CN111238879A - Wisdom water conservancy river supervisory control collector - Google Patents
Wisdom water conservancy river supervisory control collector Download PDFInfo
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- CN111238879A CN111238879A CN202010027369.7A CN202010027369A CN111238879A CN 111238879 A CN111238879 A CN 111238879A CN 202010027369 A CN202010027369 A CN 202010027369A CN 111238879 A CN111238879 A CN 111238879A
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- 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
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
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- 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
- G01N2001/021—Correlating sampling sites with geographical information, e.g. GPS
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- 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
- G01N2001/1031—Sampling from special places
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- 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
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
- G01N2001/1418—Depression, aspiration
- G01N2001/1427—Positive displacement, piston, peristaltic
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- Hydrology & Water Resources (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses an intelligent water conservancy river monitoring and controlling collector which comprises a floating plate, wherein the bottom of the floating plate is fixedly connected with a first motor through a bolt, one end of the first motor is rotatably connected with a paddle through a rotating shaft, the central position of the top of the floating plate is fixedly connected with an electric cabinet through a bolt, the bottom inside the electric cabinet is fixedly connected with a winding wheel support through a bolt, and the outer wall of one side of the winding wheel support is fixedly connected with a second motor through a bolt. This wisdom water conservancy river supervisory control collector through a plurality of sample storage pipes on the inside carousel of a section of thick bamboo, can save the water sample after gathering, and then realize once coming and going the water sample collection of different positions, the different degree of depth of in-process, improve the collection efficiency of collector, reduce the accident rate of collector, improve the life of collector, the piston plate through the over-and-under type realizes the collection and the discharge of water sample to the portable detection head of cooperation realizes the detection of water sample.
Description
Technical Field
The invention relates to the technical field of intelligent water conservancy, in particular to an intelligent water conservancy river monitoring control collector.
Background
The intelligent water conservancy utilizes advanced technologies such as internet, cloud computing and GIS to improve the management efficiency and social service level of water conservancy departments, promote water conservancy information construction and gradually realize information technology standardization, information acquisition automation, information transmission networking, information management integration, service processing intellectualization and government affair office electronization.
However, current rivers pollute seriously, in order to realize the control to the river, need regularly to carry out the sampling test to the rivers in the river mostly, current rivers water sample collector just need turn back after mostly can only carrying out the single sample and take out the water sample, still can cause the emergence probability of collector accident when collection efficiency is low, reduce life-span, current water quality collector can only carry out the collection of water sample, is difficult to realize on-line measuring, and is intelligent low.
Disclosure of Invention
The invention aims to provide an intelligent water conservancy river monitoring and controlling collector, and aims to solve the problems that the existing river water quality collector in the background technology is low in collecting efficiency, difficult to realize multiple times of sampling at different depths and different positions and difficult to realize water quality detection.
In order to achieve the purpose, the invention provides the following technical scheme: an intelligent water conservancy river monitoring and controlling collector comprises a floating plate, wherein the bottom of the floating plate is fixedly connected with a first motor through a bolt, one end of the first motor is rotatably connected with a paddle through a rotating shaft, the central position of the top of the floating plate is fixedly connected with an electric cabinet through a bolt, the inner bottom of the electric cabinet is fixedly connected with a winding wheel bracket through a bolt, the outer wall of one side of the winding wheel bracket is fixedly connected with a second motor through a bolt, one end of the second motor is rotatably connected with a winding wheel through a rotating shaft, a rope is wound on the outer wall of one side of the winding wheel, a lifting cylinder is welded at the bottom end of the rope, a fixed disc is fixedly connected onto the inner wall of one side of the lifting cylinder through a bolt, the central position of the bottom of the fixed disc is fixedly connected with a third motor through a bolt, and one end of the third motor, the top embedding of carousel has the sample tube of storage, there is the sampling tube through bolt fixed connection on one side outer wall of a lift section of thick bamboo.
Preferably, the top of the sampling tube is fixedly connected with a fourth motor through a bolt, and one end of the fourth motor is rotatably connected with a first lead screw through a rotating shaft.
Preferably, the outer wall of one side of the first screw rod is connected with a piston plate in a screwing mode through threads, and the bottom of the sampling cylinder is provided with a sampling tube.
Preferably, a sample outlet pipe is fixedly connected to the upper position, close to the sample storage pipe, of the outer wall of one side of the sampling cylinder through a bolt, and an electromagnetic valve is fixedly connected to the outer wall of one side of the sample outlet pipe through a bolt.
