CN110975374A - A quick suction filter device for detecting low concentration heavy metal element - Google Patents
A quick suction filter device for detecting low concentration heavy metal element Download PDFInfo
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- CN110975374A CN110975374A CN201911338601.2A CN201911338601A CN110975374A CN 110975374 A CN110975374 A CN 110975374A CN 201911338601 A CN201911338601 A CN 201911338601A CN 110975374 A CN110975374 A CN 110975374A
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- suction filtration
- main body
- container main
- filtration container
- funnel
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- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 11
- 238000000967 suction filtration Methods 0.000 claims abstract description 98
- 238000007789 sealing Methods 0.000 claims abstract description 46
- 239000007788 liquid Substances 0.000 claims abstract description 45
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 2
- 238000005406 washing Methods 0.000 abstract 1
- 238000001914 filtration Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000000706 filtrate Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011085 pressure filtration Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/085—Funnel filters; Holders therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
A rapid suction filtration device for detecting low-concentration heavy metal elements comprises a plurality of funnels, a suction filtration container main body, a sealing cover, a plurality of liquid collection bottles and a vacuum pump; a plurality of liquid collecting bottles are arranged in the suction filtration container main body, an opening is formed in the upper part of the suction filtration container main body, and the opening is sealed by a sealing cover; a funnel pipe at the lower part of each funnel is inserted into the sealing cover, and the lower part of each funnel pipe extends into the liquid collecting bottle; the vacuum pump is connected with the suction filtration container main body through an exhaust pipe and a vacuum hose and used for generating negative pressure in the suction filtration container main body. This quick suction filter device can be the three sample of suction filtration simultaneously and removed the washing step of traditional buchner flask from, can show improvement suction filtration efficiency. Meanwhile, the filtered sample directly enters the liquid collecting bottle and cannot be polluted, so that the later test accuracy of the sample with low concentration of the heavy metal elements to be detected is higher.
Description
Technical Field
The invention relates to the technical field of filtering equipment, in particular to a rapid suction filtration device for detecting low-concentration heavy metal elements.
Background
In biological, chemical and other experiments, it is often necessary to filter liquids in order to obtain highly pure solutions or solids. Filtration is an operation in which liquid in a suspension permeates a medium and solid particles and other substances are retained by a filter medium under the action of a driving force or other external forces, so that the solids and other substances are separated from the liquid. In order to accelerate the liquid to permeate the medium, decompression filtration can be adopted, and the pressure in the filter flask is reduced by using an air pump, so that the aim of solid-liquid separation is fulfilled.
A commonly used suction filtration apparatus includes a buchner flask and a buchner funnel, and a vacuum pump is used to apply negative pressure to the buchner flask, so that the liquid on the buchner funnel is rapidly filtered and enters the buchner flask, and then the liquid in the buchner flask is collected. Because the bottle mouth of the Buchner flask is small and the connecting port on the side wall of the Buchner flask is small and exquisite in structure, when the Buchner flask is cleaned, the connecting port is very inconvenient to clean, and particularly, substances which are difficult to clean can affect the later filtering result; meanwhile, the traditional buchner funnel can only pump-filter one sample at a time, and when a plurality of samples need to be pumped-filtered, the timely cleaning of the buchner flask cannot be ensured, residual water can be left in the buchner flask cleaning at every time, and the low-concentration samples are subjected to pumping-filtering, so that the measurement result is greatly influenced. Therefore, only another buchner flask can be replaced to filter other samples, which inevitably results in the need to prepare more buchner flasks, increased cost and more cumbersome operation.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the rapid suction filtration device for detecting the low-concentration heavy metal elements, which is convenient to suction filter, can suction filter a plurality of samples simultaneously and does not need to be cleaned. In order to achieve the above object, the present invention provides the following technical solutions:
a rapid suction filtration device for detecting low-concentration heavy metal elements is characterized by comprising a plurality of funnels, a suction filtration container main body, a sealing cover, a plurality of liquid collection bottles and a vacuum pump;
a plurality of liquid collecting bottles are arranged in the suction filtration container main body, and the liquid collecting bottles are fixedly arranged at the bottom of the suction filtration container main body through clamps; the upper part of the suction filtration container main body is provided with an opening, and a sealing cover seals the opening; a funnel pipe at the lower part of each funnel is inserted into the sealing cover, and the lower part of each funnel pipe extends into the liquid collecting bottle;
the vacuum pump is connected with the suction filtration container main body through an exhaust pipe and used for generating negative pressure in the suction filtration container main body.
