CN213813004U - A rapid filter device for microplastics in water samples - Google Patents
A rapid filter device for microplastics in water samples Download PDFInfo
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- CN213813004U CN213813004U CN202022486296.6U CN202022486296U CN213813004U CN 213813004 U CN213813004 U CN 213813004U CN 202022486296 U CN202022486296 U CN 202022486296U CN 213813004 U CN213813004 U CN 213813004U
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- filter membrane
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Abstract
本实用新型公开了一种水样中微塑料快速过滤装置，包括采水桶、浮子、进水管、密封盖、滤筒、滤膜、滤膜座、夹板、废液罐、真空泵、水位控制器及抽水泵；本实用新型采用在采水桶与废液罐之间设置了进水管、滤筒、滤膜及下座片漏水孔，利用真空泵的吸力将采水桶内的样品吸取，吸取后经橡胶罐口流至废液罐内，将水样中的微塑料过滤到滤膜上，取出滤膜放入玻璃培养皿中，进行检测或后续处理。本实用新型克服了实验室内水样过滤效率低，人力资源浪费的问题，具有水样抽取和过滤快速、高效，且采集的样品代表性强、精准度高的优点。
The utility model discloses a rapid filtering device for microplastics in water samples, comprising a water sampling bucket, a float, a water inlet pipe, a sealing cover, a filter cartridge, a filter membrane, a filter membrane seat, a splint, a waste liquid tank, a vacuum pump, a water level controller and a A suction pump; the utility model adopts a water inlet pipe, a filter cartridge, a filter membrane and a water leakage hole of the lower seat sheet between the water collection bucket and the waste liquid tank, and the suction force of the vacuum pump is used to suck the sample in the water collection bucket, and after the suction, the sample is passed through the rubber tank. The mouth flows into the waste liquid tank, and the microplastics in the water sample are filtered onto the filter membrane, and the filter membrane is taken out and placed in a glass petri dish for detection or subsequent processing. The utility model overcomes the problems of low filtration efficiency of water samples in the laboratory and waste of human resources, and has the advantages of fast and efficient water sample extraction and filtration, and the collected samples have the advantages of strong representativeness and high accuracy.
Description
Technical Field
The utility model belongs to the technical field of water pollutant separation enrichment technique and specifically relates to a quick filter equipment of micro-plastic in water sample.
Background
Micro plastic is currently receiving attention from researchers of global environmental pollution as a novel pollutant. Due to the mass production and unreasonable use of global plastics, a large amount of plastics enter the environment and are continuously crushed into micro plastics with the particle size of less than 5 mm, and the existing research and detection shows that micro plastic pollution is widely existed in various water body environments.
The micro-plastics in the seawater are firstly researched by researchers, and then the research is continuously developed into the land water body. Scientific research has proved that a large amount of micro-plastics enter the water environment and further cause potential harm to various organisms and even human health through a food chain.
At present, two methods are mainly used for sampling micro-plastics in various water bodies: trawl harvesting (trawl) and water sampler harvesting (pump or bucket). The first mode utilizes trawl to directly filter in situ in seawater, and the method has large water collection volume but large pore diameter and is easy to lose a large amount of micro plastic; the second mode is to extract the environmental water sample into the container through a water sampling pump or a water sampler, and then carry out pore diameter filter membrane filtration, the method is closer to the actual result of the environment, but the current water sampler has smaller volume of the collected water sample and poor representativeness, and particularly the large-volume sampling filtration method consumes manpower and material resources when facing high-turbidity water. The method for separating and extracting the micro-plastics in the water sample with high turbidity and large volume still needs continuous research.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the not enough and a quick filter equipment of micro plastics in water sample that provides to prior art, the utility model discloses a set up the inlet tube between water sampling bucket and waste liquid jar, strain a section of thick bamboo, filter membrane and lower seat piece hole that leaks, flow to the waste liquid jar in through the rubber pot mouth after adsorbing the sample water in the water sampling bucket by the vacuum pump, on filtering the filter membrane with the micro plastics in the water sample, take out the filter membrane and put into the glass culture dish, detect or follow-up processing. The utility model overcomes water sample filter time is long in the laboratory, and the problem of manpower resources waste has the water sample extraction and filters fast, high-efficient, and the sample representativeness of gathering is strong, the advantage that the precision is high.