Preferably, the inner cylinder is fixedly connected to one side position, close to the sampling cylinder, on the inner wall of one side of the lifting cylinder through a bolt, and the fixing seat is welded to the top of the inner cylinder.
Preferably, the inside of fixing base is through bolt fixedly connected with fifth motor, the one end of fifth motor is rotated through the pivot and is connected with the second lead screw, be connected with through the screw thread closure on one side outer wall of second lead screw and detect the head.
Preferably, the outer side position department that the bottom of kickboard is close to a lift section of thick bamboo has the safety cover through bolt fixedly connected with, range sensor is installed to the bottom of kickboard.
Preferably, a soft rubber pad is arranged at the position, close to the upper part of the rotating disc, of the top of the interior of the lifting cylinder, and a sealing plug is embedded into the bottom of the soft rubber pad.
Preferably, the inside of the electric cabinet is fixedly connected with a storage battery, a controller, a wireless signal transceiver and a GPS (global positioning system) locator sequentially through bolts from left to right.
Preferably, the top embedding of kickboard has the bracing piece, the warning light is installed on the top of bracing piece, the inside embedding of kickboard has the flotation pontoon.
Compared with the prior art, the invention has the beneficial effects that: the intelligent water conservancy river monitoring and controlling collector can store collected water samples through the sample storage pipes on the rotary disc in the lifting cylinder, further realizes the collection of the water samples at different positions and different depths in one reciprocating process, improves the collection efficiency of the collector, reduces the accident rate of the collector, prolongs the service life of the collector, realizes the collection and the discharge of the water samples through the lifting piston plate, is matched with the movable detection head to realize the detection of the water samples, avoids the influence of the external environment on the water quality detection, improves the accuracy of the water quality detection data, simultaneously realizes the real-time detection of the water samples, improves the intellectualization and the monitoring capability of the collector, can realize the accurate mobile positioning of the collector through the wireless signal transceiver, the controller and the GPS positioner in the collector, and timely transmits the collection and monitoring information to a remote end, and then realize the information-based management processing of river control, realize wisdom water conservancy.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic view of the internal structure of the sampling tube of the present invention;
FIG. 3 is a schematic view of the internal structure of the inner cylinder of the present invention;
FIG. 4 is a top view of the turntable of the present invention;
FIG. 5 is a bottom view of the soft rubber pad of the present invention;
FIG. 6 is a schematic view of the internal structure of the floating plate according to the present invention.
In the figure: 1. a floating plate; 2. a first motor; 3. a paddle; 4. an electric cabinet; 5. a winding wheel bracket; 6. a second motor; 7. a winding wheel; 8. a rope; 9. a lifting cylinder; 10. fixing the disc; 11. a third motor; 12. a turntable; 13. a sample storage tube; 14. a sampling tube; 15. a fourth motor; 16. a first lead screw; 17. a piston plate; 18. a sampling tube; 19. a sample outlet pipe; 20. an electromagnetic valve; 21. an inner barrel; 22. a fixed seat; 23. a fifth motor; 24. a second lead screw; 25. a detection head; 26. a protective cover; 27. a soft rubber cushion; 28. a sealing plug; 29. a ranging sensor; 30. a storage battery; 31. a controller; 32. a wireless signal transceiver; 33. a GPS locator; 34. a support bar; 35. a warning light; 36. a float bowl.
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.
Referring to fig. 1-6, the present invention provides a technical solution: an intelligent water conservancy river monitoring control collector comprises a floating plate 1, a first motor 2, blades 3, an electric control box 4, a winding wheel bracket 5, a second motor 6, a winding wheel 7, a rope 8, a lifting cylinder 9, a fixed disc 10, a third motor 11, a rotary disc 12, a sample storage tube 13, a sampling cylinder 14, a fourth motor 15, a first lead screw 16, a piston plate 17, a sampling tube 18, a sample outlet tube 19, an electromagnetic valve 20, an inner cylinder 21, a fixed seat 22, a fifth motor 23, a second lead screw 24, a detection head 25, a protective cover 26, a soft rubber pad 27, 28, a distance measuring sensor 29, a storage battery 30, a controller 31, a wireless signal transceiver 32, a GPS (global positioning system) positioner 33, a support rod 34, a warning lamp 35 and a floating barrel 36, wherein the bottom of the floating plate 1 is fixedly connected with the first motor 2 through bolts, one end of the first motor 2 is rotatably connected with the blades 3 through a rotating shaft, the electric control box 4 is fixedly connected at the center of the top of the, inside bottom through bolt fixedly connected with rolling wheel support 5 of electric cabinet 4, through bolt fixedly connected with second motor 6 on the outer wall of one side of rolling wheel support 5, the one end of second motor 6 is rotated through the pivot and is connected with rolling wheel 7, around being equipped with rope 8 on the outer wall of one side of rolling wheel 7, the bottom welding of rope 8 has a lift section of thick bamboo 9, through bolt fixedly connected with fixed disk 10 on the inner wall of one side of lift section of thick bamboo 9, bolt fixedly connected with third motor 11 is passed through to the bottom central authorities position department of fixed disk 10, the one end of third motor 11 is rotated through the pivot and is connected with carousel 12, the top embedding of carousel 12 has sample storage tube 13, through bolt fixedly connected with sampling tube 14 on the outer wall of one side of lift section of thick bamboo.
