CN112903369A - Online wet settlement collection long-distance collection and sample separation system - Google Patents
Online wet settlement collection long-distance collection and sample separation system Download PDFInfo
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- CN112903369A CN112903369A CN202110056630.0A CN202110056630A CN112903369A CN 112903369 A CN112903369 A CN 112903369A CN 202110056630 A CN202110056630 A CN 202110056630A CN 112903369 A CN112903369 A CN 112903369A
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- 238000000926 separation method Methods 0.000 title claims abstract description 6
- 238000005070 sampling Methods 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 238000004062 sedimentation Methods 0.000 claims abstract description 19
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 14
- 239000002699 waste material Substances 0.000 claims abstract description 12
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 8
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 238000004140 cleaning Methods 0.000 claims description 16
- 239000008399 tap water Substances 0.000 claims description 9
- 235000020679 tap water Nutrition 0.000 claims description 9
- 238000001556 precipitation Methods 0.000 claims description 6
- 229910021642 ultra pure water Inorganic materials 0.000 claims description 6
- 239000012498 ultrapure water Substances 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 abstract description 4
- 230000006870 function Effects 0.000 abstract description 3
- 238000000746 purification Methods 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000741 silica gel Substances 0.000 description 4
- 229910002027 silica gel Inorganic materials 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000012815 thermoplastic material Substances 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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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
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
-
- 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)
- Physics & Mathematics (AREA)
- 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 relates to an online wet sedimentation acquisition remote acquisition sample separation system which comprises a wet sedimentation sampler arranged outdoors and a sample separator arranged indoors, wherein a sampler cover is arranged at the upper end of the wet sedimentation sampler, a rain sensor is arranged at the upper end of the sampler cover, a sampling pipeline is connected between the wet sedimentation sampler and the sample separator, the sampling pipeline is made of polytetrafluoroethylene tubes, an electric ball valve is further arranged on the sampling pipeline, an overflow port is arranged at the upper end of the sample separator, an overflow valve is arranged on the overflow port, the lower end of the sample separator is externally connected with a waste liquid collection end, a peristaltic pump is arranged between the sample separator and the waste liquid collection end, and a liquid level sensor is arranged in the sample separator. The wet settlement sampler is cleaned by ultrasonic waves, the sample splitter is used for high-degree sample splitting, at least one part of functions can be performed when the total amount of samples is not enough to support the analysis of used parameters, and the components of long-distance samples are not changed by the PTFE pipeline sampling pipe.
Description
Technical Field
The invention relates to the technical field of detection equipment, in particular to an online wet settlement collecting and remote sample collecting and separating system.
Background
The wet settlement sampler is installed on the roof and the analytical instrument is installed indoors. Wet sediment (precipitation) in sample delivery lines up to 4-10 meters was a low concentration sample (measured near pure water) and was measured at a minimum of 35.325mL as required by automatic rainfall monitor specifications and test methods (HJ/T175-. The wet sedimentation sample collection belongs to the long-distance transportation of low-concentration trace samples, and the properties of the samples are kept unchanged. The collected samples are supplied to various instruments for analysis or sample storage according to a certain volume proportion. One parameter may not be allowed to be analyzed out of the collected sample, resulting in other parameters being unable to be analyzed.
The wet settlement sampler and the sample splitter adopt silica gel tubes to convey samples, the silica gel tubes generally adopt larger tube diameters for reducing resistance due to large resistance to water flow, the inner diameters of the silica gel tubes are more than 10mm, the samples can be accurately conveyed when the total amount of the samples reaches more than 100mL, and the technical requirements and the inspection method of the automatic rainfall monitor (HJ/T175-.
The silica gel material has large adsorption to the components of the sample, the memory effect of the pipeline is serious, and the next measurement is interfered by the last residue.
The sample divider is made of glass, the glass is a thermoplastic material, a heating and cooling process is adopted in the manufacturing process, and the influence of thermal shrinkage on the size of the sample divider is uncontrollable, so that the product performance consistency is poor, the rejection rate is high, and the cost is high.
