CN107764601A - A kind of monitoring device of water quality of river Full automatic timing sampling - Google Patents
A kind of monitoring device of water quality of river Full automatic timing sampling Download PDFInfo
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- CN107764601A CN107764601A CN201710980170.4A CN201710980170A CN107764601A CN 107764601 A CN107764601 A CN 107764601A CN 201710980170 A CN201710980170 A CN 201710980170A CN 107764601 A CN107764601 A CN 107764601A
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- sampling
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- casing
- controller
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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
- G01N1/18—Devices for withdrawing samples in the liquid or fluent state with provision for splitting samples into portions
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of monitoring device of water quality of river Full automatic timing sampling, including chassis, the chassis is fixedly mounted on the ground, water quality automatic sampling monitoring casing is provided with above the chassis, one end is provided with device of solar generating in the casing, controller is provided with the casing, the signal receiving end of the controller is electrically connected with liquid level sensor one and liquid level sensor two, the power output end of the controller is electrically connected with water solenoid valve and magnetic valve, and power supply receiving terminal and the device of solar generating of the controller are electrically connected with.The invention has the advantages that it is simple in construction, it is practical.
Description
Technical field
The present invention relates to water quality monitoring apparatus field, particularly a kind of monitoring dress of water quality of river Full automatic timing sampling
Put.
Background technology
In environmentally friendly water quality monitoring, sampling is the first step of water quality monitoring, only accurately sampling, just can guarantee that water quality point
Analysis is smoothed out.Many sampling of water qualities are manually to be sampled using vial at this stage, and water quality detection generally requires to lead to
Water quality situation of the detection without the period is crossed, by being drawn a conclusion after contrast, and different time detection is manually repeated, frequently can lead to
Waste unnecessary artificial, waste sample time.
The content of the invention
The invention aims to solve the above problems, a kind of monitoring of water quality of river Full automatic timing sampling is devised
Device.
Realize above-mentioned purpose the technical scheme is that, a kind of monitoring device of water quality of river Full automatic timing sampling,
Including chassis, the chassis is fixedly mounted on the ground, and water quality automatic sampling monitoring casing, the water are provided with above the chassis
Matter automatic sampling monitor casing by be fixedly connected above chassis with chassis casing, be opened in entering for casing side surface
The mouth of a river, the delivery port being opened on bottom half side, the sampling water tank being fixedly connected at box house center with casing, open
Sampling water inlet at the upper side of sampling water tank, it is fixedly connected and and water inlet with sampling water inlet on sampling water inlet
The sampling water inlet pipe that is fixedly connected, the liquid level sensor one being fixedly connected positioned at sampling water tank inside upper surface with sampling water tank,
It is opened in the sampling water out of sampling water tank bottom side, is fixedly connected and with sampling water out with going out below sampling water out
Sampling outlet pipe that the mouth of a river is fixedly connected, the water solenoid valve being fixedly connected positioned at sampling outlet pipe with sampling outlet pipe, it is opened in
The automatic sampling device for sampling the sample tap at water tank bottom center and being fixedly connected below sample tap with sample tap is common
Form, the automatic sampling device by be fixedly connected with sample tap below the sample tap probe tube, positioned at probe tube lower section
The sampling branch pipe network that is fixedly connected with probe tube, it is uniformly distributed with what sampling branch pipe network was fixedly connected positioned at sampling branch pipe side off the net
Multiple sampling vertical tubes, with the magnetic valve that is fixedly connected of sampling vertical tube on sampling vertical tube and below sampling vertical tube with taking
The water sample storage tank that sample vertical tube is fixedly connected collectively forms, and the water sample storage tank positioned at sampling vertical tube lower end and sampling vertical tube by fixing
Connection and lower end are located at water sample storage tube outside casing, are fixedly connected positioned at water sample storage tube inside upper surface with water sample storage tube
Liquid level sensor two, be fixedly connected positioned at water sample storage tube lower end with water sample storage tube intake pipe, on intake pipe with
The valve that intake pipe is fixedly connected collectively forms, and one end is provided with device of solar generating in the casing, is provided with the casing
Controller, signal receiving end and the liquid level sensor one and liquid level sensor two of the controller are electrically connected with, the controller
Power output end and water solenoid valve and magnetic valve be electrically connected with, power supply receiving terminal and the solar power generation of the controller fill
Put electric connection.