As a further limited technical scheme, the extraction pipe is hermetically connected with the suction filtration container main body; the opening of the suction filtration container main body is an inner tangent plane, a sealing rubber pad is attached to the surface of the inner tangent plane, and the peripheral side wall of the sealing cover is a plane matched with the inner tangent plane; the suction filtration container main body and the sealing cover enclose a closed space.
As a further limited solution, the funnel is a buchner funnel.
As a further limited technical solution, the suction pipe is a vacuum hose.
As a further limited technical scheme, a plurality of liquid collecting bottle arrangement positions are arranged in the suction filtration container main body, and each liquid collecting bottle arrangement position is limited by a plurality of clamps surrounding the arrangement position.
As a further limited technical scheme, a funnel pipe at the lower part of each funnel is correspondingly inserted into one hole on the sealing cover.
As a further limited technical solution, sealing oil is smeared in the holes.
As a further limited technical scheme, the opening is formed by smearing sealing oil between the inner tangent plane and the peripheral side wall of the sealing cover.
As a further limited technical scheme, 3 liquid collecting bottles are arranged in the suction filtration container main body, and 3 funnels are inserted into the sealing cover.
The application can obtain remarkable beneficial effects: the suction filtration container comprises a box-shaped suction filtration container main body, wherein three Buchner funnels can be mounted on a top cover of the suction filtration container main body, the top cover of the suction filtration container main body is hermetically connected with the funnels, and the three funnels can be simultaneously subjected to suction filtration; inside buchner funnel lower extreme stretched into the collector bottle, directly filtered the filtrating into the collector bottle, the exhaust tube is used for vacuum pump and sealing connection. The suction is finished on the suction filtration container main body, and the liquid collection bottle does not need to be provided with a suction structure, so that the liquid collection bottle does not need to be cleaned frequently, the suction filtration solution at the back is not polluted, and the replacement is convenient; the suction filtration container main body is only used for providing negative pressure, and filtrate can not enter the suction filtration container main body and does not need to be cleaned. The whole suction filtration device is convenient to use and clean, the suction filtration of three samples can be carried out simultaneously, and the situation of using the disposable liquid collecting bottle does not need to be cleaned, so that convenience is brought to test operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view of a rapid suction filtration device of the present invention;
graphic notation:
1. a funnel; 2. a suction filtration container main body; 3. a liquid collecting bottle; 4. a vacuum pump; 5. a sealing cover; 6. a seal ring; 7. a liquid collecting bottle fixing clamp; 8. an air exhaust pipe; 9. a vacuum hose; 10. and (7) a rubber pad.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
According to fig. 1, the rapid suction filtration apparatus for detecting low-concentration heavy metal elements of the present embodiment includes a plurality of funnels 1, a suction filtration container main body 2, a sealing cover 5, a plurality of liquid collection bottles 3, and a vacuum pump 4;
a plurality of the liquid collecting bottles 3, preferably 3 liquid collecting bottles, are arranged in the suction filtration container main body 2, and the liquid collecting bottles 3 are fixedly arranged at the bottom of the suction filtration container main body 2 through clamps 7; the upper part of the suction filtration container main body 2 is provided with an opening, and a sealing cover 5 seals the opening; a funnel pipe at the lower part of each funnel 1 is inserted into the sealing cover 5, and the lower part of the funnel pipe extends into the liquid collecting bottle 3;
the vacuum pump 4 is connected with the suction filtration container body 2 through an exhaust pipe 8 and an exhaust pipe 9 and used for generating negative pressure in the suction filtration container body 2.
The extraction pipe 8 is hermetically connected with the suction filtration container main body 2; the opening of the suction filtration container main body 2 is an inner tangent plane, a sealing rubber pad 10 is attached to the surface of the inner tangent plane, and the peripheral side wall of the sealing cover 5 is a plane matched with the inner tangent plane; and the suction filtration container body 2 and the sealing cover 5 enclose a closed space.
Funnel 1 is specifically selected to be a buchner funnel. The exhaust tube 9 is a vacuum hose.
