CN207163757U - A kind of monitoring water quality on line pre-processes sampling system - Google Patents
A kind of monitoring water quality on line pre-processes sampling system Download PDFInfo
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- CN207163757U CN207163757U CN201721201913.5U CN201721201913U CN207163757U CN 207163757 U CN207163757 U CN 207163757U CN 201721201913 U CN201721201913 U CN 201721201913U CN 207163757 U CN207163757 U CN 207163757U
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Abstract
The utility model discloses a kind of monitoring water quality on line to pre-process sampling system, including inlet pipeline, water quality testing meter sampling pipe, distribution pipeline, the first overflow passage and the second overflow passage；The inlet pipeline is vertically-mounted, and inlet pipeline lower end is carried out water lines with outside and is connected；The water quality testing meter sampling pipe is arranged in inlet pipeline；The distribution pipeline lower end is connected to inlet pipeline, and one end of the first overflow passage is connected with inlet pipeline top, and the other end is connected to distribution pipeline, and second overflow passage one end is connected to the first overflow passage, the externally connected outlet pipeline of the other end.The monitoring water quality on line pre-processes sampling system, by setting distribution pipeline, makes have liquid flowing in pipeline always, can effectively avoid the blocking in silting up property impurity more scene lower pipeline, especially horizontal pipeline.
Description
Technical field
Water quality monitoring technical field is the utility model is related to, specifically a kind of monitoring water quality on line pretreatment sampling system.
Background technology
While rapid economic development, environmental problem also getting worse, in order to be better achieved to various in water environment
The supervision and control of pollutant, country and various regions government have put into effect multinomial policy, have taken various measures, and are mounted with substantial amounts of
Water quality on-line automatic analyzer.And in monitoring water quality on line industry, in-line analyzer generally uses point in China market
Light photometry, anodic stripping voltammetry etc., in the Meter Test of these types, water body environment is to on-line monitoring instrument measured value
Stability and accuracy have the influence of key.In order to in-line analyzer of increasing water quality application adaptability, it is necessary to be equipped with pre- place
Reason system.
It is usually to extract water sample to be tested into preprocessor by outer water pump to pre-process sampling system, is filled by pre-processing
Standing, filtering etc. are put, the solid matters such as the bulky grain insoluble matter in water sample to be tested, mud, suspension is settled or is filtered
Fall, suitable water sample to be analyzed is provided for water quality online analyzer device.
The most of water sample pretreatment system applied in the market, is generally provided with different water inlets and water outlet
Mouth and one or more levels filtering, sample to be measured enters sampling from water inlet, is water quality after strainer filtering
In-line analyzer provides suitable water sample to be tested, and Yu Shui drains from delivery port.This scheme have it is several be difficult to overcome lack
Point：
1st, because water inlet and delivery port are the different mouths of pipe, water inlet is used as water inlet for a long time, may be because of long-term particle
Accumulation of pollutants and cause to block, increase maintenance cost.
2nd, outside come water lines generally be horizontally mounted, during being stood to water sample to be measured, water pipe is carried out in outside
Water body in road no longer flows, when silting up property impurity is more in water body environment easily level outside water pipeline blockage,
Greatly increase the cost of maintenance.
3rd, inconvenience is dismounted between each part of pretreatment system, in use, can not be quick if having damage parts
Maintenance and replacing.
Utility model content
The purpose of this utility model is to provide a kind of monitoring water quality on line pretreatment sampling system, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the utility model provides following technical scheme：
A kind of monitoring water quality on line pre-processes sampling system, including inlet pipeline, water quality testing meter sampling pipe, isocon
Road, the first overflow passage and the second overflow passage；The inlet pipeline is vertically-mounted, and water lines are carried out in inlet pipeline lower end with outside
It is connected；The inlet pipeline includes main standpipe；The water quality testing meter sampling pipe is arranged in inlet pipeline, and water quality is examined
The lower end for surveying instrument sampling pipe is extended in main standpipe, and water quality testing meter sampling pipe top is connected to water quality online analyzer；Institute
State distribution pipeline lower end and be connected to inlet pipeline；One end of first overflow passage is connected with inlet pipeline top, another
Hold and be connected to distribution pipeline, the junction of the first overflow passage and inlet pipeline is located above main standpipe；Second overflow
Pipeline one end is connected to the first overflow passage, the externally connected outlet pipeline of the other end, the second overflow passage and the first overflow pipe
The junction on road is located above the second articulation, and horizontal plane is high where second overflow passage and the first overflow passage junction
The horizontal plane where water quality testing meter sampling pipe end.
