CN103411794A - Apparatus for acquiring trace quantity of organic pollutants in large volume of seawater, and acquisition system thereof - Google Patents
Apparatus for acquiring trace quantity of organic pollutants in large volume of seawater, and acquisition system thereof Download PDFInfo
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- CN103411794A CN103411794A CN2013103031539A CN201310303153A CN103411794A CN 103411794 A CN103411794 A CN 103411794A CN 2013103031539 A CN2013103031539 A CN 2013103031539A CN 201310303153 A CN201310303153 A CN 201310303153A CN 103411794 A CN103411794 A CN 103411794A
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Abstract
The invention relates to an apparatus for acquiring a trace quantity of organic pollutants in a large volume of seawater. The apparatus integrates a filter assembly and a dissolved pollutant enriching assembly, the filter assembly comprises filter units sequentially arranged along the water flow direction, a filter member is arranged between the outlet of a front filter unit and a rear filter unit, a communicating tube is arranged between adjacent filter units, the communicating tube is provided with a stopping device, the stopping device is opened when the pressure in the front filter unit reaches a preset value, and after the filter member of the front filter unit is obstructed, the water flows to the rear filter unit through the communicating tube and finally flows into the dissolved pollutant enriching assembly, so there is no need for a professional personnel to replace the filter member in the acquisition process. The invention also relates to a system adopting the apparatus. The system realizes the automatic switching of above two apparatuses through a controller, so a non-professional personnel can complete sampling by embarking the system on a merchant ship or a fixed platform. The apparatus and the system are suitable for sampling pollutants in water.
Description
Technical field
The present invention relates to the water pollutant sampling thief, particularly organic micro-pollutant harvester and acquisition system in a kind of large volume seawater.
Background technology
The characteristic that persistence organic pollutant (Persistent Organic Pollutants, POPs) has high poison, lasting, easy bioaccumulation and long-distance migration can occur, therefore controlling and weakening this compounds has become international community's common recognition.The content that in environment, POPs generally is in trace level, especially ocean is lower.But because earth Shanghai water capacity is huge, ocean is the important bank of global POPs, a series of marine physics and biogeochemical process have long-term material impact to the sea of POPs-gas exchange and Global Biogeochemical Cycle, so it is particularly important to monitor the content of ocean POPs.
Because POPs content in ocean especially ocean is extremely low, therefore need to gather a large amount of seawater and can meet the analysis needs.Traditional sampling thief is comprised of particle filter element and organic phase enrichment means, and these two kinds of parts are separated from each other.In the particle filter element, filter screen is housed, filtering a sample need to make sample continuously by this filter screen, the impurity such as the particle in sample are easy to stop up filter screen, therefore must repeatedly change filter screen by the professional, operate comparatively loaded down with trivial details, and this operation often can only realize on the scientific investigation ship, make the collection of Oceanic Samples be subject to great limitation.
Summary of the invention
In order to overcome above-mentioned technical matters, the object of the present invention is to provide organic micro-pollutant harvester and acquisition system in a kind of large volume seawater, this harvester and system are easy to use, operate without the professional, can be equipped in merchant ship or in stationary platform.
The technical solution adopted in the present invention is:
Organic micro-pollutant harvester in a kind of large volume seawater, comprise device body, be positioned at main entrance and general export on device body, described device body comprises filter assemblies and the dissolved pollutant enrichment assembly be connected with the water delivering orifice of filter assemblies, the water inlet of described filter assemblies is communicated with main entrance, described filter assemblies comprises the unit of two-stage filtration at least set gradually along water (flow) direction, between the entrance of the outlet of prime filter element and rear class filter element, be provided with the filter part, between adjacent filter element, be provided with communicating pipe, described communicating pipe is provided with stopper, described stopper is pressed onto while reaching setting value and opens in the prime filter element, adjacent filter element was communicated with by communicating pipe, described general export is positioned on dissolved pollutant enrichment assembly.
As further improvement in the technical proposal, described stopper is pressure relieving valve.
As further improvement in the technical proposal, described every grade of filter element is the supporting pressure transducer that its internal pressure of measurement is arranged all, and described stopper is for controlling the valve opened and closed by the pressure transducer testing result.
