CN214634185U

CN214634185U - Liquid-liquid extraction instrument

Info

Publication number: CN214634185U
Application number: CN202120171534.6U
Authority: CN
Inventors: 李莎; 范能全; 张璞; 韩海燕; 蒲道俊; 余春梅; 雷智棋
Original assignee: Chongqing Institute for Food and Drug Control
Current assignee: Chongqing Institute for Food and Drug Control
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2021-11-09
Anticipated expiration: 2031-01-21

Abstract

The utility model discloses a liquid-liquid extraction appearance, including fixing the separating funnel on the workstation, insert first solvent pipe and second solvent pipe in the separating funnel, first solvent pipe has connected gradually first accurate flow pump and first liquid storage pot, the second solvent pipe has connected gradually accurate flow pump of second and second liquid storage pot. The utility model discloses can reduce experimenter and organic solvent's direct contact, improve extraction efficiency.

Description

Liquid-liquid extraction instrument

Technical Field

The utility model relates to an extraction appearance especially relates to a liquid-liquid extraction appearance.

Background

Liquid-liquid extraction is a sample pretreatment mode, and is a process for separating and extracting components in a mixture by using a solvent. The method is widely applied to the fields of medicine, food, environment, commodity inspection, chemical industry and the like.

At present, the conventional liquid-liquid chemical extraction method is oscillation extraction or hand extraction by using a separating funnel, the two methods have low extraction efficiency and high labor intensity, and meanwhile, the organic solvent used in the extraction process can hurt the health of experimenters.

Therefore, those skilled in the art are devoted to develop a liquid-liquid extractor, which reduces the direct contact between the experimenter and the organic solvent and improves the extraction efficiency.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defect of prior art, the utility model aims to solve the technical problem that a liquid-liquid extraction appearance is provided, reduces the direct contact of experimenter and organic solvent, improves extraction efficiency.

In order to achieve the above object, the utility model provides a liquid-liquid extraction appearance, including fixing the separating funnel on the workstation, insert first solvent pipe and second solvent pipe in the separating funnel, first solvent pipe has connected gradually first accurate flow pump and first liquid storage pot, the second solvent pipe has connected gradually accurate flow pump of second and second liquid storage pot.

The solvent is added into the separating funnel through precise flow, so that direct contact between experimenters and the organic solvent is reduced, and personal injury is reduced. And the solvent is added through a precise flow pump, so that the addition amount is accurately controlled, and the extraction efficiency is high.

Further, still insert the air pipe in the separating funnel, the air duct gas outlet is close to the separating funnel bottom, the air pipe still is connected with the air pump.

The air passes through the air hose and gets into separating funnel bottom oscillates separating funnel's solution, reduces experiment experimenter's intensity of labour, and solution mixing efficiency is high.

Furthermore, a cover is installed at the top of the separating funnel, and the first solvent pipe, the second solvent pipe and the air pipe respectively penetrate through the through holes in the cover and are fixed.

The cover is mainly used for fixing the solvent tube and preventing the collision of the solvent tube and the separating funnel when air is introduced to oscillate the solution.

Furthermore, a vent pipe and a pure water pipe are inserted into the separating funnel, the vent pipe and the pure water pipe respectively penetrate through the through hole in the cover and are fixed, and the pure water pipe is sequentially connected with a water pump and a water storage tank.

The pure water pipe is used for cleaning the separating funnel, and the vent pipe ensures that the separating funnel and the external air flow are smooth.

Furthermore, install a plurality ofly on the workstation separating funnel, be provided with a plurality of branch pipes respectively on first solvent pipe, second solvent pipe, air pipe and the pure water pipe and insert to corresponding in the separating funnel.

Solvent, air and pure water get into each separating funnel again after each branch pipe distribution, install simultaneously a plurality ofly separating funnel can once carry out extraction experiment many times, improves experimental efficiency.

Furthermore, the separating funnel is fixed on the workbench through a spring clamp. Separating funnel passes through the spring clamp to be fixed on the workstation, be convenient for separating funnel dismantles.

The utility model has the advantages that: the utility model adds solvent into the separating funnel through the precise flow pump, thus reducing the direct contact between the experimenter and the solvent; the addition amount of the solvent can be accurately controlled by a compact flow pump, and the extraction efficiency is high; and air is introduced into the separating funnel to oscillate the solvent, so that the mixing efficiency is high, and the extraction efficiency is further improved.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural view of a precision flow pump and a liquid storage tank according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of a separating funnel according to an embodiment of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples, wherein it is noted that, in the description of the invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular manner, and therefore should not be construed as limiting the present invention. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "communicating" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 3, a liquid-liquid extraction apparatus includes a separating funnel 2 fixed on a worktable 1, wherein in one implementation, the separating funnel 2 is fixed on the worktable 1 through a spring clamp 15, and the separating funnel 2 is fixed on the worktable 1 through the spring clamp 15, so that the separating funnel 2 can be taken down in time. In this embodiment, install a plurality of separating funnel 2 on the workstation 1, install a plurality of separating funnel 2 and can carry out extraction experiment many times simultaneously, improve experimental efficiency.

