CN205049379U - Active sample thief of quality of water parameter time series concentration based on infiltration pump - Google Patents
Active sample thief of quality of water parameter time series concentration based on infiltration pump Download PDFInfo
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- CN205049379U CN205049379U CN201520827205.7U CN201520827205U CN205049379U CN 205049379 U CN205049379 U CN 205049379U CN 201520827205 U CN201520827205 U CN 201520827205U CN 205049379 U CN205049379 U CN 205049379U
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Abstract
The utility model relates to an active sample thief of quality of water parameter time series concentration based on infiltration pump, including sampling infiltration pump, water sample storage coil pipe, bubble interpolation device, the bubble adds the device to be connected in the position of the entry end of water sample storage coil pipe, and sampling infiltration pump is connected in the exit end of water sample storage coil pipe, when sampling, the bubble adds the device and injects the interval bubble into to water sample storage coil pipe at set intervals, and the water sample that the bubble will be saved in the coil pipe is separated according to the sampling time order. The initiative sample thief, separate the water sample through adding the bubble, keeps apart effectually, can not pollute the sample again, can obtain the sampling time of accuracy simultaneously. And can add function reagent, and the concentration of quality of water parameter changes between the sampling period in the water sample avoiding having gathered, and monitoring results is more accurate.
Description
Technical field
The utility model relates to water sampling device, more particularly, relates to a kind of active sampling thief of water quality parameter time series concentration based on osmotic pumps.
Background technology
In environment water, the concentration of water quality parameter is fast changing, and the time series concentration of water quality parameter reflects the time dependent situation of water quality parameter, is the basis of monitoring water environment and water environment pollution assessment.
Osmotic pumps, based on penetration theory, is made up of permeable membrane and the different solution (being generally saturated nacl aqueous solution and deionized water) of film both sides ionic strength.Under the effect of osmotic pressure, the water in low ionic-strength solution enters in the solution of high ionic strength through permeable membrane with certain flow rate.Owing to not having moving component, without the need to power supply supply, flow velocity is little, and osmotic pumps is well suited for needing as liquid transporting apparatus the occasion that works long hours for field.
Utilize the active sampling thief of time series concentration based on osmotic pumps, carrying out after gathering water sample analyzing mensuration is a kind of effective ways obtaining water quality parameter time series concentration.
Jannasch etc. and Gkritzalis-Papadopoulos etc. successively design the active sampling thief of the time series concentration (JannaschH.W. that two kinds take osmotic pumps as sampling power respectively, WheatC.G., PlantJ.N., etal, Continuouschemicalmonitoringwithosmoticallypumpedwatersa mplers:OsmoSamplerdesignandapplications, Limnol.Oceanogr.:Methods, 2004,2,102-113; Gkritzalis-PapadopoulosA., PalmerM.R., MowlemM.C., AdaptationofanOsmoticallyPumpedContinuousinSituWaterSamp lerforApplicationinRiverineEnvironments, Environ.Sci.Technol., 2012,46,7293-7300), the water quality parameter monitoring of seawater and river is respectively used to.
Active the sampling thief ((JannaschH.W. of the design such as Jannasch, WheatC.G., PlantJ.N., etal, Continuouschemicalmonitoringwithosmoticallypumpedwatersa mplers:OsmoSamplerdesignandapplications, Limnol.Oceanogr.:Methods, 2004, 2, 102-113) be made up of osmotic pumps and sample storage pipe, under the effect of osmotic pumps, water sample is continuously inhaled in sample storage pipe, due to not free mark, only the sampling time is roughly determined in the dependence position of water sample in storage tube.
Active sampling thief (the Gkritzalis-PapadopoulosA. of the design such as Gkritzalis-Papadopoulos, PalmerM.R., MowlemM.C., AdaptationofanOsmoticallyPumpedContinuousinSituWaterSamp lerforApplicationinRiverineEnvironments, Environ.Sci.Technol., 2012, 46, 7293-7300) be to add a battery-powered device with the former difference, in sample storage pipe, one section of colored solutions (Rhodamine6G) is injected for timing, by the sample room section of being divided into, the sampling time of a certain sample segments finally accurately can be determined according to the position of colored solutions section, but colored solutions section can toward sample segments diffusion, contaminated samples, follow-up mensuration is impacted.
