CN217887061U - Extraction unit, extraction module and extraction device - Google Patents
Extraction unit, extraction module and extraction device Download PDFInfo
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- CN217887061U CN217887061U CN202221763179.2U CN202221763179U CN217887061U CN 217887061 U CN217887061 U CN 217887061U CN 202221763179 U CN202221763179 U CN 202221763179U CN 217887061 U CN217887061 U CN 217887061U
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Abstract
The utility model provides an extraction unit, extraction module and extraction device relates to the solid-phase extraction field, an extraction unit, including the extraction post, the extraction unit still includes isolation valve and circulation pipeline, and the extraction post is provided with inlet and liquid outlet, and the isolation valve is two tee bend isolation valves, the access connection of liquid outlet and isolation valve, the first export of isolation valve pass through circulation pipeline with the inlet of extraction post or the inlet of another extraction post are connected, and the second export of isolation valve is used for the waste liquid of discharging. In this scheme, the liquid outlet of extraction column and the access connection of isolating valve to through the first exit linkage circulation pipeline at isolating valve can be connected with the inlet of extraction column, and then can return to the extraction column through circulation pipeline and circulate the extraction after the extraction is accomplished, can increase the time that solution stayed in the extraction column through the mode of circulation extraction under the condition that extraction column length does not change, and then can promote the extraction effect.
Description
Technical Field
The utility model relates to a solid phase extraction field, in particular to extraction unit, extraction module and extraction device.
Background
The solid phase extraction is a sample pretreatment technology developed based on the separation principle of selective adsorption and selective elution liquid chromatography, and is mainly used for separating, purifying and enriching samples. It is usually necessary to add the activating solution, the sample solution, the rinsing solution and the eluting solution to the solid phase extraction column in a certain order, and perform separation and enrichment of the target component in the solid phase extraction column. The adsorption principle of most heavy metal adsorbents is chemical adsorption, the adsorption is insufficient in conventional solid-phase extraction, target components are easy to elute, the retention time of sample solution in an extraction column is prolonged, and the adsorption effect of the target components is favorably improved.
In the prior art, for example, chinese patent publication No. CN2938063Y discloses a multi-column solid-phase extraction device, which uses an electric-driven motor to provide large power to push tens of pistons downward at a time, so as to achieve the purpose of pressurizing tens of solid-phase extraction columns at the same time, and can process tens to hundreds of samples at a time, but the retention time of a single sample solution in the extraction column is short, and the adsorption effect of the target component is poor.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an extraction unit, extraction module and extraction device in order to overcome the relatively poor defect of the target component adsorption effect of single sample solution of prior art.
The utility model discloses an above-mentioned technical problem is solved through following technical scheme:
the utility model provides an extraction unit, includes the extraction post, the extraction unit still includes isolating valve and circulation pipeline, the extraction post is provided with inlet and liquid outlet, the isolating valve is two tee bend isolating valves, the liquid outlet with the access connection of isolating valve, the first export of isolating valve is passed through the circulation pipeline with the inlet of extraction post or the inlet of another extraction post are connected, the circulation pipeline can be dismantled, the second export of isolating valve is used for the waste liquid of discharging.
In this scheme, the liquid outlet of extraction column and the access connection of isolating valve, and can be connected with the inlet of extraction column through the first exit linkage circulation pipeline at the isolating valve, and then solution can return to the extraction column through circulation pipeline and circulate the extraction after the extraction is accomplished, can be under the unchangeable condition of extraction column length, through the mode of circulation extraction, increase the time that solution stops in the extraction column, and then can promote the extraction effect, improve the adsorption effect of target component and can not make the volume of extraction unit too big.
Preferably, the extraction unit further comprises a fixing frame and a sealing joint, the sealing joint is arranged inside the fixing frame, the extraction column is fixed on the lower portion of the fixing frame, the tail end of the sealing joint is located inside a liquid inlet of the extraction column, and a liquid inlet channel is arranged inside the sealing joint.
In this scheme, sealing joint is inside to be provided with inlet channel, and sealing joint's end is located the inside of extraction post, at the extraction in-process, can increase the leakproofness of extraction post.