The device of solar generating is consolidated by the solar panel being fixedly connected above casing with casing upper surface
Determine frame, the solar panel being fixedly connected on solar panel fixed mount with solar panel fixed mount, be located at
The box house other end be fixedly connected with casing and with solar panel be electrically connected with miniature photovoltaic controller, positioned at miniature
The batteries that photovoltaic controller side is fixedly connected with casing and is electrically connected with miniature photovoltaic controller collectively form.
It is described sampling branch pipe network by be fixedly connected positioned at probe tube lower end with probe tube multiple-pass joint, positioned at multiple-pass joint
The upper multiple sampling branch pipes being fixedly connected with more pain joints, it is fixedly connected between two sampling branch pipes with two sampling branch pipes
And be fixedly connected with sampling vertical tube multiple three-way connections, be fixedly connected with sampling branch pipe on sampling branch pipe and perpendicular with sampling
Multiple 90 ° of joints that pipe is fixedly connected collectively form.
The sampling water inlet pipe is provided with suction pump, and the power output end of the suction pump and controller is electrically connected with.
The sampling water inlet pipe is fixedly connected with external water source.
The sampling outlet pipe is fixedly connected with external water source.
The power supply receiving terminal of the batteries and controller is electrically connected with.
Timing sampling device is provided with the controller.
PLC system is provided with the controller.
The controller is provided with electric capacity display screen, control button and switching device.
The monitoring device that a kind of water quality of river Full automatic timing made using technical scheme is sampled, by setting
The multiple water sample storage tubes put, are controlled by controller, by the sampling of water quality of different periods to different water sample storage tubes, by
Controller records situations such as sample time, can greatly alleviate the workload of sampling personnel, the present apparatus is simple in construction, operation side
Just, production cost is low.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the monitoring device of water quality of river Full automatic timing sampling of the present invention；
Fig. 2 is the schematic diagram of sampling branch pipe network of the present invention；
Fig. 3 is the schematic diagram of controller of the present invention；
In figure, 1, chassis；2nd, casing；3rd, water inlet；4th, delivery port；5th, water tank is sampled；6th, water inlet is sampled；7th, sample into
Water pipe；8th, liquid level sensor one；9th, water out is sampled；10th, sampling outlet pipe；11st, water solenoid valve；12nd, sample tap；13rd, take
Sample pipe；14th, branch pipe network is sampled；15th, vertical tube is sampled；16th, magnetic valve；17th, water sample storage tube；18th, liquid level sensor two；19th, take
Water pipe；20th, valve；21st, controller；22nd, solar panel fixed mount；23rd, solar panel；24th, miniature photovoltaic control
Device；25th, batteries；26th, multiple-pass joint；27th, branch pipe is sampled；28th, three-way connection；29th, 90 ° of joints；30th, suction pump；31st, it is fixed
When sampler；32nd, PLC system；33rd, electric capacity display screen；34th, control button；35th, switching device.