The volume of the sample divider is limited, and the volume part is exceeded, so that only overflow is realized, and the collected part is a component which cannot represent all water samples.
The sampler can not be automatically cleaned, and can only be manually cleaned before raining every time, so that the labor cost is increased.
Disclosure of Invention
The invention aims to provide an online wet sedimentation collection remote collection and sample separation system to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides an online wet settlement gathers long distance and gathers branch appearance system, is including installing at outdoor wet settlement sample thief and installing at indoor riffle sampler, the upper end of wet settlement sample thief is equipped with the sampler lid, sampler lid upper end is equipped with feels rain ware, and after feeling the precipitation, the sampler lid is automatic to be opened, gathers the rainwater, be connected with the sampling pipeline between wet settlement sample thief and the riffle sampler, the sampling pipeline is polytetrafluoroethylene tubular product, the sampling pipeline still is equipped with electric ball valve on the road, the riffle sampler upper end is equipped with the overflow mouth, be equipped with the overflow valve on the overflow mouth, the external waste liquid of lower extreme of riffle sampler collects the end, just be equipped with the peristaltic pump between riffle sampler and the waste liquid collection end, be equipped with in the riffle sampler and detect minimum measured level.
Preferably, the pressure barrel is communicated with the sample splitter, a pure water valve is arranged between the pressure barrel and the sample splitter, one end of the pressure barrel, which is far away from the sample splitter, is provided with a water purification machine, the water purification machine is externally connected with tap water, and when the pressure barrel needs to be cleaned, the water purification machine is connected with the tap water to automatically prepare UP ultrapure water and store the UP ultrapure water into the pressure barrel.
Preferably, when needs sampling, when sensing the rain ware and sensing the rainfall, open the sampler lid, close electronic ball valve, collect the rainfall by wet subsidence sample thief, the rainfall water sample is whole to be collected in wet subsidence sample thief, sample concentration is by the physical average, gather after certain time, open electronic ball valve, because the effect of gravity gets into the riffle sampler through the sampling pipeline, unnecessary liquid is discharged from the overflow mouth, when the water sample volume reaches measurable requirement, level sensor output in the riffle sampler begins measuring signal, sample by analytical instrument, the sample of bottommost is abandoned, discharge the air through peristaltic pump together with impurity.
Preferably, when cleaning is started, the pure water valve is opened, the electric ball valve is opened, the overflow valve is closed, pure water is reversely flushed into the wet settlement sampler from the sample splitter under the action of the pressure barrel, after the pure water reaches the height of the cleanable liquid level, the electric ball valve and the pure water valve are closed, the ultrasonic vibrator is opened, the wet settlement sampler is subjected to ultrasonic cleaning, after cleaning is completed, the ultrasonic vibrator is closed, the electric ball valve is opened, the overflow valve is opened, cleaning liquid is discharged through the sample splitter and the overflow valve through the sampling pipeline, after the wet settlement sampler is emptied, the overflow valve is closed, the peristaltic pump is opened, waste liquid in the sample splitter is emptied, residual liquid in the sampling pipeline is emptied, after all the cleaning is completed, the overflow valve is opened, the peristaltic.
Preferably, the pressure of the tap water is not less than 2kgf/cm2。
Preferably, the sample splitter is located directly below the wet sedimentation sampler.
Compared with the prior art, the invention has the beneficial effects that:
1. the sample divider is highly sample-dividing, and can perform at least a portion of the functions when the total sample volume is insufficient to support the parameter analysis used.
2. The PTFE pipeline sampling tube does not adsorb sample components, and PTFE is made of hydrophobic materials, so that the PTFE pipeline sampling tube has extremely low water resistance and little adsorption, and ensures that the components of a long-distance sample are unchanged.
3. The wet settlement sampler is cleaned by ultrasonic waves, the back flushing of the wet settlement sampler can be realized, the automatic cleaning can be realized, and the labor cost is reduced.