Realize the utility model discloses the concrete technical scheme of purpose is:
a rapid micro-plastic filtering device in a water sample is characterized by comprising a water sampling barrel, a floater, a water inlet pipe, a sealing cover, a filter cartridge, a filter membrane seat, a clamping plate, a waste liquid tank, a vacuum pump and a water pump;
a pipe bracket is arranged on the opening of the water sampling barrel;
the sealing cover is provided with a pipe joint;
the waste liquid tank is a container provided with a rubber tank opening, a vacuum connector is arranged above the tank wall, and a water pump connector is arranged below the tank wall; the waste liquid tank is a container provided with a rubber tank opening, a vacuum interface is arranged above the tank top, a water pump interface is arranged on the tank bottom, and a high-water-level probe seat and a low-water-level probe seat are arranged on the tank body;
the filter cylinder is a cylindrical piece, one end of the filter cylinder is provided with a first sealing flange, and the other end of the filter cylinder is provided with a second sealing flange;
the filter membrane seat consists of an annular upper seat sheet and a lower seat sheet provided with water leakage holes;
one end of the water inlet pipe is supported by a pipe bracket of the water sampling bucket, the pipe orifice is arranged in the water sampling bucket, and the other end of the water inlet pipe is connected with the pipe interface of the sealing cover;
the floater is arranged in the water sampling barrel and is connected with the pipe orifice of the water inlet pipe;
the sealing cover is arranged at one end of the filter cylinder and is connected with the first sealing flange;
the upper seat piece of the filter membrane seat is arranged at the other end of the filter cylinder and is connected with the second sealing flange, the lower seat piece of the filter membrane seat is connected with the rubber tank opening of the waste liquid tank, and the water leakage hole of the lower seat piece is communicated with the rubber tank opening;
the filter membrane is arranged in the lower seat piece of the filter membrane seat, and the upper seat piece of the filter membrane seat is buckled with the lower seat piece; the clamping plates are clamped at the outer sides of the upper seat piece and the lower seat piece of the filter membrane seat;
the vacuum pump is connected with the water level controller, and the water level controller is connected with the high water level probe and the low water level probe.
The vacuum pump is connected with a vacuum interface of the waste liquid tank, and the water suction pump is connected with a water pump interface of the waste liquid tank.
And a metal pipe orifice is arranged at the water inlet of the water inlet pipe.
The vacuum pump is provided with a water level controller, the water level controller is provided with a high water level probe and a low water level probe, and the high water level probe and the low water level probe are respectively arranged in a high water level probe seat and a low water level probe seat on the waste liquid tank body.
The utility model discloses a set up the inlet tube between water sampling bucket and waste liquid jar, strained the hole that leaks of section of thick bamboo, filter membrane and lower piece, flow to the waste liquid jar in through the rubber jar mouth after adsorbing the sample water in the water sampling bucket by the vacuum pump, on filtering the filter membrane with the micro plastics in the water sample, take out the filter membrane and put into the glass culture dish, detect or follow-up processing. The utility model overcomes the water sample filtration efficiency is low in the laboratory, and the problem of manpower resources waste has the water sample extraction and filters fast, high-efficient, and the sample representativeness of collection is strong, advantage that the precision is high.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
fig. 3 is a partially enlarged view of a portion B of fig. 1.
Detailed Description
The technical solution of the present invention is further described below by referring to the following specific embodiments, and the following embodiments are only used to more clearly illustrate the technical solution of the present invention, and the protection scope of the present invention cannot be limited thereby:
referring to fig. 1, 2 and 3, the utility model comprises a water sampling barrel 1, a floater 2, a water inlet pipe 3, a sealing cover 4, a filter cartridge 5, a filter membrane 6, a filter membrane seat 7, a clamp plate 8, a waste liquid tank 9, a water pump 10 and a vacuum pump 11;
a pipe bracket 101 is arranged on the opening of the water sampling barrel 1;
the sealing cover 4 is provided with a pipe joint 41;
the waste liquid tank 9 is a container provided with a rubber tank opening 91, a vacuum interface 92 is arranged above the tank top, a water pump interface 93 is arranged on the tank bottom, and a high water level probe seat and a low water level probe seat are arranged on the tank body;
the filter cartridge 5 is a cylindrical member, one end of which is provided with a first sealing flange 51, and the other end of which is provided with a second sealing flange 52;
the filter membrane seat 7 consists of an annular upper seat sheet 71 and a lower seat sheet 72 provided with water leakage holes 73;
one end of the water inlet pipe 3 is supported by the pipe bracket 101 of the water sampling barrel 1, the pipe orifice is arranged in the water sampling barrel 1, and the other end of the water inlet pipe is connected with the pipe interface 41 of the sealing cover 4;
the floater 2 is arranged in the water sampling barrel 1 and is connected with the pipe orifice of the water inlet pipe 3;
the sealing cover 4 is arranged at one end of the filter cylinder 5 and is connected with a first sealing flange 51;
the upper seat piece 71 of the filter membrane seat 7 is arranged at the other end of the filter cartridge 5 and is connected with the second sealing flange 52, the lower seat piece 72 of the filter membrane seat 7 is connected with the rubber tank opening 91 of the waste liquid tank 9, and the water leakage hole 73 of the lower seat piece 72 is communicated with the rubber tank opening 91;
the filter membrane 6 is arranged in the lower seat piece 72 of the filter membrane seat 7, and the upper seat piece 71 of the filter membrane seat 7 is buckled with the lower seat piece 72; the clamping plate 8 is clamped at the outer sides of the upper seat sheet 71 and the lower seat sheet 72 of the filter membrane seat 7;
the vacuum pump 11 is connected with a water level controller 113, and the water level controller 113 is connected with a high water level probe 111 and a low water level probe 112;
the vacuum pump 11 is connected with a vacuum interface 92 of the waste liquid tank 9, and the water pump 10 is connected with a water pump interface 93 of the waste liquid tank 9.