As further program of the utility model：The inlet pipeline lower end connects outside water by the first articulation
Pipeline；It is connected between first overflow passage and distribution pipeline by the second articulation；Second overflow passage with it is outer
It is connected between portion's outlet pipeline by the 3rd articulation.
As the utility model further scheme：The distribution pipeline is laterally picked out by the threeway A on inlet pipeline；
First overflow passage is laterally picked out by the threeway B on inlet pipeline；Second overflow passage is by the first overflow passage
Threeway C laterally pick out.
As the utility model further scheme：Also include motor-driven valve, the motor-driven valve is arranged under inlet pipeline
Portion, main standpipe is located above motor-driven valve, and the junction of distribution pipeline and inlet pipeline is located at the lower section of motor-driven valve, the electricity
Dynamic valve is electrical ball valve；The latus rectum of the motor-driven valve is consistent with the internal diameter of main standpipe；Hand is additionally provided with the distribution pipeline
Dynamic valve；The hand-operated valve is manual ball valve.
As the utility model further scheme：The inlet pipeline upper end is provided with modular connection, inlet pipeline
Water quality testing meter sampling pipe is installed by modular connection.
As the utility model further scheme：The inlet pipeline, distribution pipeline, the first overflow passage and second
The material of overflow passage is PVC or UPVC；The length of the main standpipe is 10-60cm；The main standpipe is transparent pipe.
As the utility model further scheme：Also include first filter, first filter is examined installed in water quality
Survey outside instrument sampling pipe lower end.
As the utility model further scheme：The filter screen mesh number of the first filter is 30-150 mesh.
As the utility model further scheme：Also include the second filter, the second filter is arranged on water inlet pipe
Road top, and water quality testing meter sampling pipe is divided into the second filter into down-sampling pipe and up-sampling is managed, on the downside of the second filter
Water inlet end is connected with down-sampling pipe, and water side is connected with up-sampling pipe on the upside of the second filter.
As the utility model further scheme：The filter screen mesh number of second filter is 80-200 mesh.
Compared with prior art, the beneficial effects of the utility model are：
The monitoring water quality on line pre-processes sampling system, reasonable in design, and it is convenient that installation is laid, simple to operate, dependable performance.
Its major advantage is：1) material is easy to get, easy for installation, in use, if can rapid-maintenance and more when having damage parts
Change；2) vertically-mounted, water inlet also serves as delivery port, effectively lowers the blocked risk of inlet pipeline；3) work of distribution pipeline
With making have liquid flowing in pipeline always, can effectively avoid in the more scene lower pipeline of silting up property impurity, especially horizontal tube
The blocking on road；4) can be compatible without scenes such as filter, by-pass filtration, secondary filtrations.5) effect of two sections of overflow passages, ensure
Water sample pipe can be completely submerged in below water sample liquid level, to ensure that smoothly extracting water sample is tested.6) it can strengthen standing and sink
The effect of drop, it can effectively reduce damage of the solid particulate matter to in-line analyzer.
Brief description of the drawings
Fig. 1 is the structural representation that monitoring water quality on line pre-processes sampling system.