Preferably, the fixing frame comprises a bottom plate, a sealing plate and a fastener, the liquid inlet of the extraction column forms a flange protruding outwards in the radial direction, the bottom plate is provided with a mounting hole penetrating through the bottom plate, the extraction column penetrates through the mounting hole, the flange is clamped between the bottom plate and the sealing plate, and the fastener fixes the bottom plate and the sealing plate.
In this scheme, can be with the reliable fixing on the mount of extraction post through fastener.
Preferably, the sealing plate comprises a sealing gasket and a pressure plate, the sealing gasket is pressed on the bottom plate, the pressure plate is pressed on the sealing gasket, and the flange is clamped between the bottom plate and the sealing gasket.
In this scheme, sealed the extraction post that can fully seal up, pressure is not enough when can avoiding the extraction.
Preferably, the extraction unit further comprises a waste liquid tank into which the second outlet of the isolation valve discharges the waste liquid.
In this scheme, the waste liquid groove can collect the waste liquid of extraction in-process discharge, avoids causing the pollution.
Preferably, the extraction unit further comprises a conveying pipeline, and the conveying pipeline is connected with the liquid outlet and the inlet of the isolation valve.
In this scheme, be connected with the isolating valve through setting up pipeline, the position of isolating valve is set for more nimble.
Preferably, the extraction unit further comprises an isolation valve fixing plate, and the isolation valve is mounted on the isolation valve fixing plate.
Preferably, the extraction unit further comprises an isolation valve protection cover disposed at an outer circumferential side of the isolation valve for protecting the isolation valve.
In this scheme, the isolation valve protection casing can prevent that the isolation valve from being corroded by the extraction liquid in the extraction process.
Preferably, the utility model also provides an extraction module, its characterized in that, it includes a plurality of as above extraction unit, it is a plurality of extraction unit series connection, circulation pipeline includes middle circulation pipeline and terminal circulation pipeline, first is connected to middle circulation pipeline the first export of the isolation valve of extraction unit and next the inlet of extraction unit, terminal circulation pipeline is used for connecting last the first export and the first of the isolation valve of extraction unit the inlet of extraction unit.
In this scheme, can promote the extraction effect through the extraction unit that sets up a plurality of series connection.
Preferably, the utility model also provides an extraction device, its characterized in that, it includes a plurality of as above extraction module, it is a plurality of extraction module mutual independence.
In this scheme, through setting up a plurality of independent extraction modules, can extract a plurality of samples simultaneously.
The utility model discloses an actively advance the effect and lie in: in this scheme, the liquid outlet of extraction column and the access connection of isolating valve, and can be connected with the inlet of extraction column through the first exit linkage circulation pipeline at the isolating valve, and then solution can return to the extraction column through circulation pipeline and circulate the extraction after the extraction is accomplished, can be under the condition that extraction column length does not change, through the mode of circulation extraction, increase the time that solution dwelled in the extraction column, and then can promote the extraction effect, improve the adsorption effect of target component and can not make the volume of extraction unit too big.
Drawings
FIG. 1 is a schematic front view of an extraction unit of example 1 of the present invention;
FIG. 2 is a schematic diagram of a partial cross-sectional structure of an extraction unit in example 1 of the present invention;
fig. 3 is a schematic front view of an extraction module according to embodiment 2 of the present invention;
fig. 4 is a schematic perspective view of an extraction device according to embodiment 3 of the present invention.
Fixing frame 200
Inlet adapter 320
Liquid outlet adapter 330
Waste liquid tank 500
Fixing frame 610
Fastening device 800
Detailed Description
The present invention is further illustrated by way of the following examples, which are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1 and fig. 2, in the present embodiment, an extraction unit 10 is provided, which includes an extraction column 100, the extraction unit 10 further includes an isolation valve 400 and a circulation pipeline 900, the extraction column 100 is provided with a liquid inlet and a liquid outlet, the isolation valve 400 is a two-position three-way isolation valve 400, the liquid outlet is connected to an inlet 410 of the isolation valve 400, a first outlet 420 of the isolation valve 400 is connected to the liquid inlet of the extraction column 100 through the circulation pipeline 900, the circulation pipeline 900 is detachable, and a second outlet 430 of the isolation valve 400 is used for discharging waste liquid.