4. Precipitation is collected by the wet settlement sampler, precipitation water samples are all collected in the wet settlement sampler, the sample concentration is physically averaged, and measurement is started after certain time of collection, so that the collected data are more representative.
Drawings
FIG. 1 is a schematic structural diagram of an on-line wet sedimentation collection remote collection and sample separation system according to the present invention.
In the figure: 1. a rain sensor; 2. an ultrasonic vibrator; 3. a water purification machine; 4. a pressure barrel; 5. a peristaltic pump; 6. a sampling pipeline; 7. an electric ball valve; 8. a wet sedimentation sampler; 9. a sampler cover; 10. an overflow valve; 11. a sample splitter; 12. a liquid level sensor; 13. a pure water valve.
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, in an embodiment of the present invention, an online wet sedimentation collecting and remote sampling system includes an outdoor wet sedimentation sampler 8 and an indoor sampler 11, the sampler 11 is located right below the wet sedimentation sampler 8, a sampler cover 9 is disposed at an upper end of the wet sedimentation sampler 8, a rain sensor 1 is disposed at an upper end of the sampler cover 9, when sensing precipitation, the sampler cover is automatically opened to collect rainwater, a sampling pipe 6 is connected between the wet sedimentation sampler 8 and the sampler 11, the sampling pipe 6 is a teflon pipe, an electric ball valve 7 is further disposed on the sampling pipe 6, an overflow port is disposed at an upper end of the sampler 11, an overflow valve 10 is disposed on the overflow port, a waste liquid collecting end is externally connected to a lower end of the sampler 11, a peristaltic pump 5 is disposed between the sampler 11 and the waste liquid collecting end, a liquid level sensor 12 for detecting minimum start measurement is disposed in the sampler 11, the device is characterized by further comprising a pressure barrel 4 communicated with the sample splitter 11, a pure water valve 13 is arranged between the pressure barrel 4 and the sample splitter 11, a water purification machine 3 is arranged at one end, away from the sample splitter 11, of the pressure barrel 4, the water purification machine 3 is externally connected with tap water, when the device needs to be cleaned, after the tap water is connected, the pressure of the tap water is not less than 2kgf/cm2, and the water purification machine automatically prepares UP ultrapure water and stores the UP ultrapure water into the pressure barrel.
When needing the sampling, when sensing rain ware 1 and sensing the rainfall, open sampler lid 9, close electric ball valve 7, collect the rainfall by wet subsidence sample thief 8, the rainfall water sample is whole to be collected in wet subsidence sample thief 8, sample concentration is by the physics average, gather after certain time, open electric ball valve 7, because the action of gravity gets into riffle sampler 11 through sampling pipe 6, unnecessary liquid is discharged from the overflow mouth, when the water sample volume reaches measurable requirement, level sensor 12 output in riffle sampler 11 begins measuring signal, sample by analytical instrument, the sample of bottommost abandons usefulness, discharge the air together with impurity through peristaltic pump 5. Because the sampling pipeline 6 is made of polytetrafluoroethylene tube, the components of a long-distance sample are ensured to be unchanged, the sample divider adopts high sample dividing, and at least part of functions can be performed when the total amount of the sample is not enough to support the analysis of the used parameters.
In this embodiment, when cleaning is started, the pure water valve 13 is opened, the overflow valve 10 is closed, pure water backflushes into the wet sedimentation sampler 8 from the sample splitter 11 under the action of the pressure barrel 4, after the pure water reaches the height of a cleanable liquid level, the electric ball valve 7 and the pure water valve 13 are closed, the ultrasonic vibrator 2 is opened, the wet sedimentation sampler 8 performs ultrasonic cleaning, after cleaning is completed, the ultrasonic vibrator 2 is closed, the electric ball valve 7 is opened, the overflow valve 10 is opened, cleaning liquid is discharged through the sample splitter 11 and the overflow valve 10 through the sampling pipeline 6, after the wet sedimentation sampler 8 is emptied, the overflow valve 10 is closed, the peristaltic pump 5 is opened, waste liquid in the sample splitter 11 and residual liquid in the sampling pipeline 6 are emptied, after all the cleaning is completed, the overflow valve 10 is opened, the peristaltic pump 5 is stopped, and cleaning. And the ultrasonic vibrator 2 is adopted for automatic cleaning for many times, so that the manual operation and maintenance cost is reduced.