In figure：The articulations of 1- the 3rd, the articulations of 2- first, 3- inlet pipelines, 4- threeway A, 5- motor-driven valve, the main water storages of 6-
Pipe, 7- first filters, 8- water quality testing meters sampling pipe, the filter of 9- threeways B, 10- second, 11- modular connections, 12- shuntings
Pipeline, 13- hand-operated valves, the articulations of 14- second, the overflow passage of 15- threeways C, 16- first, the overflow passages of 17- second.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Embodiment 1
A kind of monitoring water quality on line pre-processes sampling system, including inlet pipeline 3, motor-driven valve 5, water quality testing meter sampling pipe
8th, distribution pipeline 12, the first overflow passage 16 and the second overflow passage 17；The inlet pipeline 3 is vertically-mounted, under inlet pipeline 3
End is carried out water lines with outside and is connected, and outside is carried out water lines water in future and is sent into inlet pipeline 3, and water lines and water inlet pipe are come in outside
Connected mode between road 3 is without restriction, in the present embodiment, it is preferred that the lower end of inlet pipeline 3 passes through the first articulation 2
Water lines are carried out in connection outside, and outside is connected come water lines with inlet pipeline 3 by the first articulation 2, are easy to dismounting to overhaul,
Inlet pipeline 3 is vertically-mounted, and its water inlet is also delivery port simultaneously, can be to greatest extent by water inlet when test terminates emptying
Remaining water in pipeline 3 and the discharge of unnecessary particulate matter, the finite reduction blocked risk of water inlet；
The motor-driven valve 5 is arranged on the bottom of inlet pipeline 3, and the inlet pipeline 3 includes main standpipe 6, main standpipe 6
Above motor-driven valve 5, motor-driven valve 5 is used for the water inlet for controlling main standpipe 6, and the particular type of motor-driven valve 5 is without restriction, this implementation
In example, it is preferred that the motor-driven valve 5 is electrical ball valve；The water quality testing meter sampling pipe 8 is arranged in inlet pipeline 3, and water
The lower end of quality detection instrument sampling pipe 8 is extended in main standpipe 6, and the top of water quality testing meter sampling pipe 8 is connected to water quality and divided online
Analyzer, the connected mode of water quality testing meter sampling pipe 8 and inlet pipeline 3 is without restriction, in the present embodiment, it is preferred that it is described enter
The upper end of water lines 3 is provided with modular connection 11, and inlet pipeline 3 installs water quality testing meter sampling pipe 8 by modular connection 11；
The lower end of distribution pipeline 12 is connected to inlet pipeline 3, and the junction of distribution pipeline 12 and inlet pipeline 3 is located at
The lower section of motor-driven valve 5, when needing sample introduction, motor-driven valve 5 is opened, outside is carried out water lines water in future and is sent into inlet pipeline 3, and then
Into in the main standpipe 6 of inlet pipeline 3, after sample introduction, motor-driven valve 5 is closed, the water sample in main standpipe 6 is stood, in this
Meanwhile the water of water lines is carried out through the feeding distribution pipeline 12 of inlet pipeline 3 in outside, so that during water sample is stood, still
The water flowing for keeping outside to come in water lines, silting up property impurity is substantially reduced by the probability of outside water pipeline blockage, shunting
The specific mounting means of pipeline 12 is without restriction, in the present embodiment, it is preferred that the distribution pipeline 12 is by inlet pipeline 3
Threeway A 4 is laterally picked out；Hand-operated valve 13 is additionally provided with the distribution pipeline 12, during the sample introduction of inlet pipeline 3, is passed through
Control hand-operated valve 13 can just control the sample introduction uninterrupted of inlet pipeline 3, and the type of hand-operated valve 13 is without restriction, the present embodiment
In, it is preferred that the hand-operated valve 13 is manual ball valve；
One end of first overflow passage 16 is connected with the top of inlet pipeline 3, and the other end is connected to distribution pipeline 12,
Unnecessary water exports through the first overflow passage 16 in inlet pipeline 3, and converges with distribution pipeline 12, and the first overflow passage 16 is with entering
The junction of water lines 3 is not added with limiting positioned at the main top of standpipe 6, the connected mode of the first overflow passage 16 and distribution pipeline 12
Make, in the present embodiment, it is preferred that be connected between first overflow passage 16 and distribution pipeline 12 by the second articulation 14
Connect, first overflow passage 16 is connected with distribution pipeline 12 by the second articulation 14, be easy to dismounting to overhaul, the first overflow pipe
The specific mounting means on road 16 is without restriction, in the present embodiment, it is preferred that first overflow passage 16 is by inlet pipeline 3
Threeway B 9 laterally pick out；
Described one end of second overflow passage 17 is connected to the first overflow passage 16, the externally connected outlet pipeline of the other end,
The junction of second overflow passage 17 and the first overflow passage 16 is located at the top of the second articulation 14, in order to ensure water quality testing meter
The end of sampling pipe 8 is necessarily immersed in below water sample liquid level, to ensure smoothly to adopt water sample, second overflow passage 17
With horizontal plane where the junction of the first overflow passage 16 higher than horizontal plane where the end of water quality testing meter sampling pipe 8, the second overflow
The specific mounting means of pipeline 17 is without restriction, in the present embodiment, it is preferred that second overflow passage 17 is by the first overflow pipe
Threeway C 15 on road 16 is laterally picked out, and the connected mode of the second overflow passage 17 and outside outlet pipeline is without restriction, this reality
Apply in example, it is preferred that be connected between second overflow passage 17 and outside outlet pipeline by the 3rd articulation 1, passed through
Second overflow passage 17 is connected by the 3rd articulation 1 with outside outlet pipeline, is easy to dismounting to overhaul.