As further improvement in the technical proposal, described every grade of filter element is all supporting an emptying pipe.
As further improvement in the technical proposal, described dissolved pollutant enrichment assembly comprises sleeve, and described sleeve inner forms flow channels, and the entrance of described flow channels connects the water delivering orifice of filter assemblies, is provided with sorbing material in described flow channels.
As further improvement in the technical proposal, the water inlet of described filter assemblies is as main entrance.
As further improvement in the technical proposal, described device body also comprises the coarseparticulate collection assembly, and the outlet of described coarseparticulate collection assembly connects the water inlet that filter assemblies is positioned at bottom, and the entrance of described coarseparticulate collection assembly is as main entrance.
As further improvement in the technical proposal, described coarseparticulate collection assembly comprises the slurry tank that is connected to the filter assemblies bottom, described slurry tank middle part is provided with eddy flow damping lodicule, and described eddy flow damping lodicule is met to inflow direction, and described slurry tank is provided with the water inlet as main entrance.
As further improvement in the technical proposal, described water inlet is positioned at the top of eddy flow damping lodicule, and described slurry tank also is provided with freeing port, and described freeing port is positioned at the below of eddy flow damping lodicule.
Organic micro-pollutant acquisition system in a kind of large volume seawater, comprise organic micro-pollutant harvester at least two large volume seawater of use, the main entrance of each harvester all is connected in parallel to pressure inductor and distribution valve by pipeline, described each pressure inductor is electrically connected on a controller, described each distribution valve is connected on an intake pump by pipeline, and described each distribution valve signal is connected on controller.
The invention has the beneficial effects as follows: the present invention is combined into one filter assemblies and dissolved pollutant enrichment assembly, and filter assemblies is by two-stage filtration cell formation at least, after the filter part of prime filter element stops up, current are by flowing to the rear class filter element communicating pipe, last current all flow in dissolved pollutant enrichment assembly, the staff can freely arrange according to the seawater amount of required collection the quantity of filter part, make in its course of work without the operation of being done the replacing of filter part by the professional, therefore this device and system lift-launch can be operated on merchant ship and stationary platform.
The accompanying drawing explanation
The present invention is further described below in conjunction with drawings and embodiments.
Fig. 1 is the structural representation of the device of first embodiment of the invention;
Fig. 2 is the enlarged diagram of A part in Fig. 1;
Fig. 3 is the top view of filter element;
Fig. 4 is the structural representation of the corresponding system of first embodiment of the invention;
Fig. 5 is the structural representation of the device of second embodiment of the invention;
Fig. 6 is the structural representation of the corresponding system of second embodiment of the invention.
Embodiment
As Fig. 1-shown in Figure 6, organic micro-pollutant harvester in a kind of large volume seawater, comprise device body, be positioned at main entrance 1 and general export 2 on device body.Device body comprises filter assemblies and the dissolved pollutant enrichment assembly be connected with the water delivering orifice of filter assemblies, and the water inlet of filter assemblies is communicated with main entrance 1.Filter assemblies comprises the unit of two-stage filtration at least set gradually along water (flow) direction, and every grade of filter element filters isolation to the particle in current.Between the entrance of the outlet of prime filter element and rear class filter element, be provided with filter part 3, in embodiment, filter part 3 comprises filter membrane.Between adjacent filter element, also be provided with communicating pipe 10, communicating pipe 10 is provided with stopper 4.The particle that current continue to flow after filtering membrane inside will stop up filter membrane gradually, make the pressure of this filter element raise, and in the prime filter element, be pressed onto stopper 4 while reaching setting value, open, adjacent filter element was communicated with by communicating pipe 10, current now without or pass through on a small quantity filter membrane, all or in a large number from communicating pipe 10 flowing to next filter element.Through the current that filter, gathered last general export 2 bleeder outsides from being connected with dissolved pollutant enrichment assembly again by the absorption of dissolved pollutant enrichment assembly.
Preferably, stopper 4 is pressure relieving valve.This pressure relieving valve was arranged on communicating pipe 10, equated owing in the pressure before communicating pipe 10 interior pressure relieving valve and prime filter element, pressing, and when reaching pressure setting, pressure relieving valve is opened.Pressure relieving valve is smaller and more exquisite, and be arranged on communicating pipe 10 and occupy little space, and simple in structure.
