CN218297671U

CN218297671U - On-spot sampling and preprocessing device of plastic particle monitoring in water

Info

Publication number: CN218297671U
Application number: CN202222353486.XU
Authority: CN
Inventors: 张岚; 陈永艳; 吕佳; 邢方潇
Original assignee: Institute Of Environment And Health Related Product Safety China Center For Disease Control And Prevention
Current assignee: Institute Of Environment And Health Related Product Safety China Center For Disease Control And Prevention
Priority date: 2022-09-05
Filing date: 2022-09-05
Publication date: 2023-01-13
Anticipated expiration: 2032-09-05

Abstract

The utility model discloses an on-spot sampling and preprocessing device of plastic particle monitoring in water relates to plastic particle sampling technical field, including toolbox body, sampling bottle, waste liquid bottle, micro-plastic collector, collector memory disc, vacuum pump, the toolbox body contains toolbox body and top cap, and the toolbox body rotates with the top cap to be connected, and the junction is provided with the limit structure of the angle that opens and shuts of restriction, and the toolbox body is provided with the hasp structure that prevents in the transportation that the top cap bullet is opened with the lock department of top cap, the beneficial effects of the utility model are that: the water sample is pretreated while being sampled, only the micro plastic collector is stored, the storage and transportation of the water quality liquid sample are not needed, and the storage and the transportation are simple, convenient and quick. The storage dishes are vertically arranged in the storage rack, so that the occupied space is small in volume, the storage dishes are placed neatly, and the storage rack is convenient to find. Meanwhile, the sample storage rack can be expanded, and the number of stored samples is far more than that of common sampling boxes.

Description

On-spot sampling and preprocessing device of plastic particle monitoring in water

Technical Field

The utility model relates to a plastic particle sampling technical field specifically is a field sampling and preprocessing device of plastic particle monitoring in water.

Background

Plastic particles are widely concerned by the public as a new pollutant detected in environmental water and drinking water. The plastic particles refer to plastic fragments with the diameter less than 5 mm, and are formed by crushing plastic wastes generated in production and life under the actions of ultraviolet illumination, atmospheric oxidation, microbial activity and the like. Plastic particle contamination presents a potential health risk to humans in terms of physical toxicity, chemical toxicity, biological toxicity effects. Drinking water becomes one of the main ways for people to continuously expose plastic particles, the micro plastic particles are ubiquitous, the pollution of a sampling device needs to be avoided in the whole sampling and pretreatment processes, and the accuracy of a detection result is guaranteed. In addition, the particle size of the micro-plastic in the source water and the drinking water is small, the quantity of the micro-plastic is less than that of the micro-plastic in the ocean and the landscape water, and in order to improve the detection accuracy and the sample uniformity, a large-volume sample collection is needed, so that the sample treatment is long in time consumption and low in efficiency, and therefore the field sampling and pretreatment device for monitoring the plastic particles in the water is provided.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a field sampling and preprocessing device of plastic particle monitoring in water has solved the problem of proposing among the above-mentioned background art.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides an on-spot sampling and preprocessing device of plastic particle monitoring in water, includes toolbox body, sampling bottle, waste liquid bottle, little plastic collector, collector memory disc, vacuum pump, the toolbox body contains toolbox body and top cap, the toolbox body rotates with the top cap to be connected, the junction is provided with the limit structure that the restriction opened and shut the angle, the buckling department of toolbox body and top cap is provided with the hasp structure that prevents in the transportation that the top cap bounces, the universal removal wheel of bottom installation of toolbox body, portable handle is furnished with respectively to the both sides of toolbox body, the sampling bottle is the glass material, and the capacity is 1.2 liters to have the scale.

Preferably, the waste liquid bottle is made of glass, the capacity of the waste liquid bottle is 1.2 liters, and the lower part of the waste liquid bottle is provided with a drain valve.

Preferably, the micro plastic collector is made of stainless steel, the micro plastic collector is divided into an upper part and a lower part which are connected through a buckle, a stainless steel screen is arranged in the middle of the micro plastic collector, the aperture of the stainless steel screen is 1 micron, a water inlet hole is formed in the upper part of the micro plastic collector, a stainless steel pipe is fixedly installed at one end of the micro plastic collector, the micro plastic collector is connected with the sampling bottle through the stainless steel pipe, and a drain hole is formed in the lower part of the micro plastic collector and is simultaneously connected with the waste liquid bottle.

Preferably, the collector storage tray contains 10 sample storage dishes inside and is vertically arranged in the storage rack, and the micro plastic collector is placed inside the sample storage dish.

Preferably, the vacuum pump comprises a vacuum connection tube.

Preferably, the upper part of the micro plastic collector is connected with a sampling bottle through a stainless steel pipe, and a side interface of the micro plastic collector is connected with a vacuum pump through a vacuum connecting pipe.