The inlet pipeline 3, distribution pipeline 12, the material of the first overflow passage 16 and the second overflow passage 17 are not added with limiting
Make, in the present embodiment, it is preferred that the inlet pipeline 3, distribution pipeline 12, the first overflow passage 16 and the second overflow passage 17
It is formed by connecting using hard water pipe, more one progress, the inlet pipeline 3, distribution pipeline 12, the first overflow passage 16 and second
The material of overflow passage 17 is PVC or UPVC.
The length of the main standpipe 6 is without restriction, in the present embodiment, it is preferred that the length of the main standpipe 6 is
10-60cm。
The main standpipe 6 can select transparent pipe or opaque pipe, and its material can be PVC or UPVC.Preferably, it is described
Main standpipe 6 is transparent pipe, conveniently can observe and safeguard.
The latus rectum size of the motor-driven valve 5 is without restriction, in the present embodiment, it is preferred that the latus rectum of the motor-driven valve 5 and master
The internal diameter of standpipe 6 is consistent, intake draining when have aperture to greatest extent, can preferably the remaining water in pipeline and deposition under
The graininess impurity come is drained, and effectively avoids the blocking of water inlet.
The present embodiment is mainly used in the situation that water body environment is more satisfactory, water sample is without filtering, without installing filter element.
Embodiment 2
Compared with Example 1, on the basis of embodiment 1, the monitoring water quality on line pre-processes sampling system, in addition to
First filter 7, first filter 7 are arranged on outside the lower end of water quality testing meter sampling pipe 8, and the filter screen of first filter 7 is thick
Filter screen, its filter screen mesh number is without restriction, in the present embodiment, it is preferred that the filter screen mesh number of the first filter 7 is 30-
150 mesh.
The present embodiment is mainly used in that water quality is more complicated, needs the situation of by-pass filtration.
Embodiment 3
Compared with Example 1, on the basis of embodiment 1, the monitoring water quality on line pre-processes sampling system, in addition to
Second filter 10, the second filter 10 are arranged on the top of inlet pipeline 3, and the second filter 10 is by water quality testing meter sampling pipe
8 are divided into down-sampling pipe and up-sampling pipe, and the downside water inlet end of the second filter 10 is connected with down-sampling pipe, the second filter 10
Upside water side is connected with up-sampling pipe, and the water sample in down-sampling pipe is sent into the second filter 10, and the second filter 10 is to water
Sample is filtered, and the water sample after filtering is sent into up-sampling pipe, and then is sent into water quality online analyzer, the second filtering through up-sampling pipe
The filter screen of device 10 is smart filter screen, and its filter screen mesh number is without restriction, in the present embodiment, it is preferred that second filter 10
Filter screen mesh number be 80-200 mesh.
The present embodiment is mainly used in that water quality is more complicated, needs the situation of by-pass filtration.
Embodiment 4
Refer to embodiment 1-3, in the present embodiment, the monitoring water quality on line pre-processes sampling system, with the phase of embodiment 1
Than, on the basis of embodiment 1, in addition to the filter 10 of first filter 7 and second, and in first filter 7 and embodiment 2
First filter 7 it is identical, the second filter 10 is identical with the second filter 10 in embodiment 3, and the second filter 10
Filter screen mesh number is more than the filter screen mesh number of first filter 7.Water sample is tentatively filtered by first filter 7, is flowing through water quality
During detector sampling pipe 8, filtered again by the second filter 10, to obtain preferably water sample supply water to be tested
Matter in-line analyzer is tested, and can effectively protect the valve of instrument internal, and obtain more representative data.
