CN216826271U

CN216826271U - Extraction device suitable for sample quick replacement

Info

Publication number: CN216826271U
Application number: CN202220496855.8U
Authority: CN
Inventors: 张轩; 杨涛; 王亦颿; 朱永红; 刘亚青; 杨帆; 陈黎翰; 陈林
Original assignee: Shaanxi Yanchang Petroleum Group Co Ltd
Current assignee: Shaanxi Yanchang Petroleum Group Co Ltd
Priority date: 2022-03-07
Filing date: 2022-03-07
Publication date: 2022-06-28
Anticipated expiration: 2032-03-07

Abstract

The utility model discloses an extraction device suitable for sample quick replacement, including the distillation flask, the distillation flask is placed on the temperature control heating cover, and an opening and condenser pipe lower extreme are connected on the distillation flask, and the liquid receiver lower extreme on the condenser pipe passes through the hose and links to each other through peristaltic pump and extraction section of thick bamboo upper end, and extraction section of thick bamboo lower extreme passes through the hose and links to each other through another opening of peristaltic pump and distillation flask upper end, forms extraction solvent circulation circuit, set up serpentine coil in the condenser pipe, the serpentine coil export is pressed from both sides the cover import through the hose and the glass of extraction section of thick bamboo and is linked to each other, forms heat transfer medium circulation route. The utility model discloses a with the mode that distillation operation and extraction operation separation set up, utilize the peristaltic pump to realize that solvent distillation and sample extraction can be simultaneously again the purpose of independent operation.

Description

Extraction device suitable for sample quick replacement

Technical Field

The utility model belongs to the technical field of the extraction separation, concretely relates to extraction device suitable for sample quick replacement.

Background

In the field of analysis of chemistry, biology and the like, when organic matters or solid-phase insoluble matters are analyzed, a sample to be detected needs to be extracted and separated, then detection and analysis are carried out, and a Soxhlet extractor is often used in the extraction and separation process. The Soxhlet extractor has the problems in the use process, firstly, under the condition that the number of processed sample batches is large, the Soxhlet extractor can only extract one sample, then the heating device is turned off, the temperature is reduced to the room temperature, then the next sample can be filled, the sample processing period is long, and secondly, because the extraction solvent is evaporated and then condensed in the extraction cylinder cavity in the extraction process, the temperature of the extraction agent is low, the extraction efficiency is reduced, and the extraction time of a single sample is prolonged. The prior patent partially solves the problems, but is not perfect. The idea of solving the problem of long extraction time of a single sample in patent CN 204073487U, patent CN 111167153a and patent CN 209188181U is to combine devices such as microwave and ultrasonic wave with a soxhlet extractor, and utilize microwave (ultrasonic wave) energy to apply energy to the extraction process to reduce the extraction time of a single sample, but the microwave (ultrasonic wave) generating device itself needs power consumption, and cannot achieve the purpose of energy saving. On solving the long problem of sample processing cycle time, patent CN 208865231U has reformed transform the soxhlet extractor, has set up the extraction solvent condenser pipe on the extractor body in the body side, and the position of condenser pipe originally can make things convenient for the sample to get at any time and put, nevertheless still will close the heater when getting the sample, cools off to the room temperature to prevent to have too much solvent steam to escape and cause the incident, lead to whole sample processing cycle time still longer.

Disclosure of Invention

In order to overcome the technical problem above, the utility model aims to provide an extraction device suitable for sample quick replacement through the mode that sets up distillation operation and extraction operation separation, utilizes the peristaltic pump to realize that solvent distillation and sample extraction can be simultaneously again the purpose of independent operation.

In order to realize the purpose, the utility model discloses a technical scheme is:

the utility model provides an extraction device suitable for sample quick replacement, includes distillation flask 10, distillation flask 10 is placed on temperature control heating jacket 11, and an opening and the 6 lower extremes of condenser pipe in distillation flask 10 upper end are connected, and 8 lower extremes of liquid receiver on the condenser pipe 6 pass through the hose and link to each other through peristaltic pump 4 and extraction section of thick bamboo 1 upper end, and extraction section of thick bamboo 1 lower extreme passes through the hose and links to each other through another opening of two 5 and the distillation flask 10 upper ends of peristaltic pump, form extraction solvent circulation circuit, set up serpentine coil 7 in the condenser pipe 6, serpentine coil 7 export links to each other through the 3 imports of hose and the glass clamp cover of extraction section of thick bamboo 1, forms heat transfer medium circulation route.

