CN113181704A - Pre-filtering collector for offshore water body detection - Google Patents
Pre-filtering collector for offshore water body detection Download PDFInfo
- Publication number
- CN113181704A CN113181704A CN202110746561.6A CN202110746561A CN113181704A CN 113181704 A CN113181704 A CN 113181704A CN 202110746561 A CN202110746561 A CN 202110746561A CN 113181704 A CN113181704 A CN 113181704A
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- Prior art keywords
- pipe
- offshore water
- external
- wall
- screw cap
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 238000001514 detection method Methods 0.000 title claims abstract description 33
- 238000001914 filtration Methods 0.000 title abstract description 9
- 238000000605 extraction Methods 0.000 claims abstract description 8
- 238000011045 prefiltration Methods 0.000 claims description 13
- 229920001875 Ebonite Polymers 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 238000001802 infusion Methods 0.000 claims description 2
- 239000012535 impurity Substances 0.000 abstract description 6
- 239000013535 sea water Substances 0.000 description 9
- 239000003653 coastal water Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003864 humus Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/30—Filter housing constructions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
Abstract
The invention discloses a pre-filtering collector for offshore water body detection, which comprises a connecting column, a screw cap, an external connecting pipe and a transfusion bottle, the inner part of the connecting column is inserted with the external pipe, the top part of the external pipe is in threaded connection with the screw cap, the bottom part of the external pipe is inserted with the transfusion bottle, the side wall of the screw cap is inserted with the main pipe, the pre-filtering collector for offshore water body detection is characterized in that an external connecting pipe is arranged on a connecting column, a screw cap and a hanging bottle are respectively combined by utilizing two ends of the external connecting pipe, the screw cap is connected with an extraction pipe by utilizing a main pipe, an elastic hose and an auxiliary pipe, and then by means of an internal filter element, the offshore water that can extract filters in advance to continue transmitting for the transfusion bottle through external pipe, make the offshore water filter through the screen panel once more, make the offshore water that enters into in the transfusion bottle filter completely, for the detection in later stage provides no impurity sample, guaranteed the accuracy and the security of detection.
Description
Technical Field
The invention relates to the technical field of sampling devices, in particular to a pre-filtering collector for offshore water body detection.
Background
The sea water is water in or from the sea, and in the process of marine detection, various modern technologies and sensors are utilized to detect and detect the marine environment, and marine detection engineering and equipment are the basis for marine development, control and comprehensive management.
In the process of ocean detection, offshore water needs to be detected, seawater is a genuine liquid mineral product, 3570 ten thousand tons of minerals exist in average per cubic kilometer of seawater, and 80% of more than 100 elements known in the world can be found in seawater.
Seawater is a very complex multi-component aqueous solution, and various elements in the seawater exist in certain physical and chemical forms. The presence of copper in seawater is complex and mostly in the form of organic compounds. Only a small part of free ions exist in the form of divalent positive ions, most of the free ions appear as negative ion complexes, and dissolved organic matters in seawater are very complex and mainly are substances called marine humus.
In the existing protection of offshore water bodies, sewage, waste residues, waste oil and chemical substances continuously flow into the sea, and in many sea areas, the dumping of sewage mixed with petroleum is illegal, but the phenomenon still happens occasionally, and the offshore water bodies also influence the living environment of human beings, so that offshore water body detection is needed.