Commercial osmotic pumps flow velocity used in two kinds of above-mentioned sampling thiefs is little and price is high, and need multiple osmotic pumps to improve flow velocity and be unified into a large pump, thus cost increases greatly.In addition, above-mentioned sampling thief all cannot add fixing or preserve reagent in sample, when working long hours in actual water environment, causes the water quality parameter be stored in the water sample in pipe may change in sampling period concentration.Owing to there is above-mentioned defect, the existing active sampling thief performance based on osmotic pumps is not good, poor practicability, limits its application.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, the active sampling thief of water quality parameter time series concentration based on osmotic pumps of the reagent that provides a kind of sample rate to stablize, take bubble as time mark, can add.
The technical solution of the utility model is as follows:
A kind of active sampling thief of water quality parameter time series concentration based on osmotic pumps, comprise sampling osmotic pumps, water sample storage coil pipe, bubble adding set, bubble adding set is connected to the position that water sample stores the inlet end of coil pipe, and sampling osmotic pumps is connected to the endpiece that water sample stores coil pipe; When sampling, bubble adding set stores coil pipe to water sample at set intervals and injects interval bubble, and the water sample stored in coil pipe is separated by sample time order by bubble.
As preferably, bubble adding set comprises syringe pump, timing controller, and syringe pump is connected to the position that water sample stores the inlet end of coil pipe.
As preferably, sampling osmotic pumps comprises can, is usually used in the permeable membrane of water treatment, the inner space of can is separated into distillation hydroecium and salt solution chamber by permeable membrane, and the indoor filling distilled water of distilled water, loads saturated salt solution and salt solid in salt solution chamber.In addition, be filled with anion exchange resins, Zeo-karb in distilled water indoor, to absorb the ion entered through permeable membrane in distilled water, ensure the stable of sampling osmotic pumps flow velocity.
As preferably, the inlet end that water sample stores coil pipe connects filtrator, aqueous sample stream through filter laggard enter water sample store coil pipe.
As preferably, sampling thief also comprises reagent and adds module; Reagent adds module and comprises agent penetration pump and reagent coil pipe; Agent penetration pump comprises can, permeable membrane, the inner space of can is separated into distillation hydroecium and salt solution chamber by permeable membrane, the indoor filling distilled water of distilled water and anion exchange resins, Zeo-karb, load saturated salt solution and salt solid in salt solution chamber; The functional reagent possessing known specific function is loaded in reagent coil pipe; One end of reagent coil pipe is connected to the salt solution chamber of agent penetration pump, and the other end is connected to the position that water sample stores the inlet end of coil pipe, and functional reagent enters water sample and stores coil pipe and mix with water sample.
The beneficial effects of the utility model are as follows:
Active sampling thief described in the utility model, separate water sample by adding bubble, isolation effect is good, again can not contaminated samples, can obtain the sampling time accurately simultaneously.And can functional reagent be added, avoid the concentration of water quality parameter in the water sample gathered to change in sampling period, monitoring result is more accurate.
Utilize be usually used in water treatment reverse osmosis membrane as permeable membrane to make osmotic pumps, reduce costs, improve reliability; In the distilled water of osmotic pumps, add anion and cation exchange resin, adsorb the salt entered through permeable membrane in distilled water, ensure that the osmotic pressure value of film both sides is invariable, thus make the flow velocity of osmotic pumps keep stable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model (do not arrange reagent and add module);
Fig. 2 is structural representation of the present utility model (increase arranges reagent and adds module);
Fig. 3 is structural representation of the present utility model (on the basis of the embodiment shown in Fig. 2, increases and arrange filtrator);
In figure: 11 is that water sample stores coil pipe, and 12 is sampling osmotic pumps, and 13 is filtrators, 14 is interval bubbles, and 15 is agent penetration pumps, and 16 is reagent coil pipes, 17 is cans, and 18 is permeable membranes, and 19 is distillation hydroeciums, 20 is salt solution chamber, 21 is salt solids, and 22 is negative ion and Zeo-karb, and 23 is bubble adding sets, 24 is syringe pumps, 25 timing controllers.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
The utility model is the deficiency such as the existing active sampling thief performance based on osmotic pumps is not good, poor practicability in order to solve, there is provided a kind of water quality parameter time series concentration active sampling thief, as shown in Figure 1, sampling osmotic pumps 12, water sample storage coil pipe 11, bubble adding set 23 is comprised.Bubble adding set 23 is connected to the inlet end that water sample stores coil pipe 11, and sampling osmotic pumps 12 is connected to the endpiece that water sample stores coil pipe 11; When sampling, bubble adding set 23 at set intervals to water sample store coil pipe 11 inject interval bubble 14, interval bubble 14 by water sample the water sample stored in coil pipe 11 separate by sample time order.
Water sample stores in coil pipe 11 and enough distilled water is housed, and to ensure the normal work of sampling osmotic pumps 12, can store simultaneously and enter water sample of the present utility model.
