CN220877765U

CN220877765U - Vacuum concentration device

Info

Publication number: CN220877765U
Application number: CN202322652637.6U
Authority: CN
Inventors: 龚路淋; 罗晓杰
Original assignee: Sichuan Luzheng Testing Technology Co ltd
Current assignee: Sichuan Luzheng Testing Technology Co ltd
Priority date: 2023-09-28
Filing date: 2023-09-28
Publication date: 2024-05-03
Anticipated expiration: 2033-09-28

Abstract

The utility model provides a vacuum concentration device, and relates to the technical field of vacuum concentration. The vacuum concentration device comprises: a rotary evaporator and a sampling assembly arranged on a collecting bottle of the rotary evaporator; the sampling assembly includes: one end of the liquid discharge pipe is communicated with the collecting bottle, and the other end of the liquid discharge pipe is provided with a negative pressure joint; the first valve is arranged at one end of the liquid discharge pipe, which is close to the collecting bottle; the second valve is arranged at one end of the liquid discharge pipe close to the negative pressure joint, and a sampling area is formed between the first valve and the second valve; the sampling tube is communicated with the sampling area and is provided with a third valve; the negative pressure connector is communicated with an external negative pressure device and is used for extracting vacuum in the sampling area. According to the utility model, the sampling assembly arranged at the bottom of the collecting bottle is used for sampling the sample, and meanwhile, the sampling assembly can also be used for a medium-drain channel, so that the use safety of the collecting bottle is improved.

Description

Vacuum concentration device

Technical Field

The utility model relates to the technical field of vacuum concentration, in particular to a vacuum concentration device.

Background

The rotary evaporator is a common instrument and equipment in the fields of chemistry, medicine, food, environmental detection and the like, and is mainly used for continuously distilling a large amount of volatile solvents under the condition of reduced pressure.

In the water body detection process, the sample needs to be distilled and concentrated, and the existing rotary evaporator is inconvenient to take part of the sample for detection in the middle of the use process.

Disclosure of utility model

The utility model aims to solve the technical problems, and provides a vacuum concentration device which is used for sampling a sample through a sampling assembly arranged at the bottom of a collecting bottle, and meanwhile, the sampling assembly can also be used for a medium-drain channel, so that the use safety of the collecting bottle is improved.

The technical scheme adopted by the utility model is as follows:

a vacuum concentrating apparatus, comprising:

A rotary evaporator and a sampling assembly arranged on a collecting bottle of the rotary evaporator;

The sampling assembly includes:

One end of the liquid discharge pipe is communicated with the collecting bottle, and the other end of the liquid discharge pipe is provided with a negative pressure joint;

The first valve is arranged at one end of the liquid discharge pipe, which is close to the collecting bottle;

The second valve is arranged at one end of the liquid discharge pipe close to the negative pressure joint, and a sampling area is formed between the first valve and the second valve;

the sampling tube is communicated with the sampling area and is provided with a third valve;

The negative pressure connector is communicated with an external negative pressure device and is used for extracting vacuum in the sampling area.

Optionally, the drain pipe is communicated with the lowest part of the bottom of the collecting bottle.

Optionally, the collecting bottle and the liquid discharge pipe are of an integrally formed structure.

Optionally, the liquid draining pipe comprises a first pipeline, a second pipeline and a third pipeline which are sequentially connected, the diameter of the second pipeline is larger than that of the first pipeline and the third pipeline, the first pipeline is connected with the collecting bottle, and the first valve is arranged on the first pipeline; the third pipeline is connected with the negative pressure joint, and the second valve is arranged on the third pipeline; the sampling tube is arranged on the second pipeline.

Optionally, the sampling port of sampling tube slope downwards sets up, sampling port one end and the internal diameter phase-match of test tube of sampling tube.

Compared with the prior art, the utility model has the beneficial effects that:

1. When carrying out sample concentration in the laboratory, in order to make things convenient for the sample to take a sample in the collecting bottle midway, set up sampling assembly in the bottom of collecting bottle.

2. The sampling assembly can be used as a liquid discharge channel in the use process, and the sample in the collecting bottle is discharged through negative pressure.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of the overall structure of a vacuum concentrating apparatus.

Fig. 2 is a schematic view showing a partial structure of a cup body of the vacuum concentration apparatus.

FIG. 3 is a schematic diagram of a vacuum concentrator connected to a cartridge.