A plurality of setting positions of the liquid collecting bottles 3 are arranged in the suction filtration container main body 2, and each setting position of the liquid collecting bottles 3 is limited by a plurality of clamps 7 surrounding the setting position. The funnel pipe at the lower part of each funnel 1 is correspondingly inserted into one hole on the sealing cover 5. And coating sealing oil in the holes. The opening is formed by smearing sealing oil between the inner tangent plane and the peripheral side wall of the sealing cover 5.
An embodiment under the laboratory condition does, provides a quick suction filtration device for detecting low concentration heavy metal element, the suction filtration device is including straight pipy suction filtration container body 2, suction filtration container body 2 side sets up exhaust tube 8, suction filtration container body 2's upper end lid trompil is used for 1 sealing connection with the funnel, the port stretches into collection liquid bottle 3 inside under the funnel, exhaust tube 9 is used for vacuum pump 4 and sealing connection.
In the suction filtration process, the suction tube is connected with the vacuum equipment, and the whole suction filtration device does not have the function of collecting filtrate, so that the filtrate or other substances easy to foam cannot leave from the suction tube, and the suction tube is prevented from being polluted.
In addition, even if sundries entering the exhaust pipe exist in use, the suction filtration container is in a box package, and the upper end cover can be directly opened, so that the suction filtration container is very convenient to clean.
The upper end cover 5 of the suction filtration container body is in seamless connection with the side wall of the suction filtration container body 2, and the connection surface is provided with a rubber pad, so that the suction filtration container body is kept airtight.
As shown in fig. 1, a rapid suction filtration device for detecting low-concentration heavy metal elements comprises a vacuum pump 4, a liquid collection bottle 3, a suction filtration container main body 2 and a funnel 1, wherein the funnel 1 is a buchner funnel, the suction filtration container main body 2 is box-shaped, and an exhaust tube 8 communicated with the vacuum pump 4 is arranged on the side wall of the suction filtration container main body; the Buchner funnel is hermetically inserted into an opening at the upper end of the upper end cover 5 of the suction filtration container main body, and the liquid collecting bottle 3 is fixed at the bottom of the suction filtration container main body.
The main structure of the suction filtration device mainly comprises three components: funnel 1, suction filtration container main part 2 and collecting bottle 3 constitute, buchner funnel takes filterable material for the holding, can lay filter paper or filter cloth, selects according to the condition of required filter material, buchner funnel and suction filtration container main part upper end lid 5 form sealing connection, suction filtration container main part inside forms airtight environment after covering the lid, exhaust tube 8 is connected with vacuum pump 4, and inside buchner funnel lower extreme stretched into collecting bottle 3, collecting bottle 3 collected the filtrating after being filtered by buchner funnel. Because the parts at suction filtration container main part 2 and both ends are sealing connection, extract the air through exhaust tube 8, cause buchner funnel's filter layer below to suction filtration container main part inside cavity formation negative pressure, form the negative pressure suction filtration to the material of buchner funnel filter layer top.
Because the air exhaust of the suction filtration device is directly acted on the suction filtration container body 2, the filtrate or other materials collected by the liquid collection bottle 3 are not easy to pollute the suction filtration container body 2, and simultaneously can not enter the exhaust tube.
Secondly, the inside of the container body is filtered by the liquid collecting bottle 3, so that the negative pressure generated by pressure filtration is not born, and the specification and the thickness of the collecting bottle are not required.
In order to improve the sealing performance between the holes of the Buchner funnel 1 and the upper end cover 5 of the suction filtration container body, the soft connection is arranged between the Buchner funnel 1 and the suction filtration container body, and the soft connection comprises a sealing gasket, a sealing sleeve and a sealing ring 6, such as a traditional sealing plug with a hole.
To the leakproofness of suction filtration container main part upper end lid 5 and main part, use the inscribe to its mode, for vacuum degree when guaranteeing the filtration etc. use the rubber pad to seal.
The specification of the liquid collecting bottle 3 can be selected according to the amount of the filtered liquid, and the liquid collecting bottle can be in different sizes.