Embodiment
The present invention is specifically described below in conjunction with the accompanying drawings, as Figure 1-3, a kind of water quality of river Full automatic timing takes
The monitoring device of sample, including chassis 1, the chassis 1 are fixedly mounted on the ground, and the top of chassis 1 takes automatically provided with water quality
Sample monitors casing, water quality automatic sampling monitoring casing by be fixedly connected above chassis 1 with chassis 1 casing 2, be opened in
The water inlet 3 of the side surface of casing 2, the delivery port 4 being opened in the bottom side of casing 2, at the inside center of casing 2 on
Sampling water tank 5 that side is fixedly connected with casing 2, it is opened in and samples sampling water inlet 6 at the upper side of water tank 5, enters positioned at sampling water
The sampling water inlet pipe 7 that is fixedly connected with sampling water inlet 6 on mouthfuls 6 and is fixedly connected with water inlet 3, inside sampling water tank 5
Upper surface with sampling water tank 5 be fixedly connected liquid level sensor 1, be opened in sampling the bottom side of water tank 5 sampling water out 9,
Positioned at the lower section of sampling water out 9 with sampling the sampling outlet pipe 10, position that water out 9 is fixedly connected and is fixedly connected with delivery port 4
The water solenoid valve 11 that is fixedly connected in sampling outlet pipe 10 with sampling outlet pipe 10, it is opened at sampling water tank 5 bottom centre
Sample tap 12 and the automatic sampling device being fixedly connected below sample tap 12 with sample tap 12 collectively form, described to take automatically
Sampling device by be fixedly connected positioned at the lower section of sample tap 12 with sample tap 12 probe tube 13, below probe tube 13 and probe tube
The 13 sampling branch pipe networks 14 being fixedly connected, it is uniformly distributed below sampling branch pipe network 14 with what sampling branch pipe network 14 was fixedly connected
Multiple sampling vertical tubes 15, on sampling vertical tube 15 with the magnetic valve 16 that is fixedly connected of sampling vertical tube 15 and positioned at sampling vertical tube
The water sample storage tank that 15 lower sections are fixedly connected with sampling vertical tube 15 collectively forms, and the water sample storage tank is by positioned at sampling vertical tube 15 lower end
It is fixedly connected with sampling vertical tube 15 and lower end is located at water sample storage tube 17 outside casing 2, positioned at the inside upper table of water sample storage tube 17
It is liquid level sensor 2 18 that face is fixedly connected with water sample storage tube 17, solid positioned at the lower end of water sample storage tube 17 and water sample storage tube 17
Surely the intake pipe 19 connected, the valve 20 being fixedly connected on intake pipe 19 with intake pipe 19 collectively form, in the casing 2
One end is provided with device of solar generating, and controller 21, the signal receiving end and liquid level of the controller 21 are provided with the casing 2
Sensor one and liquid level sensor two are electrically connected with, power output end and the water solenoid valve and magnetic valve electricity of the controller 21
Property connection, the power supply receiving terminal of the controller 21 is electrically connected with device of solar generating；The device of solar generating by
The solar panel fixed mount 22 that is fixedly connected above casing 2 with the upper surface of casing 2, fix positioned at solar panel
The solar panel 23 that is fixedly connected on frame 22 with solar panel fixed mount 22, positioned at the inside other end of casing 2 and case
Body 2 be fixedly connected and with solar panel 23 be electrically connected with miniature photovoltaic controller 24, positioned at miniature photovoltaic controller 24
The batteries 25 that side is fixedly connected with casing 2 and is electrically connected with miniature photovoltaic controller 24 collectively form；The sampling
Branch pipe network 14 by be fixedly connected positioned at the lower end of probe tube 13 with probe tube 13 multiple-pass joint 26, on multiple-pass joint 26 with it is more
Multiple sampling branch pipes 27 that pain joint 26 is fixedly connected, fix and connect with two sampling branch pipes 27 between two sampling branch pipes 27
Connect and with sampling vertical tube 15 be fixedly connected multiple three-way connections 28, positioned at sampling branch pipe 27 on sampling branch pipe 27 be fixedly connected
And collectively formed with multiple 90 ° of joints 29 that sampling vertical tube 15 is fixedly connected；The sampling water inlet pipe 7 is provided with suction pump 30,
The power output end of the suction pump 30 and controller 21 is electrically connected with；The sampling water inlet pipe 7 is fixedly connected with external water source；
The sampling outlet pipe 10 is fixedly connected with external water source；The batteries 25 and the power supply receiving terminal of controller 21 electrically connect
Connect；Timing sampling device 31 is provided with the controller 21；PLC system 32 is provided with the controller 21；The controller 21
It is provided with electric capacity display screen 33, control button 34 and switching device 35.