Another alternative as pressure relieving valve, every grade of filter element is all supporting a pressure transducer of measuring its internal pressure, stopper 4 is electrically operated valve, and the pressure transducer testing result feeds back to PLC, thus then the keying of process signal conversion control electrically operated valve.Although adopt this mode complicated, operating personnel can directly see the internal pressure of filter element at the scene, help to understand the behaviour in service of filter element.
Simultaneously, every grade of filter element is all supporting an emptying pipe 5, and the afterbody filter element also is provided with bypass outlet 16.After sampling, by emptying pipe 5, inner water is discharged.
For the convenience of safeguarding, every grade of filter element is removable structure, can consider simultaneously the sealing property between adjacent filter element from filter assemblies, splitting out, and O-ring seal 17 is installed between adjacent filter element, the seepage of anti-sealing, as shown in Figure 2.And between filter element, be by being connected to the contiguous block 18 on the filter element outer wall and the coupling bolt 19 that adjacent contiguous block 18 is connected in series being realized to location.
Dissolved pollutant enrichment assembly comprises sleeve 6, the inner flow channels that forms of sleeve 6, the entrance of flow channels connects the water delivering orifice of afterbody filter assemblies, in flow channels, is provided with sorbing material 7(such as sponge, resin, polyethylene film).Current enter into dissolved pollutant enrichment assembly after the afterbody filter element, the current that enter into this assembly see through the rear general export 2 of passing through of sorbing material 7 and discharge.
The first embodiment as shown in Figure 1 and Figure 4, device body also comprises the coarseparticulate collection assembly, and its outlet connects the water inlet that filter assemblies is positioned at bottom, and the entrance of coarseparticulate collection assembly is as the main entrance 1 of installing in the present embodiment.
The coarseparticulate collection assembly comprises the slurry tank 8 that is connected to the filter assemblies bottom.Swing arm 20 is equipped with in the central authorities of slurry tank 8 bottoms, and the eddy flow damping lodicule 9 that is positioned at slurry tank 8 middle parts is equipped with in swing arm 20 upper ends.Eddy flow damping lodicule 9 is met to inflow direction, and slurry tank 8 is provided with the water inlet as main entrance 1.During work, seawater 1 enters slurry tank 8 from main entrance, and the eddy flow damping lodicule 9 that spiral is settled reduces the vortex flow velocity of current, and at the bottom of promoting that coarseparticulate is settled down to tank, the too fast obstruction of avoiding filtering part 3, enter into filter assemblies by water pipeline after current.In the present embodiment, main entrance 1 is positioned at the top of eddy flow damping lodicule 9, and slurry tank 8 also is provided with freeing port 11, and freeing port 11 is positioned at the below of eddy flow damping lodicule 9.
Organic micro-pollutant acquisition system in large volume seawater in the present embodiment, comprise organic micro-pollutant harvester at least two large volume seawater of use, the main entrance 1 of each harvester all is connected in parallel to pressure inductor 12A, 12B and distribution valve 13A, 13B by pipeline, each pressure inductor 12A, 12B are electrically connected on a controller 14, each distribution valve 13A, 13B are connected on an intake pump 15 by pipeline, and each distribution valve 13A, 13B signal are connected on controller 14.
With the first embodiment, describe use procedure of the present invention: the present embodiment is placed on ship, can utilize existing water inlet system on ship to originate as the sampling water inlet.During enforcement, as shown in Figure 4, two cover harvesters are connected by pipeline with intake pump 15, intake pump 15(peristaltic pump) and between harvester flowmeter 21A, 21B, distribution valve 13A, 13B(solenoid valve are installed successively) and pressure inductor 12A, 12B.Harvester goes forward pre-service to be purified complete sorbing material 7(column sponge being taken to ship) and filter part 3(filter membrane) be installed on wherein.Before sampling, harvester is deposited in refrigerator always.During sampling, adjustment control 14, make that one of them solenoid valve is in folding condition, another is in closure state.Setting completed, starts the peristaltic pump power supply, sample collection while opening.