And a liquid receiver 8 on the condensation pipe 6 is used for condensing the solvent vapor into liquid for collection.

Condenser pipe 6 is the liquid condenser pipe, is the cavity between condenser pipe 6 and serpentine coil 7, and in serpentine coil 7 was walked to heat transfer medium, solvent vapor was in the cavity between condenser pipe 6 and serpentine coil 7.

The outer layer of the extraction cylinder 1 is provided with a glass jacket 3, the glass jacket 3 is provided with a liquid inlet and a liquid outlet, and a heat exchange medium is injected into the glass jacket 3 to heat the extraction cylinder 1.

The top of the extraction cylinder 1 is provided with a cylinder plug 2, the cylinder plug 2 is a glass frosted opening cylinder plug with a branch pipe, the cylinder plug 2 is provided with the branch pipe, and the branch pipe is connected with a hose.

The utility model has the advantages that:

this extraction device is through the mode that will distill the operation and extract the operation separation setting, utilizes the peristaltic pump to realize that solvent distillation and sample extraction can be simultaneously can the purpose of independent operation again, and the advantage that the mode of setting up brought like this is when carrying out the sample change, and distillation operation can also continue to go on, need not close the heating jacket and do not have the potential safety hazard, has reduced sample processing cycle time, can reduce whole extraction time greatly when handling a large amount of samples.

The extraction device introduces the cooling medium for heat exchange of the condensation pipe into the extraction barrel jacket, and heats the extraction barrel by utilizing the heat obtained by the heat exchange of the medium and the solvent vapor in the condensation pipe, thereby realizing the purposes of improving the extraction efficiency and recycling the heat, reducing the extraction time of a single sample, and simultaneously leading the whole device to have the advantage of energy conservation.

The peristaltic pump is arranged in the extraction device, so that the purpose of flexible operation is achieved, and the flow velocity of the extracting agent can be flexibly adjusted according to different extraction requirements, so that the whole device has great operation elasticity.

Drawings

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

In fig. 1: 1-extraction cylinder, 2-cylinder plug, 3-glass jacket, 4-peristaltic pump I, 5-peristaltic pump II, 6-condenser tube, 7-serpentine coil, 8-liquid receiver, 9-thermometer, 10-distillation flask, 11-temperature control heating jacket.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in figure 1, the extraction device of the utility model comprises an extraction cylinder 1 (with a glass jacket 3), a condensation pipe 6 (with a liquid receiver 8), a peristaltic pump 4 and a peristaltic pump 5, a distillation flask 10, a temperature control heating jacket 11 and hoses for connecting all devices. The whole structure of the extraction device is set by separating distillation operation and extraction operation, a distillation flask 10 is placed on a temperature control heating jacket 11, one port at the upper end of the distillation flask 10 is connected with the lower end of a condensation pipe 6, the lower end of a liquid receiver 8 on the condensation pipe 6 is connected with the upper end of an extraction cylinder 1 through a hose and a peristaltic pump I4, the lower end of the extraction cylinder 1 is connected with the other port at the upper end of the distillation flask 10 through a hose and a peristaltic pump II 5, an extraction solvent circulation loop is formed, the outlet of a serpentine coil 7 on the condensation pipe 6 is connected with the inlet of the extraction cylinder jacket through a hose, and a heat exchange medium circulation passage is formed.

The condensation pipe 6 is a condensation pipe with a liquid receiver 8, and can condense solvent vapor into liquid for collection.

The condenser pipe 6 is a liquid condenser pipe, a snakelike coil 7 is arranged in the condenser pipe, a heat exchange medium runs in the coil pipe, and solvent vapor is in a cavity between the condenser pipe and the coil pipe.

The extraction cylinder 1 is provided with an outer layer glass jacket 3, a liquid inlet and a liquid outlet are arranged on the jacket, and a heat exchange medium can be injected into the jacket to heat the extraction cylinder.

The cylinder plug 2 at the top of the extraction cylinder 1 is a glass frosted opening cylinder plug with a branch pipe, so that the opening is convenient, a sample can be taken and placed at any time, and meanwhile, the branch pipe on the cylinder plug 2 is convenient to be connected with a hose.

The peristaltic pump I4 and the peristaltic pump II 5 have the functions of adjusting the flow rate and starting and stopping at any time.

The heat exchange medium is a single medium or a mixed medium with high heat exchange performance such as water, glycol and the like.