Sampling osmotic pumps 12 provides sampling power for the utility model, sampling osmotic pumps 12 comprises can 17, permeable membrane 18, the inner space of can 17 is separated into distillation hydroecium 19 and salt solution chamber 20 by permeable membrane 18, load distilled water and anion exchange resins, Zeo-karb in distillation hydroecium 19, in salt solution chamber 20, load saturated salt solution (as sodium chloride solution) and salt solid 21 (solid sodium chloride).A certain amount of solid sodium chloride is put in saturated nacl aqueous solution, ensure that duration of work sodium chloride solution keeps state of saturation always, in distilled water, add negative ion and Zeo-karb 22 simultaneously, to enter the sodium chloride in distilled water through permeable membrane 18 with absorption, ensure that the difference of permeable membrane 18 both sides solution ion strength is invariable, make the flow velocity of sampling osmotic pumps 12 keep stable.
Bubble adding set 23 comprises syringe pump 24, timing controller 25, and the outlet of syringe pump 24 is connected to the inlet end that water sample stores coil pipe 11, and timing controller 25 controls syringe pump 24 and injects interval bubble 14 to water sample storage coil pipe 11 at set intervals.Timing controller 25 can comprise timer, power supply.
The utility model also comprises reagent and adds module, as shown in Figure 2.Reagent adds module and comprises agent penetration pump 15 and reagent coil pipe 16; The structure of agent penetration pump 15 is identical with sampling osmotic pumps 12, and its flow velocity is much smaller than sampling osmotic pumps 12.Agent penetration pump 15 comprises can 17, permeable membrane 18, the inner space of can 17 is separated into distillation hydroecium 19 and salt solution chamber 20 by permeable membrane 18, load distilled water and anion exchange resins, Zeo-karb in distillation hydroecium 19, in salt solution chamber 20, load saturated salt solution (as sodium chloride solution) and salt solid 21 (solid sodium chloride).In saturated nacl aqueous solution, put into a certain amount of solid sodium chloride, ensure that duration of work sodium chloride solution keeps state of saturation always; The functional reagent possessing known specific function is loaded in reagent coil pipe 16; Can add multiple functional reagent as required, the functional reagent in reagent coil pipe 16 comprises the biocide such as mercuric chloride or formaldehyde for killing livestock, or for the acid-base solution of adjust ph, or reductant-oxidant.One end of reagent coil pipe 16 is connected to the salt solution chamber 20 of agent penetration pump 15, and the other end is connected to the position that water sample stores the inlet end of coil pipe 11, and functional reagent enters water sample and stores coil pipe 11 and mix with water sample.
When the particle in water body is more, can store the inlet end connection filtrator 13 of coil pipe 11 at water sample, as shown in Figure 3, aqueous sample stream enters water sample and stores coil pipe 11 after filter 13.Water sample enters from filtrator 13, particle can be avoided to enter water sample and store coil pipe 11.
Operational process of the present utility model is as follows:
The utility model is laid in tested water body.Under the effect of osmotic pressure, the distilled water in sampling osmotic pumps 12 with certain speed by permeable membrane 18, can enter in the saturated nacl aqueous solution of opposite side, thus is sucked in the utility model by water sample.Under the effect of sampling osmotic pumps 12, water sample, by filtrator 13 filtering particle, enters water sample and stores in coil pipe 11, originally then enters sampling osmotic pumps 12 at the water sample distilled water stored in coil pipe 11.
While sampling, the reagent that agent penetration pump 15 promotes in reagent coil pipe 16 enters the utility model, and mixes with water sample.Reagent can be biocide, kills various microorganism in stream, the impact that the activity preventing from microorganism from growing on filter membrane resulting in blockage and eliminate microorganism may cause water quality parameter concentration; Also can be fixing agent, by changing potential of hydrogen and the redox state of water sample, prevent various reaction, guaranteeing that the concentration of water quality parameter and form do not change.
While sampling, bubble adding set 23 stores in coil pipe 11 toward water sample at set intervals and adds a spacer segment bubble 14, and water sample is stored water sample in coil pipe 11 by the sample time order section of being separated into by these interval bubbles 14.
After laying end, the utility model is reclaimed, the water sample segmentation stored by water sample in coil pipe 11 by the sequencing of sampling is taken out, one section of water sample between two spacer segment bubbles 14 represents and terminate gathered water sample to the time adding second segment interval bubble 14 from adding the time of first paragraph interval bubble 14, thus achieves the accurate marker that water sample stores the water sampling time in coil pipe 11.By the water quality parameter concentration in analytical instrument each section of water sample, obtain the time series concentration of water quality parameter.