At first seawater enters slurry tank 8 via pipeline and main entrance 1 under the rotation of intake pump 15, current enter the rear vortex of slurry tank 8 and flow downward, after current run into the eddy flow damping lodicule 9 of positioned beneath, flow velocity descends to some extent, coarseparticulate obtains sedimentation to a certain extent, current are by entering the first order filter element of filter assemblies afterwards, and current enter subordinate's filter element by filter membrane, and particle is collected on filter membrane.Along with increasing of water amount, on filter membrane, the amount of particle increases gradually, pressure in filter element also increases gradually, after reaching certain setting value, pressure relieving valve in subordinate's filter element is opened automatically, and current are through enter subordinate's filter element from bypass communicating pipe 10, and now subordinate's filter element filter membrane starts the collecting granules thing, so repeat, until all current by filter assemblies enter dissolved pollutant enrichment external member.After current saw through sorbing material 7 sponges, the solubilised state organic contaminant was attracted in sponge, and current are discharged from rising pipe after seeing through sponge.
If along with the increase of particle on afterbody filter element filter membrane, pressure inductor 12A, detected pressures increase, while reaching certain value, distribution valve 13A closes, distribution valve 13B opens, and starts the second cover harvester work.If setting in the sampling time, general pressure does not reach the condition that the second cover harvester is opened automatically, manually stops the first set harvester, opens the second cover.After stopping manually or automatically the first set harvester, record sampling zero-time, meter readings, take off this harvester, the ponding of emptying filter element, slurry tank 8 and dissolved pollutant enrichment assembly.Finally the harvester marker number is put back to refrigerator storage, take back laboratory and by the professional, further processed and carry out chemical analysis.
As Fig. 5 and Fig. 6, be the second embodiment, cancelled the coarseparticulate collection assembly, wherein the water inlet of filter assemblies is as main entrance 1, filter assemblies is positioned at top, dissolved pollutant enrichment assembly is positioned at below, and main entrance 1 up, utilizes the gravity of self to make water flow.
Organic micro-pollutant acquisition system in large volume seawater in the present embodiment, comprise and use organic micro-pollutant harvester in two large volume seawater, the main entrance 1 of each harvester all is connected in parallel to pressure inductor 12A, 12B and distribution valve 13A, 13B by pipeline, each pressure inductor 12A, 12B are electrically connected on a controller 14, each distribution valve 13A, 13B are connected on an intake pump 15 by pipeline, and each distribution valve 13A, 13B signal are connected on controller 14.Thereby the pressure by pressure inductor 12A, 12B induction main entrance 1 makes controller 14 control unlatching corresponding distribution valve 13A, 13B enable corresponding harvester.
Harvester in the first embodiment and the second embodiment and acquisition system can be carried on merchant ship and be sampled, and utilize the property obtained that shipping route is wide, flight number characteristics how have increased sample, also effectively reduce simultaneously the sampling cost.
The above is the preferred embodiment of the present invention, and it does not form limiting the scope of the invention.
Claims (10)
1. organic micro-pollutant harvester in a large volume seawater, comprise device body, be positioned at main entrance (1) and general export (2) on device body, it is characterized in that: described device body comprises filter assemblies and the dissolved pollutant enrichment assembly be connected with the water delivering orifice of filter assemblies, the water inlet of described filter assemblies is communicated with main entrance (1), described filter assemblies comprises the unit of two-stage filtration at least set gradually along water (flow) direction, between the entrance of the outlet of prime filter element and rear class filter element, be provided with filter part (3), between adjacent filter element, be provided with communicating pipe (10), described communicating pipe (10) is provided with stopper (4), described stopper (4) is pressed onto while reaching setting value and opens in the prime filter element, adjacent filter element was communicated with by communicating pipe (10), described general export (2) is connected with dissolved pollutant enrichment assembly.
2. organic micro-pollutant harvester in large volume seawater according to claim 1, it is characterized in that: described stopper (4) is pressure relieving valve.
3. organic micro-pollutant harvester in large volume seawater according to claim 1, it is characterized in that: described every grade of filter element is the supporting pressure transducer that its internal pressure of measurement is arranged all, and described stopper (4) is for controlling the valve opened and closed by the pressure transducer testing result.