The characteristics of the present embodiment is that water quality automatic sampling monitoring casing, the monitoring of water quality automatic sampling are provided with above chassis
Casing by be fixedly connected above chassis with chassis casing, be opened in the water inlet of casing side surface, be opened in casing
Delivery port in bottom side, the sampling water tank being fixedly connected at box house center with casing, it is opened on sampling water tank
The sampling water inlet of square side, it is fixedly connected and what is be fixedly connected with water inlet takes with sampling water inlet on sampling water inlet
Sample water inlet pipe, the liquid level sensor one being fixedly connected positioned at sampling water tank inside upper surface with sampling water tank, it is opened in sampling water tank
The sampling water out of bottom side, it is fixedly connected with sampling water out below sampling water out and is fixedly connected with delivery port
Sampling outlet pipe, be fixedly connected positioned at sampling outlet pipe with sampling outlet pipe water solenoid valve, be opened in sampling water tank bottom
Sample tap at center and the automatic sampling device being fixedly connected below sample tap with sample tap collectively form, automatic sampling
Device by be fixedly connected with sample tap below the sample tap probe tube, be fixedly connected with probe tube positioned at probe tube lower section
Sampling branch pipe network, the equally distributed multiple sampling vertical tubes being fixedly connected positioned at sampling branch pipe side off the net with sampling branch pipe network, position
In what is be fixedly connected with the magnetic valve that is fixedly connected of sampling vertical tube on sampling vertical tube and below sampling vertical tube with sampling vertical tube
Water sample storage tank collectively forms, and water sample storage tank is by positioned at sampling, vertical tube lower end is fixedly connected with sampling vertical tube and lower end is located at outside casing
Water sample storage tube, be fixedly connected positioned at water sample storage tube inside upper surface with water sample storage tube liquid level sensor two, be located at
Intake pipe that water sample storage tube lower end is fixedly connected with water sample storage tube, the valve being fixedly connected on intake pipe with intake pipe
Collectively form, one end is provided with device of solar generating in casing, device of solar generating by above casing with casing upper table
Solar panel fixed mount that face is fixedly connected, consolidate on solar panel fixed mount with solar panel fixed mount
Surely the solar panel that connects, it is fixedly connected with casing positioned at the box house other end and is electrically connected with solar panel
Miniature photovoltaic controller, be fixedly connected with casing positioned at miniature photovoltaic controller side and electrically connect with miniature photovoltaic controller
The batteries connect collectively form, and by the multiple water sample storage tubes set, are controlled by controller, by the water quality of different periods
Be sampled in different water sample storage tubes, by controller record sample time situations such as, can greatly alleviate sampling personnel's
Workload, the present apparatus is simple in construction, easy to operate, and production cost is low.
In the present embodiment, equipment is installed, by controlling the switching device starting device on controller, controller
Start to control device of solar generating to generate electricity to batteries, controller is controlled by the timing sampling device of inside and taken
Sample, when needing sampling, controller control suction pump is started working, and water is pumped into sampling water tank by suction pump, now controller
Control water solenoid valve is stopped, while controls the magnetic valve above labeled water sample storage tube to start working, Xiang Shui
Water filling in sample storage tube, the liquid level in water sample storage tube is detected by liquid level sensor two, when liquid level reaches setting value, control
Device automatically controls magnetic valve and is stopped, and now controller control suction pump is stopped, while liquid level sensor is examined at the beginning
The water level in sample water tank is measured, controller control water solenoid valve is started working, the water sampled in water tank is discharged to outside casing,
When the water level that liquid level sensor one is detected in sampling water tank is zero, controller control water solenoid valve is stopped, simultaneously
Control other devices standby, after sample time next time arrives, controller marks next water sample storage tube to repeat above-mentioned behaviour
Make, after water sample storage tube gross sample, controller closes whole device automatically by controlling switch device, when staff
When water sample is taken away, staff is walked the record copy content of controller by the electric capacity display screen on controller.
Above-mentioned technical proposal only embodies the optimal technical scheme of technical solution of the present invention, those skilled in the art
Some variations that some of which part may be made are embodied the present invention principle, belong to protection scope of the present invention it
It is interior.
