CN109060419A - Water sample acquisition device and method - Google Patents
Water sample acquisition device and method Download PDFInfo
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- CN109060419A CN109060419A CN201810657291.XA CN201810657291A CN109060419A CN 109060419 A CN109060419 A CN 109060419A CN 201810657291 A CN201810657291 A CN 201810657291A CN 109060419 A CN109060419 A CN 109060419A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 200
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000001914 filtration Methods 0.000 claims abstract description 52
- 238000003860 storage Methods 0.000 claims abstract description 40
- 238000004891 communication Methods 0.000 claims abstract description 12
- 238000005070 sampling Methods 0.000 claims description 20
- 239000004809 Teflon Substances 0.000 claims description 15
- 229920006362 Teflon® Polymers 0.000 claims description 15
- 230000001105 regulatory effect Effects 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000004458 analytical method Methods 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- WESWKIRSMKBCAJ-UHFFFAOYSA-N [F].[Fe] Chemical compound [F].[Fe] WESWKIRSMKBCAJ-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- 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
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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
It includes: filtration members that the present invention, which discloses a kind of water sample acquisition device and method, the water sample acquisition device, is placed in the cabinet of storage water sample, the filtration members are formed with the accommodating chamber with a communication port；Receiving flask, for storing collected water sample, the opening that the receiving flask has storage chamber and is connected to storage chamber；The water inlet end of collection tube, the collection tube is connected to the communication port, and the water outlet of the collection tube passes through storage chamber described in the open communication；Part is vacuumized, the part that vacuumizes is arranged adjacent to the water outlet of the collection tube；In on vertical direction, the end face of the water outlet of the collection tube is lower than the end face of water inlet end, and the part that vacuumizes empties air in the collection tube, so that water sample enters in receiving flask from the cabinet by collection tube.Water sample acquisition device acquisition water sample of the invention is high-efficient and the good reliability of water sample.
Description
Technical field
The present invention relates to environmental monitoring field, in particular to a kind of water sample acquisition device and the utilization water sample acquisition device
The method for carrying out water sampling.
Background technique
It acquires natural water-like sample (including: river, lake, ocean etc.), and its every physics and chemical index is carried out
Analysis is physics, chemistry, biology and the important content of Research of Environmental Sciences for natural water-like.Biochemical oxygen demand (BOD) is table
Show an overall target of the aerobic pollutions matter content such as Organic substance in water.General organic matter can be decomposed by Institute of Micro-biology,
But it needs to consume oxygen when microorganism decomposition organic matter, if the dissolved oxygen in water is not enough to supply the needs of microorganism, water body is just
In pollutional condition.
It is in the instantaneous hand sampling in waters, collected water sample is being tested currently, being directed to the water sampling of biochemical oxygen demand (BOD)
Room needs to be acquired calibration storage respectively, then analyzes its index again.Water sample because collecting laboratory has silt, rubble
Equal sundries, therefore the process commonly used approach for acquiring calibration storage has dropper sampling, this method collecting efficiency is low, and there are also bottle fillings
Easily there is silt in dress, this method, and collecting bottle cannot be filled, and for water sample vulnerable to influence, the water sample reliability collected is not high, lead
It causes that sampling is repeated several times.
Summary of the invention
It is an object of the present invention to provide a kind of water sample acquisition devices, it is intended to which the water sample for solving current biochemical oxygen demand (BOD) is adopted
Collect low efficiency and the not high problem of accuracy.
To achieve the goals above, water sample acquisition device proposed by the present invention, comprising:
Filtration members are placed in the cabinet of storage water sample, and the filtration members are formed with the accommodating chamber with a communication port；
Receiving flask, for storing collected water sample, the opening that the receiving flask has storage chamber and is connected to storage chamber；
Collection tube, the water inlet end of the collection tube are connected to the communication port, and the water outlet of the collection tube is opened by described
Mouth is connected to the storage chamber；
Part is vacuumized, the part that vacuumizes is arranged adjacent to the water outlet of the collection tube；
In on vertical direction, the end face of the water outlet of the collection tube is lower than the end face of water inlet end, described to vacuumize part row
Air in the empty collection tube, so that water sample enters in receiving flask from the cabinet by collection tube.