Referring to fig. 1 and 3, a metal nozzle 31 is disposed on the water inlet of the water inlet pipe 3.
Referring to fig. 1, a water level controller 113 is disposed on the vacuum pump 11, a high water level probe 111 and a low water level probe 112 are disposed on the water level controller 113, and the high water level probe 111 and the low water level probe 112 are respectively disposed in a high water level probe seat and a low water level probe seat of the waste liquid tank 9.
The utility model discloses the working process is as follows:
referring to fig. 1, 2 and 3, after the installation of the present invention, the water level controller 113 and the water pump 10 are respectively connected to the electric control cabinet; the collected sample water is filled into a water collecting barrel 1; the metal pipe mouth 31 of the water inlet pipe 3 is arranged in the water sampling barrel 1, the metal pipe mouth 31 of the water inlet pipe 3 floats on the surface layer of the sample water in the water sampling barrel 1 through the floater 2, and the water inlet pipe 3 floats on the pipe bracket 101 of the water sampling barrel 1.
Referring to fig. 1, 2 and 3, the clamping plate 8 is opened, and the upper seat sheet 71 of the filter membrane seat 7 together with the filter cartridge 5 is removed; a new filter membrane 6 is arranged in the lower seat piece 72 of the filter membrane seat 7, and the upper seat piece 71 of the filter membrane seat 7 is buckled with the lower seat piece 72; the upper seat piece 71 and the lower seat piece 72 of the filter membrane seat 7 are fastened by the clamping plate 8.
Referring to fig. 1, 2 and 3, the water level controller 113 is turned on, the water level is lower than the low water level probe 112, the vacuum pump 11 is started to work, the sample water in the water collection barrel 1 is adsorbed, and flows into the waste liquid tank 9 through the rubber tank port 91 after passing through the water inlet pipe 3, the filter cartridge 5, the filter membrane 6 and the water leakage hole 73 of the lower seat piece 72, the water level reaches the high water level probe 111, and the vacuum pump 11 stops working.
Referring to fig. 1, 2 and 3, the clamping plate 8 is opened, and the upper seat sheet 71 of the filter membrane seat 7 together with the filter cartridge 5 is removed; the filter membrane 6 is taken out from the lower sheet 72 of the filter membrane seat 7 and put into a glass culture dish for detection or subsequent treatment.
And starting the water suction pump 10, enabling the water suction pump 10 to work, emptying the water in the waste liquid tank 9, and preparing for filtering the micro plastic in the water sample next time.
Referring to fig. 1 and 3, in order to ensure that the water inlet of the water inlet pipe 3 of the present invention always floats on the surface layer of the sample water in the water collecting barrel 1, the present invention arranges the float 2 on the pipe orifice of the water inlet pipe 3, and the float 2 controls the depth of the pipe orifice of the water inlet pipe 3 to be immersed into the surface layer of the sample water; for preventing float 2 from turning on one's side, the utility model discloses the nose end at inlet tube 3 has set up metal mouth of pipe 31, as the counter weight, remains the gesture on the top layer of the mouth of pipe of inlet tube 3 sample water in bucket 1 throughout.
Referring to fig. 1 and 2, in order to facilitate replacement of the filter membrane 6, the filter membrane seat 7 of the present invention is designed to be a structure in which the upper seat piece 71 and the lower seat piece 72 are fastened, the filter membrane 6 is disposed in the lower seat piece 72 of the filter membrane seat 7, and the clamp plate 8 is used to clamp the outer sides of the upper seat piece 71 and the lower seat piece 72 of the filter membrane seat 7; the upper seat sheet 71 and the lower seat sheet 72 can be separated by disassembling the clamping plate 8, so that the filter membrane 6 can be replaced.
In order to qualitatively and quantitatively analyze the particles collected in the sample, the particles need to be observed by photographing and identified by an instrument. The suspected micro-plastics are counted by using a body type microscope for photographing and observation, and the method of visual interpretation can only roughly separate the suspected micro-plastics and can not confirm the components of the particulate matters. Subsequently, a microscopic infrared spectrometer (Nicolet iN 10) is used for identifying the chemical components of the suspected micro plastic particles, judging whether the suspected micro plastic particles are plastic materials or not, and determining the specific polymerization of the suspected micro plastic particles.