Reference numerals:

1. a collection bottle;

2. a sampling assembly; 21. a liquid discharge pipe; 211. a first pipe; 212. a second pipe; 213. a third conduit; 22. a negative pressure joint; 23. a first valve; 24. a second valve; 25. a sampling area; 26. a sampling tube; 27. and a third valve.

Detailed Description

Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships conventionally placed in use of the product of the present utility model, or orientations or positional relationships conventionally understood by those skilled in the art, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed.

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 and 3, an embodiment of the present utility model provides a vacuum concentration apparatus, including: a rotary evaporator and a sampling assembly 2 arranged on a collecting bottle 1 of the rotary evaporator. The sampling assembly 2 comprises: a drain pipe 21, a first valve 23, a second valve 24 and a sampling pipe 26; one end of the liquid discharge pipe 21 is communicated with the collecting bottle 1, and the other end of the liquid discharge pipe 21 is provided with a negative pressure joint 22. The first valve 23 is arranged at one end of the drain pipe 21 close to the collecting bottle 1, the second valve 24 is arranged at one end of the drain pipe 21 close to the negative pressure joint 22, and a sampling area 25 is formed between the first valve 23 and the second valve 24. The sampling tube 26 communicates with the sampling area 25, and a third valve 27 is provided on the sampling tube 26.

In use, the first valve 23 and the third valve 27 are in a closed state, the second valve 24 is in an open state, the sampling area 25 is evacuated by an external negative pressure device connected to the negative pressure connector 22, and then the third valve 27 is closed. The first valve 23 and the third valve 27 are opened, the sample in the collecting bottle 1 enters the sampling area 25 under the action of negative pressure, the first valve 23 is closed after the sample enters the sampling area 25, and then the second valve 24 is opened to avoid that the sampling area 25 is in a negative pressure state during sampling.

The negative pressure connector 22 is a connection pipe connected to a pipe of an external negative pressure device, and is connected to the external negative pressure device when in use.

During use, the total amount of the sample in the collecting bottle 1 can be controlled by the sampling assembly 2 (generally, the sample in the collecting bottle 1 is not generally higher than 50% of the volume of the sample), so that the condition that the connecting part of the collecting bottle 1 and the condensing tube is fallen off due to excessive sample in the collecting bottle 1 is avoided. When the excess sample is discharged, only the first valve 23 and the third valve 27 need be opened.

In another embodiment, the drain 21 is in communication with the bottom of the collection bottle 1 for the purpose of facilitating complete draining of the sample from the bottom of the collection bottle 1.

In another embodiment, in order to avoid the liquid leakage at the connection between the liquid discharge tube 21 and the collecting bottle 1, the collecting bottle 1 and the liquid discharge tube 21 are integrally formed.

In another embodiment, the liquid discharge pipe 21 includes a first pipe 211, a second pipe 212 and a third pipe 213 connected in sequence, the second pipe 212 has a larger diameter than the first pipe 211 and the third pipe 213, the first pipe 211 is connected to the collecting bottle 1, and the first valve 23 is disposed on the first pipe 211; the third pipeline 213 is connected with the negative pressure joint 22, and the second valve 24 is arranged on the third pipeline 213; the sampling tube 26 is disposed on the second conduit 212.

To facilitate drawing the sample in the collection bottle 1 into the sampling area 25, the diameter of the second conduit 212 is larger than the diameters of the first conduit 211 and the second conduit 212.

In another embodiment, the sampling port of the sampling tube 26 is inclined downward for facilitating the discharge of the aspirated sample into the test tube, and one end of the sampling port of the sampling tube 26 is matched with the inner diameter of the test tube.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A vacuum concentrating apparatus, comprising:

The sampling assembly includes:

2. The vacuum concentration device of claim 1 wherein the drain communicates with a bottom floor of the collection bottle.

3. The vacuum concentrating apparatus of claim 1 wherein the collection bottle and the drain tube are of unitary construction.

4. The vacuum concentration device of claim 1 wherein the drain comprises a first conduit, a second conduit, and a third conduit connected in sequence, the second conduit having a larger diameter than the first conduit and the third conduit, the first conduit being connected to the collection bottle, the first valve being disposed on the first conduit; the third pipeline is connected with the negative pressure joint, and the second valve is arranged on the third pipeline; the sampling tube is arranged on the second pipeline.

5. The vacuum concentration device of claim 1 wherein the sampling port of the sampling tube is disposed obliquely downward and one end of the sampling port of the sampling tube is matched with the inner diameter of the test tube.