Claims (10)
1. a kind of monitoring device of water quality of river Full automatic timing sampling, including chassis (1), it is characterised in that the chassis (1)
It is fixedly mounted on the ground, water quality automatic sampling monitoring casing, the water quality automatic sampling monitoring is provided with above the chassis (1)
Casing by be fixedly connected with chassis (1) above the chassis (1) casing (2), be opened in the water inlet of casing (2) side surface
Mouth (3), the delivery port (4) being opened in casing (2) bottom side, top and casing (2) are fixed at casing (2) inside center
The sampling water tank (5) of connection, the sampling water inlet (6) being opened at the upper side of sampling water tank (5), on sampling water inlet (6)
The sampling water inlet pipe (7) that is fixedly connected with sampling water inlet (6) and is fixedly connected with water inlet (3), in sampling water tank (5)
Portion upper surface with sampling water tank (5) be fixedly connected liquid level sensor one (8), be opened in sampling water tank (5) bottom side sampling
Water out (9), it is fixedly connected and is fixedly connected with delivery port (4) with sampling water out (9) below sampling water out (9)
Sampling outlet pipe (10), the water solenoid valve (11) being fixedly connected positioned at sampling outlet pipe (10) with sampling outlet pipe (10), open
It is fixedly connected in the sample tap (12) at place of sampling water tank (5) bottom centre and positioned at sample tap (12) lower section with sample tap (12)
Automatic sampling device collectively forms, and the automatic sampling device below sample tap (12) with sample tap (12) by being fixedly connected
Probe tube (13), be fixedly connected with probe tube (13) below the probe tube (13) sampling branch pipe network (14), positioned at sampling
Equally distributed multiple sampling vertical tubes (15) for being fixedly connected with sampling branch pipe network (14) below branch pipe network (14), erect positioned at sampling
On pipe (15) with sampling vertical tube (15) magnetic valve (16) that is fixedly connected and below sampling vertical tube (15) with sampling vertical tube
(15) the water sample storage tank being fixedly connected collectively forms, and the water sample storage tank is by positioned at sampling vertical tube (15) lower end and sampling vertical tube
(15) it is fixedly connected and lower end is located at the outer water sample storage tube (17) of casing (2), positioned at water sample storage tube (17) inside upper surface
The liquid level sensor two (18) that is fixedly connected with water sample storage tube (17), positioned at water sample storage tube (17) lower end and water sample storage tube
(17) intake pipe (19) being fixedly connected, valve (20) the common structure being fixedly connected on intake pipe (19) with intake pipe (19)
Into the interior one end of the casing (2) is provided with device of solar generating, and controller (21), the controller are provided with the casing (2)
(21) signal receiving end is electrically connected with liquid level sensor one and liquid level sensor two, the power supply output of the controller (21)
End is electrically connected with water solenoid valve and magnetic valve, and the power supply receiving terminal and device of solar generating of the controller (21) are electrical
Connection.
2. the monitoring device of a kind of water quality of river Full automatic timing sampling according to claim 1, it is characterised in that described
Device of solar generating is by the solar panel fixed mount that is fixedly connected with casing (2) upper surface above the casing (2)
(22), the solar power generation being fixedly connected on solar panel fixed mount (22) with solar panel fixed mount (22)
Plate (23), it is fixedly connected with casing (2) positioned at the internal other end of casing (2) and micro- with solar panel (23) electric connection
Type photovoltaic controller (24), it is fixedly connected with casing (2) positioned at miniature photovoltaic controller (24) side and is controlled with miniature photovoltaic
The batteries (25) that device (24) is electrically connected with collectively form.
3. the monitoring device of a kind of water quality of river Full automatic timing sampling according to claim 1, it is characterised in that described
Sampling branch pipe network (14) by be fixedly connected positioned at probe tube (13) lower end with probe tube (13) multiple-pass joint (26), positioned at lead to
Multiple sampling branch pipes (27) for being fixedly connected on joint (26) with more pain joints (26), between two sampling branch pipes (27) with
Two sampling branch pipes (27) be fixedly connected and with sampling vertical tube (15) be fixedly connected multiple three-way connections (28), positioned at sampling branch
The common structure of multiple 90 ° of joints (29) for being fixedly connected with sampling branch pipe (27) on pipe (27) and being fixedly connected with sampling vertical tube (15)
Into.