A first solvent pipe 3 and a second solvent pipe 6 are inserted into the separating funnel 2, the first solvent pipe 3 is sequentially connected with a first precise flow pump 4 and a first liquid storage tank 5, the second solvent pipe 6 is sequentially connected with a second precise flow pump 7 and a second liquid storage tank 8, and the precise flow pumps can adopt high-precision flow pumps produced by HNPM company.

Still insert air pipe 9 in separating funnel 2, air pipe 9 gas outlet is close to separating funnel 2 bottoms, and air pipe 9 still is connected with air pump 10, and air is blown into to separating funnel 2 bottoms through air pump 10 for the solvent automatic oscillation need not the laboratory staff manual rocking.

A cover 16 is installed at the top of the separating funnel 2, the first solvent pipe 3, the second solvent pipe 6 and the air pipe 9 respectively penetrate through holes in the cover 16 and are fixed, and in the solution oscillation process, the separating funnel 2 is prevented from colliding and knocking with the solvent pipes, so that instruments are damaged. The separating funnel 2 is also inserted with a vent pipe 14 and a pure water pipe 11, the vent pipe 14 and the pure water pipe 11 respectively pass through a through hole on the cover 16 and are fixed, the pure water pipe 11 is sequentially connected with a water pump 12 and a water storage tank 13, the water storage tank 13 is used for storing pure water and automatically cleaning the separating funnel 2. A plurality of branch pipes are arranged on the first solvent pipe 3, the second solvent pipe 6, the air pipe 9 and the pure water pipe 11 respectively and are inserted into the corresponding separating funnels 2, the solvent, the air and the pure water are distributed through the branch pipes and then enter the separating funnels 2, and the separating funnels 2 are used for extraction experiments, so that the experiment efficiency is improved.

The utility model discloses the theory of operation: during the use, through automatic control device (not shown in the figure) accurate control let in separating funnel 2 in the dosage of first solvent and second solvent, let in the air to separating funnel 2 bottom through air pipe 9 afterwards, the automatic shock of the mixed solvent in separating funnel, extraction reduce the direct contact of experimenter and solvent, improve extraction efficiency. In order to facilitate the cleaning of the separating funnel 2, a pure water pipe 11 is also arranged in the separating funnel 2 in a penetrating way.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides a liquid-liquid extraction appearance which characterized by: the device comprises a separating funnel (2) fixed on a workbench (1), wherein a first solvent pipe (3) and a second solvent pipe (6) are inserted into the separating funnel (2);

the first solvent pipe (3) is sequentially connected with a first precise flow pump (4) and a first liquid storage tank (5), and the second solvent pipe (6) is sequentially connected with a second precise flow pump (7) and a second liquid storage tank (8).

2. The liquid-liquid extractor of claim 1, wherein: an air pipe (9) is also inserted into the separating funnel (2), and the air outlet of the air pipe (9) is close to the bottom of the separating funnel (2);

the air pipe (9) is also connected with an air pump (10).

3. The liquid-liquid extractor of claim 1 or 2, wherein: a cover (16) is installed at the top of the separating funnel (2), and the first solvent pipe (3), the second solvent pipe (6) and the air pipe (9) respectively penetrate through holes in the cover (16) and are fixed.

4. The liquid-liquid extractor of claim 3, wherein: the separating funnel (2) is also inserted with a gas permeable pipe (14) and a pure water pipe (11), and the gas permeable pipe (14) and the pure water pipe (11) respectively penetrate through the through hole on the cover (16) and are fixed;

the pure water pipe (11) is sequentially connected with a water pump (12) and a water storage tank (13).

5. The liquid-liquid extractor of claim 4, wherein: install a plurality ofly on workstation (1) separating funnel (2), be provided with a plurality of branch pipes respectively on first solvent pipe (3), second solvent pipe (6), air pipe (9) and pure water pipe (11) and insert to corresponding in separating funnel (2).

6. The liquid-liquid extractor of claim 4, wherein: the separating funnel (2) is fixed on the workbench (1) through a spring clamp (15).