As can be understood, the sample divider 11 is made of non-glass materials and non-thermoplastic materials, and the size of the sample divider is not affected by thermal shrinkage, so that the product performance consistency is good.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides an online wet settlement gathers long distance and gathers branch appearance system, a serial communication port, including installing at outdoor wet settlement sample thief and installing at indoor riffle sampler, the upper end of wet settlement sample thief is equipped with the sampler lid, sampler lid upper end is equipped with feels the rain ware, and after feeling the precipitation, the sampler lid is automatic to be opened, gathers the rainwater, be connected with the sampling pipeline between wet settlement sample thief and the riffle sampler, the sampling pipeline is polytetrafluoroethylene tubular product, the sampling pipeline still is equipped with electric ball valve on the road, the riffle sampler upper end is equipped with the overflow mouth, be equipped with the overflow valve on the overflow mouth, the external waste liquid of lower extreme of riffle sampler collects the end, just be equipped with the peristaltic pump between riffle sampler and the waste liquid collection end, be equipped with in the riffle sampler and detect the level.
2. The system of claim 1, further comprising a pressure barrel connected to the sample splitter, wherein a pure water valve is disposed between the pressure barrel and the sample splitter, a water purifier is disposed at an end of the pressure barrel away from the sample splitter, the water purifier is externally connected to tap water, and when cleaning is required, the water purifier automatically prepares UP ultrapure water and stores the UP ultrapure water in the pressure barrel after the tap water is connected.
3. The system of claim 2, wherein when sampling is required, the rain sensor senses rainfall, the sampler cover is opened, the electric ball valve is closed, the rainfall is collected by the wet settlement sampler, the rainfall sample is collected in the wet settlement sampler, the sample concentration is averaged physically, after a certain period of time, the electric ball valve is opened, the rainfall enters the sample separator through the sampling pipeline due to the gravity, redundant liquid is discharged from the overflow port, when the water sample volume meets the measurable requirement, the liquid level sensor in the sample separator outputs a measuring signal, the sample is sampled by the analyzer, the bottommost sample is discarded, and the waste is discharged together with impurities through the peristaltic pump.
4. The system of claim 2, wherein when cleaning is started, the pure water valve is opened, the electric ball valve is opened, the overflow valve is closed, pure water is back-flushed into the wet settlement sampler from the sampler under the action of the pressure barrel, the electric ball valve and the pure water valve are closed after the pure water reaches the cleanable liquid level, the ultrasonic vibrator is started, the wet settlement sampler is subjected to ultrasonic cleaning, after cleaning is completed, the ultrasonic vibrator is closed, the electric ball valve is opened, the overflow valve is opened, cleaning liquid is discharged through the sampler and the overflow valve through the sampling pipeline, after the wet settlement sampler is emptied, the overflow valve is closed, the peristaltic pump is opened, waste liquid in the sampler is emptied, and liquid remained in the sampling pipeline is completely emptied, the overflow valve is opened, the peristaltic pump is stopped, and cleaning is performed for three times according to the steps.
5. The system of claim 2, wherein the tap water pressure is not less than 2kgf/cm2。
6. The on-line wet sedimentation collection remote collection and sample separation system of claim 1, wherein the sample separator is located directly below the wet sedimentation sampler.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110056630.0A CN112903369A (en) | 2021-01-15 | 2021-01-15 | Online wet settlement collection long-distance collection and sample separation system |
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| CN202110056630.0A CN112903369A (en) | 2021-01-15 | 2021-01-15 | Online wet settlement collection long-distance collection and sample separation system |
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