CN116351083A - Distillation sealing device suitable for laboratory - Google Patents
Distillation sealing device suitable for laboratory Download PDFInfo
- Publication number
- CN116351083A CN116351083A CN202310241357.8A CN202310241357A CN116351083A CN 116351083 A CN116351083 A CN 116351083A CN 202310241357 A CN202310241357 A CN 202310241357A CN 116351083 A CN116351083 A CN 116351083A
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- wall
- joint
- distillation
- pipe
- air bag
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- 238000004821 distillation Methods 0.000 title claims abstract description 29
- 238000007789 sealing Methods 0.000 title claims abstract description 25
- 230000007704 transition Effects 0.000 claims description 3
- 238000009833 condensation Methods 0.000 abstract description 10
- 230000005494 condensation Effects 0.000 abstract description 10
- 239000011521 glass Substances 0.000 description 3
- 238000009835 boiling Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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Classifications
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
A distillation sealing device suitable for laboratory is used for realizing good sealing between a distillation flask and a condensation pipe and between the condensation pipe and a receiving pipe. The connecting disc is of a circular ring structure, a first connecting pipe is fixed on the first end face of the connecting disc, a second connecting pipe is fixed on the second end face of the connecting disc, the first connecting pipe stretches into the first joint, and the second connecting pipe stretches into the second joint; first to third air bags, the first air bag is arranged between the first connecting pipe and the inner wall of the first joint, the second air bag is arranged between the connecting disc and the outer wall of the first joint, and the third air bag is arranged between the second connecting pipe and the inner wall of the second joint; the pressurizing cylinder is internally provided with a piston, the pressurizing cylinder is provided with a connector, and an air pipe is arranged between the connector and the first, second and third air bags. The invention can realize good sealing of distillation equipment.
Description
Technical Field
The invention relates to the technical field of distillation, in particular to a distillation sealing device suitable for a laboratory.
Background
Distillation is a thermodynamic separation process that utilizes the difference in boiling points of the components of a mixed liquid or liquid-solid system to vaporize the lower boiling components and recondensing to separate the entire components, a combination of both the vaporizing and condensing unit operations. Compared with other separation means, such as extraction, filtration crystallization, etc., it has the advantage that no other solvents than the system components are required, thereby ensuring that no new impurities are introduced. Distillation equipment commonly used in laboratories is provided with a distillation flask, a condensation pipe and a joint pipe, wherein the distillation flask and the condensation pipe and the joint pipe are directly connected together, and as the joints between the distillation flask and the condensation pipe and between the condensation pipe and the joint pipe are made of glass materials and are limited by processing precision, the joints between the distillation flask and the condensation pipe and the joints between the condensation pipe and the joint pipe have poor sealing.
Disclosure of Invention
The invention aims to provide a distillation sealing device suitable for a laboratory, which is used for realizing good sealing between a distillation bottle and a condensation pipe and between the condensation pipe and a receiving pipe.
The technical scheme adopted for solving the technical problems is as follows: a distillation seal suitable for use in a laboratory, comprising:
the connecting disc is of a circular ring structure, a first connecting pipe is fixed on the first end face of the connecting disc, a second connecting pipe is fixed on the second end face of the connecting disc, the first connecting pipe stretches into the first joint, and the second connecting pipe stretches into the second joint;
first to third air bags, the first air bag is arranged between the first connecting pipe and the inner wall of the first joint, the second air bag is arranged between the connecting disc and the outer wall of the first joint, and the third air bag is arranged between the second connecting pipe and the inner wall of the second joint;
the pressurizing cylinder is internally provided with a piston, the pressurizing cylinder is provided with a connector, and an air pipe is arranged between the connector and the first, second and third air bags.
Further, a connecting ring is fixed on the cylindrical outer wall of the connecting disc, the first connecting pipe is arranged on the inner side of the connecting ring, and the first connecting pipe and the connecting ring are concentrically arranged.
Further, the inner wall of the first air bag is fixed with the outer wall of the first connecting pipe in a contact manner.
Further, valves are arranged on the air pipes.
Further, the outer wall of the second air bag is fixed on the inner wall of the connecting ring.
Further, the inner wall of the third air bag is fixed with the outer wall of the second connecting pipe in a contact manner.
Further, the arc transition between the connecting disc and the connecting ring.