Disclosure of Invention
The invention aims to provide a pre-filtering collector for offshore water body detection, which aims to solve the problems that a plurality of impurities exist in the existing offshore water body and an effective pretreatment mode is lacked, so that a large amount of impurities still exist in the offshore water body after collection, and the accuracy and the safety are reduced in the detection process.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an offshore water body detects with prefiltering collector which characterized in that: the infusion bottle comprises a connecting column, a screw cap, an external connecting pipe and a transfusion bottle, wherein the connecting column is inserted into the external connecting pipe, the top of the external connecting pipe is in threaded connection with the screw cap, the bottom of the external connecting pipe is in threaded connection with a guide pipe, the bottom of the guide pipe is inserted into the transfusion bottle, a main pipe is inserted into the side wall of the screw cap, a main pipe filter core is filled in the circumferential inner wall of the main pipe, an elastic hose is inserted into the side wall of the main pipe, a hose plug is bonded at the tail end of the elastic hose, an auxiliary pipe is inserted into the side wall of the hose plug, an auxiliary pipe filter core is filled in the circumferential inner wall of the auxiliary pipe, a spiral column is connected with the side wall of the auxiliary pipe in threaded connection, an extraction pipe is inserted into the spiral column, the external connecting pipe is in threaded connection with the screw cap, the bottom of the external connecting pipe is in threaded connection with the guide pipe, the transfusion bottle is sleeved with a sleeve plate, and a sleeve plate ring is integrally arranged on the circumferential inner wall of the sleeve plate, the inner wall of the sleeve plate ring is inserted with an inner pipe, the inner pipe is inserted with an inner pipe disc, the bottom of the sleeve plate is bonded with a mesh enclosure, and the circumferential outer wall of the inner pipe disc is bonded with the circumferential inner wall of the mesh enclosure.
As a preferred embodiment: the threaded connection of both sides of spliced pole has the side column, the threaded connection of both sides of side column has the post of inserting.
As a preferred embodiment: the bottom of spliced pole is inlayed and is had the embedding board, the material of embedding board is the stereoplasm rubber slab.
As a preferred embodiment: the sleeve plate ring is movably connected with a gasket, and the gasket is a hard rubber ring.
As a preferred embodiment: the inner pipe and the inner pipe disc are both made of corrosion-resistant alloy pipes, and the mesh enclosure is funnel-shaped.
As a preferred embodiment: the external connecting pipe is in threaded connection with a flange.
As a preferred embodiment: the number of the screw caps, the external connecting pipes, the guiding pipes and the hanging bottles is three, and the screw caps, the external connecting pipes, the guiding pipes and the hanging bottles are horizontally arranged.
Compared with the prior art, the invention has the beneficial effects that: this kind of coastal waters water detects with prefiltering collector, combination application through the accessory, set up external pipe on the spliced pole, and utilize the both ends of external pipe to make up spiral cover and transfusion bottle respectively, the spiral cover utilizes the person in charge, elastic hose and auxiliary pipe and extraction union coupling back, with the help of inside filter core, can carry out prefiltering to the coastal waters of extraction, and continue to transmit for the transfusion bottle through the guiding tube, contain the inner tube that carries interior coil pipe in the transfusion bottle, make the coastal waters filter through the screen panel once more, make the coastal waters that enters into in the transfusion bottle filter completely, the detection in later stage provides the no impurity sample, the accuracy and the security of detection have been guaranteed.
Drawings
FIG. 1 is a schematic diagram of a pre-filter harvester for offshore water detection according to the present invention;
FIG. 2 is a schematic diagram of a connecting column of the pre-filtration harvester for offshore water body detection according to the present invention;
FIG. 3 is a schematic side view of a pre-filter harvester for offshore water detection according to the present invention;
FIG. 4 is a schematic side perspective view of a pre-filter harvester for offshore water detection in accordance with the present invention;
FIG. 5 is a schematic diagram of the internal structure of a hanging bottle of the pre-filtration harvester for offshore water body detection according to the present invention;
fig. 6 is a schematic diagram of a deck structure of a pre-filter harvester for offshore water detection according to the present invention.
In the figure: 100 connecting columns, 110 side columns, 120 inserting columns, 130 embedded plates, 200 spiral covers, 210 main pipes, 211 main pipe filter elements, 220 elastic hoses, 221 hose plugs, 230 auxiliary pipes, 231 auxiliary pipe filter elements, 240 spiral columns, 250 extraction pipes, 300 external connecting pipes, 310 guide pipes, 400 suspension bottles, 410 sleeve plates, 411 sleeve plate rings, 412 gaskets, 420 inner pipes, 430 inner pipe discs and 440 net covers.
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.
Example (b): as shown in fig. 1 to 6, a prefiltering collector for offshore water body detection, which is applied by combining accessories, can prefilter extracted offshore water, and transmits the filtered offshore water to a hanging bottle 400 through a guide tube 310, so that the offshore water is filtered again through a mesh enclosure 440, the offshore water entering the hanging bottle 400 is completely filtered, a non-impurity sample is provided for later detection, and the accuracy and the safety of the detection are ensured.