The vacuum pump 4 is connected with the exhaust tube 8 through the vacuum hose 9, can resist negative pressure without deformation, and is flexible, convenient to bend and convenient to use.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A rapid suction filtration device for detecting low-concentration heavy metal elements is characterized by comprising a plurality of funnels, a suction filtration container main body, a sealing cover, a plurality of liquid collection bottles and a vacuum pump;
a plurality of liquid collecting bottles are arranged in the suction filtration container main body, and the liquid collecting bottles are fixedly arranged at the bottom of the suction filtration container main body through clamps; the upper part of the suction filtration container main body is provided with an opening, and a sealing cover seals the opening; a funnel pipe at the lower part of each funnel is inserted into the sealing cover, and the lower part of each funnel pipe extends into the liquid collecting bottle;
the vacuum pump is connected with the suction filtration container main body through an exhaust pipe and a vacuum hose and used for generating negative pressure in the suction filtration container main body.
2. The rapid suction filtration device according to claim 1, characterized in that: the extraction pipe is hermetically connected with the suction filtration container main body; the opening of the suction filtration container main body is an inner tangent plane, a sealing rubber pad is arranged on the surface of the inner tangent plane, and the peripheral side wall of the sealing cover is a plane matched with the inner tangent plane; the suction filtration container main body and the sealing cover enclose a closed space.
3. The rapid suction filtration device according to claim 1, characterized in that: the funnel is a buchner funnel.
4. The rapid suction filtration device according to claim 1, characterized in that: the exhaust tube is a vacuum hose.
5. The rapid suction filtration device according to claim 1, characterized in that: a plurality of liquid collecting bottle setting positions are arranged in the suction filtration container main body, and each liquid collecting bottle setting position is limited by a plurality of clamps surrounding the setting position.
6. The rapid suction filtration device according to claim 1, characterized in that: the funnel pipe at the lower part of each funnel is correspondingly inserted into one hole on the sealing cover.
7. The rapid suction filtration device according to claim 6, wherein: and sealing oil is smeared in the holes.
8. The rapid suction filtration device according to any one of claims 1 to 7, wherein: the opening is formed by smearing sealing oil between the inner tangent plane and the peripheral side wall of the sealing cover.
9. The rapid suction filtration device according to any one of claims 1 to 7, wherein: 3 liquid collecting bottles are arranged in the suction filtration container main body, and 3 funnels are inserted into the sealing covers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911338601.2A CN110975374A (en) | 2019-12-23 | 2019-12-23 | A quick suction filter device for detecting low concentration heavy metal element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911338601.2A CN110975374A (en) | 2019-12-23 | 2019-12-23 | A quick suction filter device for detecting low concentration heavy metal element |
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| Publication Number | Publication Date |
|---|---|
| CN110975374A true CN110975374A (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911338601.2A Pending CN110975374A (en) | 2019-12-23 | 2019-12-23 | A quick suction filter device for detecting low concentration heavy metal element |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112723481A (en) * | 2020-12-18 | 2021-04-30 | 中国海洋大学 | Novel multi-connected filtering device and filtering method for seawater soluble organic matters |
| CN114917649A (en) * | 2022-05-23 | 2022-08-19 | 中国地质科学院水文地质环境地质研究所 | Multi-volume suction filtration device and suction filtration method |
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| CN203663556U (en) * | 2013-12-24 | 2014-06-25 | 成都中医药大学 | Filter device suitable for cool and hot environments |
| CN104667596A (en) * | 2015-02-02 | 2015-06-03 | 新疆农业科学院农产品贮藏加工研究所 | Box type rapid suction filtration device applicable to laboratory |
| CN110141918A (en) * | 2019-05-22 | 2019-08-20 | 内蒙古科技大学 | A kind of multichannel composite electromagnetic dust removal by filtration device |
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2019
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| CN201186179Y (en) * | 2008-01-16 | 2009-01-28 | 王天涯 | Multi-connection stainless steel liquid sample filtration device |
| CN201157712Y (en) * | 2008-01-28 | 2008-12-03 | 国家海洋局第一海洋研究所 | Filter for suspended matter in sea water |
| CN103100247A (en) * | 2013-02-02 | 2013-05-15 | 苏州晶云药物科技有限公司 | Vacuum filtration device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112723481A (en) * | 2020-12-18 | 2021-04-30 | 中国海洋大学 | Novel multi-connected filtering device and filtering method for seawater soluble organic matters |
| CN114917649A (en) * | 2022-05-23 | 2022-08-19 | 中国地质科学院水文地质环境地质研究所 | Multi-volume suction filtration device and suction filtration method |
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Application publication date: 20200410 |