The utility model provides an on-spot sampling and preprocessing device of plastic particle monitoring in water possesses following beneficial effect:

1. this on-spot sampling and preprocessing device of plastic particle monitoring in water only deposits the little plastic collector through carrying out the preliminary treatment to the water sample in the sampling, need not to carry out quality of water liquid sample and stores the transportation, realizes that storage and transportation are simple, convenient, swift. The storage dishes are vertically arranged in the storage rack, so that the occupied space is small in volume, the storage dishes are placed neatly, and the storage rack is convenient to find. Meanwhile, the sample storage rack can be expanded, the number of stored samples is far more than that of a common sampling box, and the practicability of the sampling and pretreatment tool is improved.

2. According to the field sampling and pretreatment device for monitoring the plastic particles in the water body, the prepared pretreatment device is made of metal materials such as glass or stainless steel, the plastic particles cannot be contacted during pretreatment, and the plastic particle pollution caused in the treatment process is avoided; ordinary funnel formula suction filter device will collect plastic particle's filter membrane after to the water suction filter and take out, transport again to the laboratory and detect, compare with it, the outside cavity of micro plastic collector has the function that prevents to vibrate the loss after micro plastic collects. Meanwhile, the stainless steel screen inside the micro plastic collector has the function of enriching plastic particles, and is tough, so that compared with polycarbonate filter membranes, cellulose filter membranes and the like, the material of the stainless steel screen does not cause pollution or interference in the sample treatment process. The device has the advantages that the device has various pore diameters of 2 microns, 5 microns, 10 microns, 25 microns, 50 microns and the like, and is wide in selectable range, so that the sample collection and pretreatment device is not only suitable for collecting samples with small plastic particle diameters such as drinking water and the like, but also suitable for collecting samples of environmental water bodies with large plastic particle diameters, and the practicability of the sample collection and pretreatment device is improved.

3. This on-spot sampling and preprocessing device of plastic particle monitoring in water adopts 12V direct current to be the power through utilizing the vacuum pump, is furnished with 2 kinds of power cords, can connect on-vehicle cigar lighter power or battery storage battery, and multiple outdoor water sources water collection such as the diversion canal, lake of being convenient for is used. The sampling device is manufactured by adopting optimized structural design and special materials, has small appearance and light weight, reduces the burden of sample collection when the sampling device is carried outdoors, and meets the requirements of users in different sampling environments.

4. This on-spot sampling and preprocessing device of plastic particle monitoring in water, the instrument box contain toolbox body and top cap, toolbox body and top cap rotatable coupling, and the lock department of toolbox body and top cap is provided with the hasp structure that prevents the transportation in-process top cap bullet and open. The bottom of the tool box body is provided with universal moving wheels with brake structures, and two sides of the outer shell of the tool box body are respectively provided with a portable handle. Therefore, the top cover of the sampling box body is convenient to open and close, the whole use is convenient, the working efficiency of sampling personnel is improved, and the working intensity of the sampling personnel is reduced.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic block diagram of the present invention;

FIG. 3 is a schematic structural view of the sampling bottle of the present invention;

FIG. 4 is a schematic view of the storage rack of the present invention;

FIG. 5 is a schematic view of a micro-plastic collector according to the present invention;

fig. 6 is an operation diagram of the present invention.

In the figure: 1. a tool box body; 2. a sampling bottle; 3. a waste liquid bottle; 4. a micro-plastic collector; 401. a stainless steel screen; 5. a collector storage disk; 501. a sample storage vessel; 502. a storage rack; 6. a vacuum pump; 601. a vacuum connecting pipe; 7. stainless steel tubes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

The first embodiment is as follows:

please refer to fig. 1 to 4, a field sampling and preprocessing device for monitoring plastic particles in water, comprising a tool box body 1, a sampling bottle 2, a waste liquid bottle 3, a micro plastic collector 4, a collector storage disc 5 and a vacuum pump 6, wherein the tool box body 1 comprises a tool box body and a top cover, the tool box body 1 is rotatably connected with the top cover, a limit structure for limiting an opening and closing angle is arranged at a joint, a lock catch structure for preventing the top cover from bouncing off in the transportation process is arranged at a buckling part of the tool box body 1 and the top cover, universal movable wheels are arranged at the bottom of the tool box body 1, portable handles are respectively arranged at two sides of the tool box body 1, the tool box body comprises the tool box body and the top cover, the tool box body is rotatably connected with the top cover, and the buckling part of the tool box body and the top cover is provided with the lock catch structure for preventing the top cover from bouncing off in the transportation process. The bottom of the tool box body is provided with universal moving wheels with brake structures, and two sides of the outer shell of the tool box body are respectively provided with a portable handle. Therefore, the sampling box top cover is convenient to open and close, the whole use is convenient, the working efficiency of sampling personnel is improved, the working strength of the sampling personnel is reduced, the sampling bottle 2 is made of glass, the capacity is 1.2 liters and is provided with scales, the waste liquid bottle 3 is made of glass, the capacity is 1.2 liters, the lower part of the waste liquid bottle is provided with a drain valve, the micro plastic collector 4 is made of stainless steel, the micro plastic collector 4 is divided into an upper part and a lower part which are fixedly connected by a buckle, the middle of the micro plastic collector 4 is provided with a stainless steel screen 401, the aperture of the stainless steel screen 401 is 1 micron, the upper part of the micro plastic collector 4 is provided with a water inlet hole, one end of the micro plastic collector 4 is fixedly provided with a stainless steel pipe 7, the micro plastic collector 4 is connected with the sampling bottle 2 through the stainless steel pipe 7, the lower part of the micro plastic collector 4 is provided with a drain hole and is simultaneously connected with the waste liquid bottle 3, a water sample is preprocessed while the sampling is carried out, only the micro plastic collector is stored without carrying out water quality sample storage and transportation, and the storage are simple, convenient and fast to realize the storage. The storage dishes are vertically arranged in the storage rack, so that the occupied space is small in volume, the storage dishes are placed neatly, and the storage rack is convenient to find. Simultaneously, the sample storage rack can be expanded, the number of stored samples is far more than that of common sampling boxes, the practicability of sampling and pretreatment tools is improved, the inside of the collector storage disk 5 comprises 10 sample storage dishes 501, the samples are vertically arranged in the storage rack 502, the micro plastic collector 4 is placed inside the sample storage dishes 501, the vacuum pump 6 comprises a vacuum connecting pipe 601, the upper part of the micro plastic collector 4 is connected with the sampling bottle 2 through a stainless steel pipe 7, and the side interface of the micro plastic collector 4 is connected with the vacuum pump 6 through the vacuum connecting pipe 601.