As shown in fig. 2, the sidewall of the connecting column 100 has a side column 110, two sides of the connecting column 100 are connected with the side column 110 by screw threads, two sides of the side column 110 are connected with an inserting column 120 by screw threads, the side column 110 is arranged to facilitate the insertion column 120 to be built in, and the inserting column 120 can be used to combine a plurality of side columns 110, so as to increase the usage of the transfusion bottle 400.
As shown in fig. 3 and 4, the side wall of the screw cap 200 is connected to the main pipe filter element 211, specifically, the side wall of the screw cap 200 is inserted with the main pipe 210, the main pipe filter element 211 is filled on the circumferential inner wall of the main pipe 210, the side wall of the main pipe 210 is inserted with the elastic hose 220, the end of the elastic hose 220 is adhered with the hose plug 221, the side wall of the hose plug 221 is inserted with the sub pipe 230, the auxiliary pipe filter element 231 is filled on the circumferential inner wall of the sub pipe 230, the side wall of the sub pipe 230 is connected with the screw column 240 in a threaded manner, the output end of the screw column 240 is inserted with the extraction pipe 250, and the main pipe filter element 211 and the sub pipe filter element 231 can be made.
The top and the spiral cover 200 combination of external pipe 300, it is specific, the external pipe 300 is taken over in the inside grafting of spliced pole 100, the top threaded connection spiral cover 200 of taking over 300 outward, the top of taking over 300 outward and the output threaded connection of spiral cover 200, the bottom threaded connection of taking over 300 outward has guide tube 310, in order to increase the drainage effect of spiral cover 200, can increase the extraction pump in the inside of spiral cover 200 to effectively shift the sea water, promote the transfer speed.
As shown in fig. 3 to 5, the top of the hanging bottle 400 is connected to the external connection pipe 300 through the guide pipe 310, specifically, the bottom of the external connection pipe 300 is inserted with the hanging bottle 400 through the guide pipe 310, the embedded top of the hanging bottle 400 is sleeved with the sleeve plate 410, the circumferential inner wall of the sleeve plate 410 is integrally formed to reserve the sleeve plate ring 411, the circumferential inner wall of the sleeve plate ring 411 is inserted with the inner pipe 420, the bottom of the inner pipe 420 is inserted with the inner pipe disc 430, the bottom of the sleeve plate 410 is bonded with the mesh enclosure 440, the circumferential outer wall of the inner pipe disc 430 is bonded with the circumferential inner wall of the mesh enclosure 440, the hanging bottle 400 may be made of glass bottle, and may also be flexibly adjusted according to actual needs.
When the offshore water filtering device is used specifically, the side columns 110 are connected to two sides of the connecting column 100, the embedded plate 130 is embedded in the connecting column 100, the external pipe 300 is inserted into the embedded plate 130, the top of the external pipe 300 is connected with the screw cap 200, the screw cap 200 is connected with the main pipe 210 with the main pipe filter element 211, the main pipe 210 is connected with the hose plug 221 through the elastic hose 220, the hose plug 221 is connected with the auxiliary pipe 230, the auxiliary pipe 230 is provided with the auxiliary pipe filter element 231, the offshore water extracted by the extracting pipe 250 can be transmitted to the auxiliary pipe 230 and then filtered, the offshore water can be transmitted to the external pipe 300 with the guide pipe 310 after the filtering of the main pipe 210 and the auxiliary pipe 230, and the tail end of the guide pipe 310 is inserted into the hanging bottle 400.
The inside lagging 410 that contains of transfusion bottle 400, the inside lagging ring 411 that has of lagging 410, can be effectively fixed to outer connecting tube 300, the end-to-end connection inner tube 420 of guide tube 310, screen panel 440 is cup jointed to the inner tube dish 430 outside of inner tube 420 bottom, the top and the lagging 410 bottom of screen panel 440 bond, form hourglass hopper-shaped structure, further filter, make the coastal waters that enter into in the transfusion bottle 400 filter completely, the detection in later stage provides no impurity sample, the accuracy and the security of detection have been guaranteed.