Further, the top of the sampling tube 14 is fixedly connected with a fourth motor 15 through a bolt, one end of the fourth motor 15 is rotatably connected with a first lead screw 16 through a rotating shaft, so that the piston plate 17 can move on the first lead screw 16, and the lifting of the piston plate 17 is realized.
Further, a piston plate 17 is screwed on the outer wall of one side of the first screw rod 16, a sampling tube 18 is arranged at the bottom of the sampling tube 14, and water flow can be sucked and discharged by negative pressure suction force and thrust generated by the lifting of the piston plate 17.
Furthermore, a sample outlet tube 19 is fixedly connected to the outer wall of one side of the sampling tube 14 near the upper position of the sample storage tube 13 through a bolt, and an electromagnetic valve 20 is fixedly connected to the outer wall of one side of the sample outlet tube 19 through a bolt, so that the open circuit of the sample outlet tube 19 can be controlled conveniently.
Further, an inner cylinder 21 is fixedly connected to one side of the inner wall of one side of the lifting cylinder 9, which is close to the sampling cylinder 14, through bolts, and a fixing seat 22 is welded to the top of the inner cylinder 21, so that the detection head 25 can be conveniently stored.
Further, the inside of fixing base 22 is through bolt fixedly connected with fifth motor 23, and the one end of fifth motor 23 is rotated through the pivot and is connected with second lead screw 24, closes soon through the screw thread on one side outer wall of second lead screw 24 to be connected with and detects head 25, can realize the detection to quality of water through detecting head 25, realizes the control rivers state.
Furthermore, the outer side position that the bottom of kickboard 1 is close to lift section of thick bamboo 9 is located through bolt fixedly connected with safety cover 26, and range sensor 29 is installed to the bottom of kickboard 1, measures the descending height of lift section of thick bamboo 9, and then realizes the water sample collection of different water levels.
Furthermore, a soft rubber pad 27 is arranged at the position, close to the upper part of the rotating disc 12, of the top part of the interior of the lifting cylinder 9, and a sealing plug 28 is embedded into the bottom of the soft rubber pad 27, so that the sampling tube 18 can be conveniently sealed.
Furthermore, the inside of the electric cabinet 4 is fixedly connected with a storage battery 30, a controller 31, a wireless signal transceiver 32 and a GPS positioner 33 through bolts from left to right in sequence, so as to realize remote control and positioning.
Furthermore, the top of the floating plate 1 is embedded with a support rod 34, a warning lamp 35 is installed at the top end of the support rod 34, and a buoy 36 is embedded in the floating plate 1, so that the warning effect of the collector is improved.