It is very complicated, it is necessary to the situation of secondary filtration that the present embodiment is mainly used in water quality.
The monitoring water quality on line pre-processes sampling system, is adapted to a variety of different water acquisition modes at the scene：Pass through
Water pump controls water acquisition, or passes through pressure difference water acquisition from eminence without pump.
When scene is without water pump control water acquisition, the course of work of the monitoring water quality on line pretreatment sampling system is divided into
Three processes：Sample introduction process, stand process, sampling process.When scene has water pump to control water acquisition, the monitoring water quality on line is pre-
The course of work of processing sampling system is divided into Four processes：Sample introduction process, stand process, sampling process, evacuation procedure.
Sample introduction process：The water quality online analyzer being connected with the utility model sends sampling instruction and arrives motor-driven valve 5, opens
Motor-driven valve, outer water pump then being issued a command to again, starting water pump and carry out water acquisition, water sample is evacuated to inlet pipeline 3 by outer water pump, flows
Through distribution pipeline 12, motor-driven valve 5, the first overflow passage 16, the second overflow passage 17 are reached, then from the outside row of outlet pipeline 19
Walk.
Standing process：When water quality online analyzer sends the instruction for stopping sampling, instrument sends shutdown command to motor-driven valve
5, close motor-driven valve 5, now, water sample starts standing sedimentation in main standpipe 6.Meanwhile water sample persistently flows in distribution pipeline 12
1 it is possible to prevente effectively from water lines 1 and outside outlet pipeline 19 are come when current are static caused by silting up property impurity in outside in dynamic
Block.
Sampling process：After standing terminates, instrument starts internal sample pump, is sampled through water quality testing meter sampling pipe 8, water sample can
Without filtering/measured into water quality online analyzer after by-pass filtration/secondary filtration.
Evacuation procedure：After sampling terminates, water quality online analyzer sends OPEN to motor-driven valve 5, makes its opening, intakes
Remaining water and the impurity deposited are drained due to Action of Gravity Field in pipeline 3.
The monitoring water quality on line pre-processes sampling system, reasonable in design, and it is convenient that installation is laid, and simple to operate, performance can
Lean on.Its major advantage is：1) material is easy to get, easy for installation, in use, if when having damage parts can rapid-maintenance and
Change；2) vertically-mounted, water inlet also serves as delivery port, effectively lowers the blocked risk of inlet pipeline；3) distribution pipeline
Effect, makes have liquid flowing in pipeline always, can effectively avoid in the more scene lower pipeline of silting up property impurity, especially level
The blocking of pipeline；4) can be compatible without scenes such as filter, by-pass filtration, secondary filtrations.5) effect of two sections of overflow passages, protect
Card water sample pipe can be completely submerged in below water sample liquid level, to ensure that smoothly extracting water sample is tested.6) can strengthen standing
The effect of sedimentation, it can effectively reduce damage of the solid particulate matter to in-line analyzer.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (10)
1. a kind of monitoring water quality on line pre-processes sampling system, it is characterised in that is adopted including inlet pipeline (3), water quality testing meter
Sample pipe (8), distribution pipeline (12), the first overflow passage (16) and the second overflow passage (17)；The inlet pipeline (3) is pacified vertically
Dress, inlet pipeline (3) lower end is carried out water lines with outside and is connected；The inlet pipeline (3) includes main standpipe (6)；The water
Quality detection instrument sampling pipe (8) is arranged in inlet pipeline (3), and the lower end of water quality testing meter sampling pipe (8) extends to main water storage
Manage in (6), water quality testing meter sampling pipe (8) top is connected to water quality online analyzer；Distribution pipeline (12) the lower end connection
To inlet pipeline (3)；One end of first overflow passage (16) is connected with inlet pipeline (3) top, and the other end is connected to
The junction of distribution pipeline (12), the first overflow passage (16) and inlet pipeline (3) is located above main standpipe (6)；Described
Two overflow passages (17) one end is connected to the first overflow passage (16), the externally connected outlet pipeline of the other end, the second overflow pipe
The junction of road (17) and the first overflow passage (16) be located above the second articulation (14), second overflow passage (17) and
Horizontal plane is higher than horizontal plane where water quality testing meter sampling pipe (8) end where first overflow passage (16) junction.