Referring to fig. 1 and 2, in order to increase the matching performance of the external connection tube 300 during plugging and facilitate adjustment, specifically, the bottom of the connection column 100 is embedded with an embedded plate 130, the embedded plate 130 is made of a hard rubber plate, and the embedded plate 130 is disposed to facilitate effective insertion of the external connection tube 300.
Referring to fig. 5 and 6, in order to increase the sealing performance of the sleeve ring 411 and facilitate the insertion of the inner pipe 420, specifically, the inner circumferential wall of the sleeve ring 411 is in contact with a gasket 412, and the gasket 412 is made of a hard rubber ring.
Referring to fig. 5, in order to improve the overall corrosion resistance of the material and ensure the rapid and effective filtration process, the offshore water body can be rapidly filtered, specifically, the inner pipe 420 and the inner pipe tray 430 are made of corrosion-resistant alloy pipes, and the mesh cover 440 is shaped as a funnel.
Referring to fig. 3 and 6, in order to increase the assemblability of the external connection pipe 300 and to enable the external connection pipe 300 to be suspended by using the hanging bottle 400 as a central point, specifically, a flange is screwed on the circumferential outer wall of the external connection pipe 300, and the circumferential inner wall of the gasket 412 is matched with the circumferential outer wall of the guide pipe 310.
Referring to fig. 3, in order to generate a plurality of samples and facilitate detection and data comparison, so as to increase the validity of data, specifically, the number of the screw caps 200, the external connection tube 300 and the hanging bottles 400 is three, and the three screw caps 200, the external connection tube 300 and the hanging bottles 400 are horizontally arranged.
While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the embodiments disclosed herein may be used in any combination, provided that there is no structural conflict, and the combinations are not exhaustively described in this specification merely for the sake of brevity and conservation of resources. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (7)
1. The utility model provides an offshore water body detects with prefiltering collector which characterized in that: the novel hanging bottle comprises a connecting column (100), a screw cap (200), an external connecting pipe (300) and a hanging bottle (400), wherein the connecting column (100) is connected with the external connecting pipe (300) in an inserting manner, the top of the external connecting pipe (300) is connected with the screw cap (200) in a threaded manner, the bottom of the external connecting pipe (300) is connected with a guide pipe (310) in a threaded manner, the bottom of the guide pipe (310) is connected with the hanging bottle (400) in an inserting manner, a main pipe (210) is connected with the side wall of the screw cap (200) in an inserting manner, a main pipe filter element (211) is filled on the circumferential inner wall of the main pipe (210), an elastic hose (220) is connected with the side wall of the main pipe (210) in an inserting manner, a hose plug (221) is bonded with the tail end of the elastic hose (220), an auxiliary pipe (230) is connected with the side wall of the auxiliary pipe (230) in an inserting manner, an auxiliary pipe filter element (231) is filled on the circumferential inner wall of the auxiliary pipe (230), and a spiral column (240) is connected with the side wall of the auxiliary pipe in a threaded manner, the screw column (240) is spliced with an extraction pipe (250), the external connection pipe (300) is in threaded connection with the screw cap (200), the infusion bottle (400) is sleeved with a sleeve plate (410), the circumferential inner wall of the sleeve plate (410) is integrally provided with a sleeve plate ring (411), the inner wall of the sleeve plate ring (411) is spliced with an inner pipe (420), the inner pipe (420) is spliced with an inner pipe disc (430), the bottom of the sleeve plate (410) is bonded with a mesh enclosure (440), and the circumferential outer wall of the inner pipe disc (430) is bonded with the circumferential inner wall of the mesh enclosure (440).
2. The pre-filter harvester for offshore water detection of claim 1, wherein: both sides threaded connection of spliced pole (100) has side post (110), the both sides threaded connection of side post (110) has inserted post (120).
3. The pre-filter harvester for offshore water detection of claim 2, wherein: the bottom of the connecting column (100) is embedded with an embedded plate (130), and the embedded plate (130) is made of a hard rubber plate.