The working principle is as follows: when the device is used, the floating plate 1 is placed on a river, the floating plate 1 floats on the river through the buoyancy of a buoy 36 in the floating plate 1, the first motor 2 drives the paddle 3 to rotate through the rotating shaft, the floating plate 1 moves through the rotation of the paddle 3, the floating plate 1 is moved to a position required to be monitored of the river through the GPS positioner 33 and the controller 31, the second motor 6 drives the winding wheel 7 to rotate through the rotating shaft, the rope 8 on the winding wheel 7 is loosened, the lifting cylinder 9 descends in the river, the descending depth of the lifting cylinder 9 is detected through the distance measuring sensor 29, the detection information is transmitted to the wireless signal transceiver 32 and finally transmitted to a remote end, after the lifting cylinder 9 descends to the required depth, the fourth motor 15 drives the first lead screw 16 to rotate through the rotating shaft, the first lead screw 16 is connected with the piston plate 17 in a screwing mode, and the piston plate 17 ascends and descends in the sampling cylinder 14, when the piston plate 17 rises, negative pressure suction is generated in the sampling tube 14, water in a river enters the sampling tube 14 through the sampling tube 18, the electromagnetic valve 20 is opened, water flows into the sample storage tube 13 through the sample outlet tube 19, the third motor 11 drives the rotary disc 12 to rotate by a set angle through the rotary shaft, the exchange of the positions of the sample storage tube 13 is realized, the sample storage tube 13 with a water sample is moved to the lower part of the sealing plug 28, the sample storage tube 13 is sealed by the sealing plug 28, water sample collection at different positions and different depths is realized through the plurality of sample storage tubes 13 on the rotary disc 12, when the sampling tube 14 is filled with water flow, the fifth motor 23 drives the second screw rod 24 to rotate through the rotary shaft, the detection head 25 enters the sampling tube 14 through the screwing connection of the second screw rod 24 and the detection head 25, and the detection of the water quality is realized.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents. .
Claims (10)
1. The utility model provides an wisdom water conservancy river monitoring control collector, includes kickboard (1), its characterized in that: the bottom of the floating plate (1) is fixedly connected with a first motor (2) through bolts, one end of the first motor (2) is connected with a paddle (3) through a rotating shaft in a rotating mode, the top central position of the floating plate (1) is fixedly connected with an electric cabinet (4) through bolts, the inner bottom of the electric cabinet (4) is fixedly connected with a winding wheel support (5) through bolts, a second motor (6) is fixedly connected onto the outer wall of one side of the winding wheel support (5) through bolts, one end of the second motor (6) is rotatably connected with a winding wheel (7) through a rotating shaft, a rope (8) is wound on the outer wall of one side of the winding wheel (7), a lifting cylinder (9) is welded at the bottom end of the rope (8), a fixed disk (10) is fixedly connected onto the inner wall of one side of the lifting cylinder (9), and a third motor (11) is fixedly connected onto the bottom central position of the fixed disk (10), the one end of third motor (11) is rotated through the pivot and is connected with carousel (12), the top embedding of carousel (12) has sample tube (13), through bolt fixedly connected with sampling tube (14) on the one side outer wall of a lift section of thick bamboo (9).
2. The intelligent water conservancy river monitoring and controlling collector as claimed in claim 1, wherein: the top of sampler barrel (14) is through bolt fixedly connected with fourth motor (15), the one end of fourth motor (15) is connected with first lead screw (16) through the pivot rotation.
3. The intelligent water conservancy river monitoring and controlling collector as claimed in claim 2, wherein: the outer wall of one side of the first lead screw (16) is connected with a piston plate (17) in a screwing mode through threads, and the bottom of the sampling tube (14) is provided with a sampling tube (18).
4. The intelligent water conservancy river monitoring and controlling collector as claimed in claim 1, wherein: the sampling device is characterized in that a sampling tube (19) is fixedly connected to the upper position, close to the sample storage tube (13), of the outer wall of one side of the sampling tube (14) through bolts, and an electromagnetic valve (20) is fixedly connected to the outer wall of one side of the sampling tube (19) through bolts.
5. The intelligent water conservancy river monitoring and controlling collector as claimed in claim 1, wherein: the sampling device is characterized in that an inner cylinder (21) is fixedly connected to one side position, close to the sampling cylinder (14), on the inner wall of one side of the lifting cylinder (9), and a fixing seat (22) is welded to the top of the inner cylinder (21).
6. The intelligent water conservancy river monitoring and controlling collector as claimed in claim 5, wherein: the inside of fixing base (22) is through bolt fixedly connected with fifth motor (23), the one end of fifth motor (23) is rotated through the pivot and is connected with second lead screw (24), it is connected with detection head (25) through the screw thread closure soon on one side outer wall of second lead screw (24).
7. The intelligent water conservancy river monitoring and controlling collector as claimed in claim 1, wherein: the outer side position department that the bottom of kickboard (1) is close to a lift section of thick bamboo (9) is through bolt fixedly connected with safety cover (26), range sensor (29) are installed to the bottom of kickboard (1).
8. The intelligent water conservancy river monitoring and controlling collector as claimed in claim 1, wherein: a soft rubber pad (27) is arranged at the position, close to the upper part of the rotary table (12), of the top of the interior of the lifting cylinder (9), and a sealing plug (28) is embedded into the bottom of the soft rubber pad (27).