The beneficial effects of the invention are as follows: the distillation sealing device suitable for the laboratory is simple in structure, convenient to use and capable of enabling the first connector to be arranged at the first end of the connecting disc and enabling the second connector to be arranged at the second end of the connecting disc, enabling the conical tube to extend into the first connector and enabling the second connecting tube to extend into the second connector. And then the first to third air bags are inflated, at this time, the connection and sealing between the first and second joints are realized through the connecting disc, and the steam in the first joint passes through the first connecting tube, the connecting disc and the second connecting tube to enter the second joint.
Drawings
FIG. 1 is a schematic diagram of the connection between adjacent joints in a distillation experiment in the prior art;
FIG. 2 is a schematic view of the present invention in use;
FIG. 3 is a schematic view of the external shape of the present invention;
FIG. 4 is a schematic view of the internal structure of the present invention;
in the figure: the device comprises a first connector, a second connector, a 3 connecting disc, a 31 connecting ring, a 32 first connecting tube, a 33 conical tube, a 34 second connecting tube, a 4 first air bag, a 5 second air bag, a 6 third air bag, a 7 pressurizing cylinder, a 71 piston rod, a 72 connector and a 73 air tube.
Detailed Description
As shown in fig. 2 to 4, the present invention mainly includes a connection pad 3, a first connection tube 33, a second connection tube 34, a first air bag 4, a second air bag 5, a third air bag 6, and a pressurizing cylinder 7, and is described in detail below with reference to the accompanying drawings.
As shown in fig. 1, in the distillation experiment connection mode in the prior art, two adjacent devices are connected together in a plugging manner, for example, a second connector 2 (such as a condensing tube) is inserted into a first connector 1 (such as a distillation bottle) to realize connection between the two adjacent devices (the condensing tube and the distillation bottle). At this time, the first joint and the second joint are glass pieces, and the problem of poor contact exists between the first joint and the second joint due to the processing technology, so that steam leaks during distillation.
As shown in fig. 2 and 3, the connecting disc 3 is a plastic piece or a glass piece with a circular ring structure, a connecting ring 31 is fixed at a first end of the connecting disc, the connecting ring is fixed with a cylindrical side wall of the connecting disc in a contact manner, and the arc transition is formed at the contact point of the connecting disc and the connecting ring. A first connecting tube 32 fixedly connected with the first end face of the connecting disc is arranged on the inner side of the connecting ring, and the first connecting tube and the connecting ring are concentrically arranged. The end of the first connecting pipe is provided with a conical pipe 33 which is of a conical structure, and the conical pipe and the first connecting pipe are integrated into a whole and can be manufactured in an integrated manner. The conical tube is used for extending into the inner side of the first joint to be in contact with the inner wall of the first joint.
A second connecting tube 34 is fixed to the second end face of the connecting disc, the first connecting tube having an inner diameter greater than the outer diameter of the second connecting tube. The second connecting pipe is used for extending into the second joint 2.
The conical tube is in contact with the inner wall of the first joint, but has a problem of poor contact, and has a problem of steam leakage during use.
In order to realize the sealing between the first connecting pipe and the first joint and between the second connecting pipe and the second joint, the invention is also provided with a sealing unit. The sealing unit comprises a first air bag 4, a second air bag 5, a third air bag 6 and a pressurizing cylinder 7, wherein the first air bag, the second air bag and the third air bag are of annular structures, as shown in fig. 2 and 4, the inner wall of the first air bag is fixed with the outer wall of the first connecting pipe in a contact manner, after the first air bag is filled with air, the outer wall of the first air bag is in contact with the inner wall of the first connector and is tightly pressed, and at the moment, the first air bag realizes the sealing between the connecting ring and the first connector. The outer wall of the second air bag 5 is fixed with the inner wall of the connecting ring in a contact way, the inner wall of the second air bag is contacted with the outer wall of the first joint and is tightly pressed after the second air bag is filled with air, and at the moment, the second air bag realizes the sealing between the connecting ring and the first joint. Under the effect of first, second gasbag, seal well between first joint and the connection pad, steam can not exist and leak the phenomenon, and during the installation, only need insert the conical tube in the first joint, then to first, second gasbag aerify can.