4. organic micro-pollutant harvester in large volume seawater according to claim 1 is characterized in that: described every grade of filter element is all supporting an emptying pipe (5).
5. organic micro-pollutant harvester in large volume seawater according to claim 1, it is characterized in that: described dissolved pollutant enrichment assembly comprises sleeve (6), the inner flow channels that forms of described sleeve (6), the entrance of described flow channels connects the water delivering orifice of filter assemblies, in described flow channels, is provided with sorbing material (7).
6. according to organic micro-pollutant harvester in the described large volume seawater of any one in claim 1 to 5, it is characterized in that: the water inlet of described filter assemblies is as main entrance (1).
7. according to organic micro-pollutant harvester in the described large volume seawater of any one in claim 1 to 5, it is characterized in that: described device body also comprises the coarseparticulate collection assembly, the outlet of described coarseparticulate collection assembly connects the water inlet that filter assemblies is positioned at bottom, and the entrance of described coarseparticulate collection assembly is as main entrance (1).
8. organic micro-pollutant harvester in large volume seawater according to claim 7, it is characterized in that: described coarseparticulate collection assembly comprises the slurry tank (8) that is connected to the filter assemblies bottom, described slurry tank (8) middle part is provided with eddy flow damping lodicule (9), described eddy flow damping lodicule (9) is met to inflow direction, and described slurry tank (8) is provided with the water inlet as main entrance (1).
9. organic micro-pollutant harvester in large volume seawater according to claim 8, it is characterized in that: described water inlet is positioned at the top of eddy flow damping lodicule (9), described slurry tank (8) also is provided with freeing port (11), and described freeing port (11) is positioned at the below of eddy flow damping lodicule (9).
10. organic micro-pollutant acquisition system in a large volume seawater, it is characterized in that: comprise that at least two rights of use are if required the described harvester of 1 to 9 any one, the main entrance of each harvester (1) all is connected in parallel to pressure inductor (12A, 12B) and distribution valve (13A, 13B) by pipeline, described each pressure inductor (12A, 12B) is electrically connected on a controller (14), it is upper that described each distribution valve (13A, 13B) is connected to an intake pump (15) by pipeline, and described each distribution valve (13A, 13B) signal is connected on controller (14).
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| CN109459275A (en) * | 2018-10-15 | 2019-03-12 | 浙江省海洋水产研究所 | A kind of petrochemical industry garden water body matter characteristic contamination collector |
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| CN104677691B (en) * | 2015-02-17 | 2017-04-12 | 大连理工大学 | Grading sectional acquisition apparatus for water body suspended solids |
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| CN105158023A (en) * | 2015-08-31 | 2015-12-16 | 大连理工大学 | Automatic control type classified filtration water body suspended matter collection device |
| CN105158023B (en) * | 2015-08-31 | 2017-08-22 | 大连理工大学 | A kind of autocontrol classified filtering water body recovery technology harvester |
| CN107843460A (en) * | 2017-12-07 | 2018-03-27 | 山东省科学院海洋仪器仪表研究所 | Micro- plastics sampling system and method in seawater |
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| CN109470304B (en) * | 2018-11-08 | 2021-04-27 | 嘉兴市爵拓科技有限公司 | Environment monitoring alarm device |
| CN109612776B (en) * | 2019-01-17 | 2019-11-12 | 周浩达 | A kind of bottom intelligence water utilities water sampler |
| CN109612776A (en) * | 2019-01-17 | 2019-04-12 | 周浩达 | A kind of bottom intelligence water utilities water sampler |
| CN110411791A (en) * | 2019-07-22 | 2019-11-05 | 武汉科技大学 | A kind of particulate collection device being enriched with performance for analyzing trace element high temperature |
| CN114047049A (en) * | 2021-11-05 | 2022-02-15 | 青岛海洋科学与技术国家实验室发展中心 | Method for separating and enriching dissolved organic matters in seawater |
| CN114047049B (en) * | 2021-11-05 | 2023-12-29 | 青岛海洋科技中心 | Seawater dissolved organic matter separation and enrichment method |
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