Referring to fig. 1, the utility model discloses a mode of the automatic suction filtration water sample of sealed vacuum pump 11 pays out more manpower and time cost when having reduced traditional mode suction filtration effectively, the utility model discloses can be effectively to micro-plastic in the water enrichment, the transposition all is in airtight state at filterable whole in-process, and the pollution of micronic dust in whole filtering process can completely cut off the air, and the water sample can not spill over, has reduced the error, has guaranteed the reliability and the accuracy of data.
Referring to fig. 1, for the water level in the control waste liquid tank 9, the utility model discloses a be equipped with water level controller 113 on the vacuum pump 11, be equipped with high water level probe 111 and low water level probe 112 on the water level controller 113, and high water level probe 111 and low water level probe 112 locate respectively in the high water level probe seat and the low water level probe seat on the waste liquid tank 9 jar body.
Claims (3)
1. A rapid micro-plastic filtering device in a water sample is characterized by comprising a water sampling barrel (1), a floater (2), a water inlet pipe (3), a sealing cover (4), a filter cylinder (5), a filter membrane (6), a filter membrane seat (7), a clamping plate (8), a waste liquid tank (9), a water pump (10) and a vacuum pump (11);
a pipe bracket (101) is arranged on the opening of the water sampling barrel (1);
the sealing cover (4) is provided with a pipe interface (41);
the waste liquid tank (9) is a container provided with a rubber tank opening (91), a vacuum interface (92) is arranged above the tank top, a water pump interface (93) is arranged on the tank bottom, and a high-water-level probe seat and a low-water-level probe seat are arranged on the tank body;
the filter cartridge (5) is a cylindrical piece, one end of the filter cartridge is provided with a first sealing flange (51), and the other end of the filter cartridge is provided with a second sealing flange (52);
the filter membrane seat (7) is composed of an annular upper seat sheet (71) and a lower seat sheet (72) provided with water leakage holes (73);
one end of the water inlet pipe (3) is supported by a pipe bracket (101) of the water sampling barrel (1), the pipe orifice is arranged in the water sampling barrel (1), and the other end of the water inlet pipe is connected with a pipe interface (41) of the sealing cover (4);
the floater (2) is arranged in the water sampling barrel (1) and is connected with the pipe orifice of the water inlet pipe (3);
the sealing cover (4) is arranged at one end of the filter cylinder (5) and is connected with the first sealing flange (51);
an upper seat sheet (71) of the filter membrane seat (7) is arranged at the other end of the filter cylinder (5) and is connected with a second sealing flange (52), a lower seat sheet (72) of the filter membrane seat (7) is connected with a rubber tank opening (91) of the waste liquid tank (9), and a water leakage hole (73) of the lower seat sheet (72) is communicated with the rubber tank opening (91);
the filter membrane (6) is arranged in the lower seat piece (72) of the filter membrane seat (7), and the upper seat piece (71) of the filter membrane seat (7) is buckled with the lower seat piece (72); the clamping plate (8) is clamped at the outer sides of an upper seat sheet (71) and a lower seat sheet (72) of the filter membrane seat (7);
the vacuum pump (11) is connected with a vacuum interface (92) of the waste liquid tank (9), and the water pump (10) is connected with a water pump interface (93) of the waste liquid tank (9).
2. The rapid filtering device for the micro-plastics in the water sample as claimed in claim 1, wherein the water inlet of the water inlet pipe (3) is provided with a metal pipe orifice (31).
3. The rapid filtering device for the micro-plastics in the water sample as claimed in claim 1, wherein the vacuum pump (11) is provided with a water level controller (113), the water level controller (113) is provided with a high water level probe (111) and a low water level probe (112), and the high water level probe (111) and the low water level probe (112) are respectively arranged in a high water level probe seat and a low water level probe seat on the waste liquid tank (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022486296.6U CN213813004U (en) | 2020-11-02 | 2020-11-02 | A rapid filter device for microplastics in water samples |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022486296.6U CN213813004U (en) | 2020-11-02 | 2020-11-02 | A rapid filter device for microplastics in water samples |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213813004U true CN213813004U (en) | 2021-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022486296.6U Expired - Fee Related CN213813004U (en) | 2020-11-02 | 2020-11-02 | A rapid filter device for microplastics in water samples |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213813004U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115901356A (en) * | 2022-11-07 | 2023-04-04 | 清华大学 | A device and method for rapid collection of microplastics in fresh water |
-
2020
- 2020-11-02 CN CN202022486296.6U patent/CN213813004U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115901356A (en) * | 2022-11-07 | 2023-04-04 | 清华大学 | A device and method for rapid collection of microplastics in fresh water |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210727 |
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| CF01 | Termination of patent right due to non-payment of annual fee |