The third gasbag is also annular structure, and the inner wall of third gasbag is fixed with the outer wall contact of second connecting pipe, and the back is full of to the third gasbag, and the outer wall contact and the compaction of the inner wall contact of second joint of third gasbag, and then realizes the seal between second joint and the second connecting pipe through the third gasbag.
The first, second and third air bags have good heat resistance, the first, second and third air bags deflate after being deflated, the first air bag is clung to the outer wall of the first connecting pipe, the second air bag is clung to the inner wall of the connecting ring, and the third air bag is clung to the outer wall of the second connecting pipe.
In order to realize the inflation of the first, second and third air bags, the pressurizing cylinder 7 is of a cylindrical hollow structure, a piston rod 71 is arranged in the pressurizing cylinder, a piston is arranged on the piston rod, the piston is arranged in the pressurizing cylinder, the piston rod can be driven to move in the pressurizing cylinder when being pushed and pulled, a connector 72 is arranged on the pressurizing cylinder, an air pipe 73 is arranged between the connector and the first air bag, between the connector and the second air bag and between the connector and the third air bag, and a valve is arranged on each air pipe. When the air pump is used, the air in the pressurizing cylinder enters the first to third air bags by pushing the piston rod, so that the first to third air bags are filled with air, and sealing between the first connecting pipe and the first joint and sealing between the second connecting pipe and the second joint are realized.
The invention has simple structure and convenient use, and only needs to arrange the first joint at the first end of the connecting disc and the second joint at the second end of the connecting disc during operation, the conical tube stretches into the first joint, and the second connecting tube stretches into the second joint. And then the first to third air bags are inflated, at this time, the connection and sealing between the first and second joints are realized through the connecting disc, and the steam in the first joint passes through the first connecting tube, the connecting disc and the second connecting tube to enter the second joint.
Claims (7)
1. A distillation seal suitable for use in a laboratory, comprising:
the connecting disc is of a circular ring structure, a first connecting pipe is fixed on the first end face of the connecting disc, a second connecting pipe is fixed on the second end face of the connecting disc, the first connecting pipe stretches into the first joint, and the second connecting pipe stretches into the second joint;
first to third air bags, the first air bag is arranged between the first connecting pipe and the inner wall of the first joint, the second air bag is arranged between the connecting disc and the outer wall of the first joint, and the third air bag is arranged between the second connecting pipe and the inner wall of the second joint;
the pressurizing cylinder is internally provided with a piston, the pressurizing cylinder is provided with a connector, and an air pipe is arranged between the connector and the first, second and third air bags.
2. A distillation sealing device suitable for laboratory use according to claim 1, wherein a connecting ring is fixed to the cylindrical outer wall of the connecting disc, the first connecting tube being disposed inside the connecting ring and the first connecting tube being disposed concentrically with the connecting ring.
3. A distillation sealing device suitable for use in a laboratory as claimed in claim 1, wherein the first bladder inner wall is in contact fixed with the first connecting tube outer wall.
4. A distillation sealing device suitable for use in a laboratory according to claim 1 wherein a valve is provided on each of the air lines.
5. A distillation sealing device suitable for use in a laboratory as claimed in claim 1, wherein the outer wall of the second bladder is secured to the inner wall of the connecting ring.
6. A distillation sealing device suitable for use in a laboratory as claimed in claim 1, wherein the inner wall of the third bladder is in contact with the outer wall of the second connecting tube.
7. A distillation sealing device suitable for use in a laboratory as claimed in claim 2, wherein the connecting disc and the connecting ring are in a circular arc transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310241357.8A CN116351083A (en) | 2023-03-13 | 2023-03-13 | Distillation sealing device suitable for laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310241357.8A CN116351083A (en) | 2023-03-13 | 2023-03-13 | Distillation sealing device suitable for laboratory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116351083A true CN116351083A (en) | 2023-06-30 |
Family
ID=86927303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310241357.8A Pending CN116351083A (en) | 2023-03-13 | 2023-03-13 | Distillation sealing device suitable for laboratory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116351083A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116590116A (en) * | 2023-04-06 | 2023-08-15 | 徐州市检验检测中心 | Self-cleaning fermentation tank for microorganism laboratory |
-
2023
- 2023-03-13 CN CN202310241357.8A patent/CN116351083A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116590116A (en) * | 2023-04-06 | 2023-08-15 | 徐州市检验检测中心 | Self-cleaning fermentation tank for microorganism laboratory |
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