9. The intelligent water conservancy river monitoring and controlling collector as claimed in claim 1, wherein: the inside of the electric cabinet (4) is fixedly connected with a storage battery (30), a controller (31), a wireless signal transceiver (32) and a GPS (global positioning system) locator (33) sequentially through bolts from left to right.
10. The intelligent water conservancy river monitoring and controlling collector as claimed in claim 1, wherein: the top embedding of kickboard (1) has bracing piece (34), warning light (35) are installed on the top of bracing piece (34), the inside embedding of kickboard (1) has flotation pontoon (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010027369.7A CN111238879A (en) | 2020-01-10 | 2020-01-10 | Wisdom water conservancy river supervisory control collector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010027369.7A CN111238879A (en) | 2020-01-10 | 2020-01-10 | Wisdom water conservancy river supervisory control collector |
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| CN111238879A true CN111238879A (en) | 2020-06-05 |
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| CN202010027369.7A Pending CN111238879A (en) | 2020-01-10 | 2020-01-10 | Wisdom water conservancy river supervisory control collector |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112180058A (en) * | 2020-09-29 | 2021-01-05 | 中新国际联合研究院 | Intelligent water quality monitoring device for aquaculture and using method |
| CN112284824A (en) * | 2020-10-16 | 2021-01-29 | 合肥市恒昌自动化控制有限责任公司 | Turbidity and suspended solid concentration measuring device |
| CN113029665A (en) * | 2021-01-12 | 2021-06-25 | 吴细宾 | Ecological environment monitoring facilities based on thing networking |
| CN113049312A (en) * | 2021-04-19 | 2021-06-29 | 中国计量大学 | Water sampling device for multi-depth water sample collection |
| CN113447001A (en) * | 2021-06-25 | 2021-09-28 | 杭州智川水利科技有限公司 | Hydraulic engineering hydrology detection device |
| CN114113517A (en) * | 2021-10-28 | 2022-03-01 | 江苏食品药品职业技术学院 | River and lake water quality inspection device and method |
| CN114136291A (en) * | 2022-01-30 | 2022-03-04 | 中国科学院西北生态环境资源研究院 | Hydrology monitoring device applied to river |
| CN114279760A (en) * | 2021-12-28 | 2022-04-05 | 海口市人民医院（中南大学湘雅医学院附属海口医院） | Reagent sampling device based on medical detection usefulness |
| CN114838996A (en) * | 2022-06-02 | 2022-08-02 | 金华市恒通工程检测有限公司 | Water conservancy detection multi-sample synchronous acquisition equipment and acquisition method thereof |
| CN115290399A (en) * | 2022-09-28 | 2022-11-04 | 恒天益科技（深圳）有限公司 | Floating type intelligent water affair monitoring equipment and monitoring method |
| CN117517003A (en) * | 2024-01-04 | 2024-02-06 | 南京市仪器仪表工业供销有限公司 | Sampling equipment for river water quality monitoring and sampling method thereof |
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| CN114279760A (en) * | 2021-12-28 | 2022-04-05 | 海口市人民医院（中南大学湘雅医学院附属海口医院） | Reagent sampling device based on medical detection usefulness |
| CN114279760B (en) * | 2021-12-28 | 2024-05-17 | 海口市人民医院（中南大学湘雅医学院附属海口医院） | Reagent sampling device based on medical science detects usefulness |
| CN114136291A (en) * | 2022-01-30 | 2022-03-04 | 中国科学院西北生态环境资源研究院 | Hydrology monitoring device applied to river |
| CN114838996A (en) * | 2022-06-02 | 2022-08-02 | 金华市恒通工程检测有限公司 | Water conservancy detection multi-sample synchronous acquisition equipment and acquisition method thereof |
| CN115290399A (en) * | 2022-09-28 | 2022-11-04 | 恒天益科技（深圳）有限公司 | Floating type intelligent water affair monitoring equipment and monitoring method |
| CN117517003A (en) * | 2024-01-04 | 2024-02-06 | 南京市仪器仪表工业供销有限公司 | Sampling equipment for river water quality monitoring and sampling method thereof |
| CN117517003B (en) * | 2024-01-04 | 2024-03-12 | 南京市仪器仪表工业供销有限公司 | Sampling equipment for river water quality monitoring and sampling method thereof |
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