2. monitoring water quality on line according to claim 1 pre-processes sampling system, it is characterised in that the inlet pipeline
(3) lower end is connected outside come water lines by the first articulation (2)；First overflow passage (16) and distribution pipeline (12) it
Between be connected by the second articulation (14)；Pass through the 3rd loose joint between second overflow passage (17) and outside outlet pipeline
Head (1) is connected.
3. monitoring water quality on line according to claim 1 pre-processes sampling system, it is characterised in that the distribution pipeline
(12) laterally picked out by the threeway A (4) on inlet pipeline (3)；First overflow passage (16) is by three on inlet pipeline (3)
Logical B (9) is laterally picked out；Second overflow passage (17) is laterally picked out by the threeway C (15) on the first overflow passage (16).
4. monitoring water quality on line according to claim 1 pre-processes sampling system, it is characterised in that also including motor-driven valve
(5), the motor-driven valve (5) is arranged on inlet pipeline (3) bottom, and main standpipe (6) is located above motor-driven valve (5), and isocon
Road (12) and the junction of inlet pipeline (3) are located at the lower section of motor-driven valve (5), and the motor-driven valve (5) is electrical ball valve；The electricity
The latus rectum of dynamic valve (5) is consistent with the internal diameter of main standpipe (6)；Hand-operated valve (13) is additionally provided with the distribution pipeline (12)；Institute
It is manual ball valve to state hand-operated valve (13).
5. sampling system is pre-processed according to any described monitoring water quality on line of claim 1-4, it is characterised in that the water inlet
Pipeline (3) upper end is provided with modular connection (11), and inlet pipeline (3) installs water quality testing meter sampling pipe by modular connection (11)
(8)。
6. monitoring water quality on line according to claim 5 pre-processes sampling system, it is characterised in that the inlet pipeline
(3), the material of distribution pipeline (12), the first overflow passage (16) and the second overflow passage (17) is PVC or UPVC；The main storage
The length of water pipe (6) is 10-60cm；The main standpipe (6) is transparent pipe.
7. monitoring water quality on line according to claim 1 pre-processes sampling system, it is characterised in that also including the first filtering
Device (7), first filter (7) are arranged on outside water quality testing meter sampling pipe (8) lower end.
8. monitoring water quality on line according to claim 7 pre-processes sampling system, it is characterised in that the first filter
(7) filter screen mesh number is 30-150 mesh.
9. the monitoring water quality on line pretreatment sampling system according to claim 1 or 7, it is characterised in that also including second
Filter (10), the second filter (10) is arranged on inlet pipeline (3) top, and the second filter (10) adopts water quality testing meter
Sample pipe (8) is divided into down-sampling pipe and up-sampling is managed, and water inlet end is connected with down-sampling pipe on the downside of the second filter (10), and second
Water side is connected with up-sampling pipe on the upside of filter (10).
10. monitoring water quality on line according to claim 9 pre-processes sampling system, it is characterised in that second filtering
The filter screen mesh number of device (10) is 80-200 mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721201913.5U CN207163757U (en) | 2017-09-19 | 2017-09-19 | A kind of monitoring water quality on line pre-processes sampling system |
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| CN201721201913.5U CN207163757U (en) | 2017-09-19 | 2017-09-19 | A kind of monitoring water quality on line pre-processes sampling system |
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| CN207163757U true CN207163757U (en) | 2018-03-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356457A (en) * | 2017-09-19 | 2017-11-17 | 深圳市正奇环境科技有限公司 | A kind of monitoring water quality on line pre-processes sampling system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107356457A (en) * | 2017-09-19 | 2017-11-17 | 深圳市正奇环境科技有限公司 | A kind of monitoring water quality on line pre-processes sampling system |
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Granted publication date: 20180330 Termination date: 20190919 |