased from the elastic sleeve (802) to the fixing sleeve (801), and the second pressure bearing surface is an inclined surface matched with the conical surface.
9. A rotary evaporator according to claim 1 wherein: the sealing ring (10) is an elastic rubber ring, and an annular cavity (1001) is arranged in the sealing ring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010565566.4A CN111760315A (en) | 2020-06-19 | 2020-06-19 | Rotary evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010565566.4A CN111760315A (en) | 2020-06-19 | 2020-06-19 | Rotary evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111760315A true CN111760315A (en) | 2020-10-13 |
Family
ID=72722745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010565566.4A Withdrawn CN111760315A (en) | 2020-06-19 | 2020-06-19 | Rotary evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111760315A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112991659A (en) * | 2021-03-18 | 2021-06-18 | 湖州星创生态科技有限公司 | Big data security monitoring management method with early warning processing function |
-
2020
- 2020-06-19 CN CN202010565566.4A patent/CN111760315A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112991659A (en) * | 2021-03-18 | 2021-06-18 | 湖州星创生态科技有限公司 | Big data security monitoring management method with early warning processing function |
| CN112991659B (en) * | 2021-03-18 | 2023-07-28 | 浙江赛龙建设科技有限公司 | Big data security monitoring management method with early warning processing function |
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| PB01 | Publication | ||
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Application publication date: 20201013 |