In this scheme, the liquid outlet of extraction column 100 is connected with the import 410 of isolating valve 400, and through the first export 420 at isolating valve 400 connect circulation pipeline 900 can be connected with the inlet of extraction column 100, and then solution can get back to extraction column 100 through circulation pipeline 900 and circulate the extraction after the extraction is accomplished, can be under the condition that extraction column 100 length does not change, through the mode of circulation extraction, increase the time that solution dwells in extraction column 100, and then can promote the extraction effect, improve the adsorption effect of target component and can not make the volume of extraction unit 10 too big.
Specifically, as shown in fig. 2, the extraction unit 10 further includes a fixing frame 610 and a sealing joint 310, the sealing joint 310 is disposed inside the fixing frame 610, the extraction column 100 is fixed at the lower portion of the fixing frame 610, the end of the sealing joint 310 is located inside a liquid inlet of the extraction column 100, a liquid inlet channel 315 is disposed inside the sealing joint 310, in this embodiment, the liquid inlet channel 315 is disposed inside the sealing joint 310, the end of the sealing joint 310 is located inside the extraction column 100, and in the extraction process, the sealing performance of the extraction column 100 can be improved.
Wherein, the fixing frame 610 is fixed by the supporting rod 250.
The fixing frame 610 includes a bottom plate 230, a sealing plate and a fastening member, a liquid inlet of the extraction column 100 forms a flange protruding outward in the radial direction, a mounting hole penetrating the bottom plate 230 is formed on the bottom plate 230, the extraction column 100 penetrates through the mounting hole, the flange is clamped between the bottom plate 230 and the sealing plate, the fastening member fixes the bottom plate 230 and the sealing plate, and the fastening device 800 may be a bolt. The extraction column 100 can be reliably fixed to the fixing frame 610 by the fastening device 800.
Wherein, the sealing plate includes sealed 220 and clamp plate 210, and sealed 220 is pressed on bottom plate 230, and clamp plate 210 is pressed on sealed 220, and the flange is pressed between bottom plate 230, sealed 220, and sealed 220 can be fully sealed extraction post 100, and the pressure is not enough when can avoiding extracting.
As shown in fig. 1 and 2, in this embodiment, the extraction unit 10 further includes a liquid inlet adapter 320, the liquid inlet adapter 320 passes through the pressure plate 210 in a threaded manner to communicate with the liquid inlet channel 315 inside the sealing adapter 310, and the liquid inlet adapter 320 is connected to the circulation pipeline 900.
In this embodiment, the extraction unit 10 further includes a conveying pipeline 700, the conveying pipeline 700 connects the liquid outlet and the inlet 410 of the isolation valve 400, and the position of the isolation valve 400 is more flexibly set by arranging the conveying pipeline 700 to be connected with the isolation valve 400.
As shown in fig. 1 and 2, in this embodiment, extraction unit 10 further includes a liquid outlet adapter 330, one end of liquid outlet adapter 330 is installed at the liquid outlet of extraction column 100, and the other end of liquid outlet adapter 330 is connected to conveying pipeline 700.
As shown in fig. 1, in this embodiment, the extraction unit 10 further includes a waste liquid tank 500, the second outlet 430 of the isolation valve 400 discharges waste liquid into the waste liquid tank 500, and the waste liquid tank 500 can collect waste liquid discharged during extraction, so as to avoid pollution.
Wherein the second outlet 430 may be connected to the waste liquid tank 500 through a pipe.
In this embodiment, the extraction unit 10 further comprises an isolation valve 400 fixing plate, and the isolation valve 400 is mounted on the isolation valve 400 fixing plate.
In this embodiment, the extraction unit 10 further comprises an isolation valve shield 620, the isolation valve shield 620 is disposed on the outer periphery of the isolation valve 400 for protecting the isolation valve 400, and the isolation valve shield 620 can prevent the isolation valve 400 from being corroded by the extraction liquid during the extraction process.