4. the monitoring device of a kind of water quality of river Full automatic timing sampling according to claim 1, it is characterised in that described
Sampling water inlet pipe (7) is provided with suction pump (30), and the suction pump (30) and the power output end of controller (21) are electrically connected with.
5. the monitoring device of a kind of water quality of river Full automatic timing sampling according to claim 1, it is characterised in that described
Sampling water inlet pipe (7) is fixedly connected with external water source.
6. the monitoring device of a kind of water quality of river Full automatic timing sampling according to claim 1, it is characterised in that described
Sampling outlet pipe (10) is fixedly connected with external water source.
7. the monitoring device of a kind of water quality of river Full automatic timing sampling according to claim 2, it is characterised in that described
Batteries (25) and the power supply receiving terminal of controller (21) are electrically connected with.
8. the monitoring device of a kind of water quality of river Full automatic timing sampling according to claim 1, it is characterised in that described
Timing sampling device (31) is provided with controller (21).
9. the monitoring device of a kind of water quality of river Full automatic timing sampling according to claim 1, it is characterised in that described
PLC system (32) is provided with controller (21).
A kind of 10. monitoring device of water quality of river Full automatic timing sampling according to claim 1, it is characterised in that institute
State controller (21) and be provided with electric capacity display screen (33), control button (34) and switching device (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710980170.4A CN107764601A (en) | 2017-10-19 | 2017-10-19 | A kind of monitoring device of water quality of river Full automatic timing sampling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710980170.4A CN107764601A (en) | 2017-10-19 | 2017-10-19 | A kind of monitoring device of water quality of river Full automatic timing sampling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107764601A true CN107764601A (en) | 2018-03-06 |
Family
ID=61269790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710980170.4A Pending CN107764601A (en) | 2017-10-19 | 2017-10-19 | A kind of monitoring device of water quality of river Full automatic timing sampling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107764601A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112444432A (en) * | 2020-11-13 | 2021-03-05 | 安徽省（水利部淮河水利委员会）水利科学研究院（安徽省水利工程质量检测中心站） | Timing-interval continuous automatic water sampling device |
| CN114705819A (en) * | 2022-04-27 | 2022-07-05 | 江西省水产科学研究所(江西省鄱阳湖渔业研究中心、江西省渔业资源生态环境监测中心) | Device and method for monitoring water quality of net cage for breeding Jiangjiang Jiangtiangu porpoise |
| CN115931468A (en) * | 2022-12-19 | 2023-04-07 | 上海海关机电产品检测技术中心 | Water intaking device for rinsing performance test of cleaning equipment |
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| CN104483163A (en) * | 2014-11-27 | 2015-04-01 | 苏州市职业大学 | Automatic water quality sampling device |
| CN104677947A (en) * | 2015-03-06 | 2015-06-03 | 中国地质大学（武汉） | Full-automatic alarm for online water quality monitoring |
| CN107132328A (en) * | 2017-06-05 | 2017-09-05 | 防城港市水利水电勘测设计院 | A kind of Reservoir Water Quality monitoring device |
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| CN101509849A (en) * | 2009-03-24 | 2009-08-19 | 广州市城市排水监测站 | Pretreatment pipe system for on-line monitoring of water quality and quantity |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112444432A (en) * | 2020-11-13 | 2021-03-05 | 安徽省（水利部淮河水利委员会）水利科学研究院（安徽省水利工程质量检测中心站） | Timing-interval continuous automatic water sampling device |
| CN114705819A (en) * | 2022-04-27 | 2022-07-05 | 江西省水产科学研究所(江西省鄱阳湖渔业研究中心、江西省渔业资源生态环境监测中心) | Device and method for monitoring water quality of net cage for breeding Jiangjiang Jiangtiangu porpoise |
| CN115931468A (en) * | 2022-12-19 | 2023-04-07 | 上海海关机电产品检测技术中心 | Water intaking device for rinsing performance test of cleaning equipment |
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Application publication date: 20180306 |
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