4. The pre-filter harvester for offshore water detection of claim 1, wherein: the sleeve plate ring (411) is movably connected with a gasket (412), and the gasket (412) is a hard rubber ring.
5. The pre-filter harvester for offshore water detection of claim 1, wherein: the inner pipe (420) and the inner pipe disc (430) are both made of corrosion-resistant alloy pipes, and the mesh enclosure (440) is funnel-shaped.
6. The pre-filter harvester for offshore water detection of claim 1, wherein: the external connecting pipe (300) is in threaded connection with a flange.
7. The pre-filter harvester for offshore water detection of claim 1, wherein: the number of the screw caps (200), the external connecting pipes (300), the guide pipes (310) and the hanging bottles (400) is three, and the three screw caps (200), the external connecting pipes (300), the guide pipes (310) and the hanging bottles (400) are horizontally arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110746561.6A CN113181704B (en) | 2021-07-02 | 2021-07-02 | Pre-filtering collector for offshore water body detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110746561.6A CN113181704B (en) | 2021-07-02 | 2021-07-02 | Pre-filtering collector for offshore water body detection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113181704A true CN113181704A (en) | 2021-07-30 |
| CN113181704B CN113181704B (en) | 2021-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110746561.6A Active CN113181704B (en) | 2021-07-02 | 2021-07-02 | Pre-filtering collector for offshore water body detection |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10263334A (en) * | 1997-03-28 | 1998-10-06 | Duskin Co Ltd | Filth cleaning machine |
| JP2017146168A (en) * | 2016-02-16 | 2017-08-24 | 東洋濾紙株式会社 | Filtering collecting device |
| CN208579960U (en) * | 2018-06-29 | 2019-03-05 | 温州林信科技有限公司 | Sampler is used in a kind of processing of Portable sewage |
| CN209352648U (en) * | 2018-10-10 | 2019-09-06 | 郭楠 | Water intaking resampling filter device |
| CN210409813U (en) * | 2019-08-21 | 2020-04-28 | 周媛媛 | Water sample pretreatment water tank of automatic environmental water quality monitoring station |
| CN211311456U (en) * | 2020-07-23 | 2020-08-21 | 广州维帝医疗技术有限公司 | Water body microorganism sampler |
| CN212844535U (en) * | 2020-09-17 | 2021-03-30 | 湖北江铭建设工程有限公司 | Sampling device that municipal administration sewage treatment used |
| CN213091251U (en) * | 2020-09-09 | 2021-04-30 | 佛山市汇之源驿岗污水处理有限公司 | Sewage plant sampling device with impurity separation function |
-
2021
- 2021-07-02 CN CN202110746561.6A patent/CN113181704B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10263334A (en) * | 1997-03-28 | 1998-10-06 | Duskin Co Ltd | Filth cleaning machine |
| JP2017146168A (en) * | 2016-02-16 | 2017-08-24 | 東洋濾紙株式会社 | Filtering collecting device |
| CN208579960U (en) * | 2018-06-29 | 2019-03-05 | 温州林信科技有限公司 | Sampler is used in a kind of processing of Portable sewage |
| CN209352648U (en) * | 2018-10-10 | 2019-09-06 | 郭楠 | Water intaking resampling filter device |
| CN210409813U (en) * | 2019-08-21 | 2020-04-28 | 周媛媛 | Water sample pretreatment water tank of automatic environmental water quality monitoring station |
| CN211311456U (en) * | 2020-07-23 | 2020-08-21 | 广州维帝医疗技术有限公司 | Water body microorganism sampler |
| CN213091251U (en) * | 2020-09-09 | 2021-04-30 | 佛山市汇之源驿岗污水处理有限公司 | Sewage plant sampling device with impurity separation function |
| CN212844535U (en) * | 2020-09-17 | 2021-03-30 | 湖北江铭建设工程有限公司 | Sampling device that municipal administration sewage treatment used |
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| CN113181704B (en) | 2021-10-01 |
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Inventor after: Song Wei Inventor after: Pang Jinguang Inventor after: Wang Shuqiang Inventor before: Song Wei Inventor before: Feng Jinguang Inventor before: Wang Shuqiang |
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