Example 2
The utility model also provides an extraction module 20, as shown in FIG. 3, extraction module 20 includes a plurality of extraction units 10 as embodiment 1, a plurality of extraction unit 10 series connections, circulation pipeline 900 includes middle circulation pipeline 910 and terminal circulation pipeline 920, middle circulation pipeline 910 connects the first export 420 of the isolation valve 400 of last extraction unit 10 and the inlet of next extraction unit 10, terminal circulation pipeline 920 is used for connecting the first export 420 of the isolation valve 400 of last extraction unit 10 and the inlet of first extraction unit 10.
In this scheme, can promote the extraction effect through setting up a plurality of extraction units 10 of establishing ties.
Example 3
The utility model also provides an extraction device 30, as shown in fig. 4, extraction device 30 includes a plurality of extraction modules 20 as above, a plurality of extraction modules 20 mutual independence.
In this scheme, through setting up a plurality of independent extraction modules 20, can extract a plurality of samples simultaneously.
Claims (10)
1. The utility model provides an extraction unit, includes the extraction column, its characterized in that, the extraction unit still includes isolating valve and circulation pipeline, the extraction column is provided with inlet and liquid outlet, the isolating valve is two tee bend isolating valve, the liquid outlet with the access connection of isolating valve, the first export of isolating valve passes through the circulation pipeline with the inlet of extraction column or the inlet of another extraction column are connected, the circulation pipeline can be dismantled, the second export of isolating valve is used for the waste liquid of discharging.
2. The extraction unit according to claim 1, wherein the extraction unit further comprises a fixing frame and a sealing joint, the sealing joint is arranged inside the fixing frame, the extraction column is fixed at the lower part of the fixing frame, the tail end of the sealing joint is positioned inside a liquid inlet of the extraction column, and a liquid inlet channel is arranged inside the sealing joint.
3. The extraction cell of claim 2, wherein the holder comprises a bottom plate, a sealing plate, and a fastening member, wherein the liquid inlet of the extraction column forms a flange protruding outward in the radial direction, the bottom plate is provided with a mounting hole penetrating through the bottom plate, the extraction column passes through the mounting hole, the flange is sandwiched between the bottom plate and the sealing plate, and the fastening member fixes the bottom plate and the sealing plate.
4. The extraction cell of claim 3 wherein said seal plate comprises a gasket and a pressure plate, said gasket bearing against said base plate, said pressure plate bearing against said gasket, said flange being sandwiched between said base plate and said gasket.
5. The extraction cell of claim 1, further comprising a waste tank, wherein the second outlet of the isolation valve discharges waste into the waste tank.
6. The extraction unit of claim 1, further comprising a transfer line connecting said liquid outlet and an inlet of said isolation valve.
7. The extraction cell of claim 1, further comprising an isolation valve securing plate, wherein the isolation valve is mounted on the isolation valve securing plate.
8. The extraction cell of claim 1 further comprising an isolation valve shield disposed on an outer peripheral side of said isolation valve for protecting said isolation valve.
9. An extraction module, comprising a plurality of extraction units according to any one of claims 1 to 8, wherein the plurality of extraction units are connected in series, the circulation pipeline comprises an intermediate circulation pipeline and a terminal circulation pipeline, the intermediate circulation pipeline is connected with a first outlet of an isolation valve of a previous extraction unit and a liquid inlet of a next extraction unit, and the terminal circulation pipeline is used for connecting a first outlet of an isolation valve of a last extraction unit and a liquid inlet of a first extraction unit.
10. An extraction apparatus comprising a plurality of extraction modules according to claim 9, wherein the plurality of extraction modules are independent of each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221763179.2U CN217887061U (en) | 2022-07-06 | 2022-07-06 | Extraction unit, extraction module and extraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221763179.2U CN217887061U (en) | 2022-07-06 | 2022-07-06 | Extraction unit, extraction module and extraction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217887061U true CN217887061U (en) | 2022-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221763179.2U Active CN217887061U (en) | 2022-07-06 | 2022-07-06 | Extraction unit, extraction module and extraction device |
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| Country | Link |
|---|---|
| CN (1) | CN217887061U (en) |
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2022
- 2022-07-06 CN CN202221763179.2U patent/CN217887061U/en active Active
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