To sum up, this on-spot sampling and preprocessing device of plastic particle monitoring in water, when using, at first place stainless steel screen cloth 401 in the middle of little plastic collector 4 to the buckle is fixed two parts down and is sealed. The upper part of the micro plastic collector 4 is connected with the sampling bottle 2 through a stainless steel pipe 7, a side interface is connected with a vacuum pump 6 through a vacuum connecting pipe 601, a lower interface is connected with the waste liquid bottle 3, a field sampling person for monitoring plastic particles pours a sample into the sampling bottle, records the volume of the sample, and opens the vacuum pump 6 to generate negative pressure, so that the water sample in the sampling bottle 2 passes through the micro plastic collector 4 and then enters the waste liquid bottle 3. According to the collection speed, the water sample in the sampling bottle 2 is timely supplemented, the volume of the sample is recorded, meanwhile, the volume of the waste liquid in the waste liquid bottle 3 is observed, and the sealing valve is timely opened to discharge the waste liquid. After the pretreatment is finished, the plastic particles in the water sample can be retained on the stainless steel screen 401 in the micro plastic collector 4, the micro plastic collector 4 is stored in the sample storage dish 501, and the sample information mark is made. The sample storage vessel 501 is placed in the storage rack 502 and stored inside the body 1 of the insertion kit. And replacing the micro plastic collector 4 to perform next sample pretreatment to finish the treatment work.

The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an on-spot sampling and preprocessing device of plastic particle monitoring in water, includes toolbox body (1), sampling bottle (2), waste liquid bottle (3), little plastic collector (4), collector memory disc (5), vacuum pump (6), its characterized in that: toolbox body (1) contains toolbox body and top cap, toolbox body (1) rotates with the top cap to be connected, the junction is provided with the limit structure of restriction angle that opens and shuts, toolbox body (1) is provided with the hasp structure that prevents in the transportation top cap bullet and open, the universal removal wheel of bottom installation of toolbox body (1), the both sides of toolbox body (1) are furnished with portable handle respectively, sampling bottle (2) are the glass material, and the capacity is 1.2 liters to have the scale.

2. The on-site sampling and pretreatment device for monitoring plastic particles in a water body according to claim 1, wherein: the waste liquid bottle (3) is made of glass and has the capacity of 1.2 liters, and the lower part is provided with a drain valve.

3. The on-site sampling and pretreatment device for monitoring plastic particles in a water body according to claim 1, wherein: the micro plastic collector (4) is made of stainless steel, the micro plastic collector (4) is divided into an upper part and a lower part which are fixedly connected through a buckle, a stainless steel screen (401) is arranged in the middle of the micro plastic collector (4), the aperture of the stainless steel screen (401) is 1 micron, a water inlet hole is formed in the upper part of the micro plastic collector (4), a stainless steel pipe (7) is fixedly installed at one end of the micro plastic collector (4), the micro plastic collector (4) is connected with the sampling bottle (2) through the stainless steel pipe (7), and a drain hole is formed in the lower part of the micro plastic collector (4) and is simultaneously connected with the waste liquid bottle (3).

4. The on-site sampling and pretreatment device for monitoring plastic particles in a water body according to claim 1, wherein: the collector storage tray (5) contains 10 sample storage dishes (501) and is vertically arranged in a storage rack (502), and the micro plastic collector (4) is placed in the sample storage dish (501).

5. The on-site sampling and pretreatment device for monitoring plastic particles in a water body according to claim 1, wherein: the vacuum pump (6) includes a vacuum connection pipe (601).

6. The on-site sampling and pretreatment device for monitoring plastic particles in a water body according to claim 1, wherein: the upper part of the micro plastic collector (4) is connected with the sampling bottle (2) through a stainless steel pipe (7), and a side interface of the micro plastic collector (4) is connected with a vacuum pump (6) through a vacuum connecting pipe (601).