The utility model discloses a theory of operation:

taking off the cylinder plug 2, placing the prepared sample into the extraction cylinder 1, covering the cylinder plug 2, setting the heating temperature of the temperature control heating jacket 11, and opening the heating switches of the condensed water and the temperature control heating jacket 11. The extraction solvent becomes steam through heating in the distillation flask 10, then rise to serpentine coil 7 department of condenser pipe 6, through the heat transfer with the comdenstion water, solvent vapor is condensed into the liquid drop and drops to in the liquid collector 8, when having certain liquid level in the liquid collector 8, open peristaltic pump 4 and set up certain velocity of flow and guarantee that there is the solvent in the solvent collector always, through the effect of peristaltic pump 4, the solvent flows out from the lower extreme of liquid collector 8 and gets into in extraction section of thick bamboo 1, begin to extract the sample, open peristaltic pump two 5 when the liquid level of extraction section of thick bamboo 1 does not have the sample, the velocity of flow that sets up peristaltic pump two 5 guarantees that the liquid level in the extraction section of thick bamboo 1 does not have the sample always, through the effect of peristaltic pump two 5, the solvent flows out from extraction section of thick bamboo 1 lower extreme after the extraction and gets back to the distillation flask 10 in, the solvent is again through evaporation separation circulation use after the extraction.

The comdenstion water gets into from the import of condenser pipe 6, carry out the heat transfer through serpentine coil 7 and solvent vapor, the export of following condenser pipe 6 flows after obtaining the heat, the import of glass jacket 3 lower parts on the reentrant extraction section of thick bamboo 1, heat extraction section of thick bamboo 1, the export outflow on glass jacket 3 upper portion at last, can set up the size of import comdenstion water flow in order to control the height of 1 heating temperature of extraction section of thick bamboo, under the prerequisite that does not introduce other energy sources, make full use of control by temperature change heating jacket 11's heat, reached energy-conserving purpose when promoting extraction efficiency.

If the sample needs to be replaced, the peristaltic pump I4 is only required to be shut down temporarily, the flow rate of the peristaltic pump II 5 is set to be the maximum, when all the solvent in the extraction cylinder 1 flows out, the cylinder plug 2 is opened, a new sample is put in after the old sample is taken out, the cylinder plug 2 is covered, then the peristaltic pump I4 is opened and the proper flow rate is set, the peristaltic pump II 5 is set to the proper flow rate, the new sample starts to be extracted, the temperature control heating sleeve 11 does not need to be shut down in the whole process, the solvent distillation is operated all the time, and the time required for replacing the sample is shortened.

Claims

1. The utility model provides an extraction device suitable for sample quick replacement, which comprises a distillation flask (10), distillation flask (10) are placed on control by temperature change heating jacket (11), and an opening and condenser pipe (6) lower extreme are connected in distillation flask (10) upper end, and liquid receiver (8) lower extreme on condenser pipe (6) passes through the hose and links to each other with extraction section of thick bamboo (1) upper end through peristaltic pump (4), and extraction section of thick bamboo (1) lower extreme passes through the hose and links to each other with another opening of distillation flask (10) upper end through peristaltic pump two (5), forms extraction solvent circulation circuit, set up serpentine coil (7) in condenser pipe (6), serpentine coil (7) export links to each other through hose and the glass jacket (3) import of extraction section of thick bamboo (1), forms heat transfer medium circulation route.

2. Extraction device suitable for rapid sample change according to claim 1, characterized in that the liquid receiver (8) on the condenser tube (6) is used to condense solvent vapour into liquid for collection.

3. The extraction device suitable for rapid sample exchange according to claim 1, wherein the condenser (6) is a liquid condenser, a cavity is formed between the condenser (6) and the serpentine coil (7), the heat exchange medium flows through the serpentine coil (7), and the solvent vapor flows through the cavity formed between the condenser (6) and the serpentine coil (7).

4. The extraction device suitable for rapid sample replacement according to claim 1, wherein a glass jacket (3) is arranged on the outer layer of the extraction cylinder (1), a liquid inlet and a liquid outlet are formed on the glass jacket (3), and a heat exchange medium is injected into the glass jacket (3) to heat the extraction cylinder (1).

5. The extraction device suitable for quick sample replacement according to claim 1, wherein a cylinder plug (2) is arranged at the top of the extraction cylinder (1), the cylinder plug (2) is a glass frosted cylinder plug with a branch pipe, and the cylinder plug (2) is provided with the branch pipe which is connected with a hose.