Embodiment 1
In the present embodiment, the filter membrane that aperture is 0.45 micron is housed in filtrator 13, for removing the particle in water.It is high-purity FEP or PTFE tube that water sample stores coil pipe 11.The can 17 of sampling osmotic pumps 12 adopts organic glass to process; Be usually used in the reverse osmosis membrane 18 of water treatment if Tao Shi (DOW) reverse osmosis membrane 18 is as permeable membrane 18, the size of permeable membrane 18 is determined by the factor such as flow velocity and sampling time of sampling; Negative ion and Zeo-karb 22 can adopt polishing resin as Tao Shi DOWEX
tM.The structure of agent penetration pump 15 and material used with sampling osmotic pumps 12, but volume and flow velocity less.Reagent coil pipe 16 is FEP or PTFE plastic tube, and in-built functional reagent is mercuric chloride solution.Sampling thief described in the present embodiment is laid in water, gathers chemical oxygen demand (COD) (COD), nutritive salt etc. in water.
Embodiment 2
The difference of the present embodiment and embodiment 1 is that the functional reagent in reagent coil pipe 16 is bromine chloride solution.Sampling thief described in the present embodiment is laid in water, gathers the mercury in water.
Other parts are identical with embodiment 1.
Embodiment 3
The difference of the present embodiment and embodiment 1 is that the functional reagent in reagent coil pipe 16 is nitric acid acid solution.Sampling thief described in the present embodiment is laid in water, gathers the heavy metal in water.
Other parts are identical with embodiment 1.
Embodiment 4
The difference of the present embodiment and embodiment 1 is that the functional reagent in reagent coil pipe 16 is sodium hydroxide solution.Sampling thief described in the present embodiment is laid in water, gathers the prussiate in water.
Other parts are identical with embodiment 1.
Above-described embodiment is only used to the utility model is described, and is not used as restriction of the present utility model.As long as according to technical spirit of the present utility model, change above-described embodiment, modification etc. all will be dropped in the scope of claim of the present utility model.
Claims (5)
1. the active sampling thief of water quality parameter time series concentration based on osmotic pumps based on osmotic pumps, it is characterized in that, comprise sampling osmotic pumps, water sample storage coil pipe, bubble adding set, bubble adding set is connected to the inlet end that water sample stores coil pipe, and sampling osmotic pumps is connected to the endpiece that water sample stores coil pipe; When sampling, bubble adding set stores coil pipe injected gas bubble to water sample at set intervals, bubble by water sample the water sample stored in coil pipe separate by sample time order.
2. the active sampling thief of water quality parameter time series concentration based on osmotic pumps according to claim 1, it is characterized in that, bubble adding set comprises syringe pump, timing controller machine, and syringe pump is connected to the inlet end that water sample stores coil pipe.
3. the active sampling thief of water quality parameter time series concentration based on osmotic pumps according to claim 1, it is characterized in that, sampling osmotic pumps comprises can, permeable membrane, the inner space of can is separated into distillation hydroecium and salt solution chamber by permeable membrane, the indoor filling distilled water of distilled water and anion exchange resins, Zeo-karb, load saturated salt solution and salt solid in solution chamber.
4. the active sampling thief of water quality parameter time series concentration based on osmotic pumps according to claim 1, is characterized in that, water sample store coil pipe inlet end connect filtrator, aqueous sample stream through filter laggard enter water sample store coil pipe.
5. the active sampling thief of water quality parameter time series concentration based on osmotic pumps according to any one of Claims 1-4, is characterized in that, also comprises reagent and adds module; Reagent adds module and comprises agent penetration pump and reagent coil pipe; Agent penetration pump comprises can, permeable membrane, the inner space of can is separated into distillation hydroecium and salt solution chamber by permeable membrane, the indoor filling distilled water of distilled water and anion exchange resins, Zeo-karb, load saturated salt solution and salt solid in salt solution chamber; The functional reagent possessing known specific function is loaded in reagent coil pipe; One end of reagent coil pipe is connected to the solution chamber of agent penetration pump, and the other end is connected to the inlet end that water sample stores coil pipe, and functional reagent enters water sample and stores coil pipe and mix with water sample.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769235A (en) * | 2016-11-23 | 2017-05-31 | 厦门大学 | A kind of environmental contaminants time series concentration passive type sampling apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769235A (en) * | 2016-11-23 | 2017-05-31 | 厦门大学 | A kind of environmental contaminants time series concentration passive type sampling apparatus |
| CN106769235B (en) * | 2016-11-23 | 2019-07-30 | 厦门大学 | A kind of environmental contaminants time series concentration passive type sampling apparatus |
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