Preferably, the filtration members include several filter hole being connected to accommodating chamber, and the filter hole is uniformly distributed in institute
State the cavity wall of accommodating chamber.
Preferably, the filtration members further include several filter screens, and a filter screen is covered in a filter hole.
Preferably, the receiving flask includes bottle body and bottle cap, and storage chamber and the opening, institute are stated in the bottle body formation
It states bottle cap to be covered on the opening and offer jack, the water outlet of the collection tube passes through the jack and is placed in the storage chamber
It is interior.
Preferably, the receiving flask further includes the load bearing arm for being convexly equipped in the bottle body peripheral wall, the load bearing arm and close institute
The bottle body body for stating opening forms a bearing groove, is loaded with the water sample in the bearing groove, and the surface of the water sample there was not institute
State the lower edge of bottle cap.
Preferably, further include regulating valve, the regulating valve be set to the collection tube water outlet and it is described vacuumize part it
Between, for adjusting the water sample rate in the collection tube.
It preferably, further include drainage tube, the drainage tube is connected to the water outlet of the collection tube, and the drainage tube
The cavity wall of free end close to the storage chamber is arranged.
Preferably, the inner surface and the outer surface of the filtration members is coated with Teflon coating；And/or the collection tube
Inner surface is coated with Teflon coating；And/or the inner surface of the drainage tube is coated with Teflon coating；Or, the filtering
The material of part, the collection tube and the drainage tube is Teflon.
It is another object of the present invention to propose a kind of water sampling method, filled using water sampling as described above
Set, the water sampling method the following steps are included:
Filtration members are put into the cabinet sampled；
Part is vacuumized described in pressing, and the intracorporal water sample of case is made to enter the water inlet end of collection tube by filtration members；
It controls after the water sample flows through water outlet by the water inlet end of collection tube and enters in receiving flask；
The water sample apparent height in the receiving flask is observed, when water sample is full of the receiving flask, stops sampling；
It seals the receiving flask and sticks corresponding water sample label and carry out preservation processing.
Preferably, the water sample acquisition device includes regulating valve, which is characterized in that vacuumizes part described in the pressing, makes
After water sample in cabinet enters collection tube by filtration members, further comprise the steps of:
The regulating valve is adjusted, to control the flow rate in the collection tube；
It is discharged after the air in the collection tube, the water outlet of collection tube is put into the receiving flask.
In technical solution of the present invention, water sample acquisition device includes collection tube and the collection that connect with the water outlet of collection tube
Bottle, for acquiring water sample, the water inlet end of the collection tube is connected with filtration members, can be carried out to the water sample of storage using filtration members
Filter, avoiding the sundries such as silt from entering influences water sample analysis in receiving flask, improves the accuracy of water sample analysis；And in the device, adopt
The end face of the water outlet of collector is in the end face for being lower than water inlet end on vertical direction, i.e., using siphon principle, and by vacuumizing
The triggering water sample that vacuumizes of part flows to water outlet by the water inlet end of collection tube automatically, finally enters and demarcates storage in receiving flask, should
Device is simple, and acquisition is convenient and efficient, effectively improves collecting efficiency.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of one embodiment of water sample acquisition device of the present invention；
Fig. 2 is the flow chart of one embodiment of water sampling method of the present invention；
Fig. 3 is the flow chart of another embodiment of water sampling method of the present invention.
Drawing reference numeral explanation:
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should
When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and should not be understood as referring to
Show or imply its relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " are defined as a result,
Two " feature can explicitly or implicitly include at least one of the features.
In the present invention unless specifically defined or limited otherwise, term " connection ", " fixation " etc. shall be understood in a broad sense,
For example, " fixation " may be a fixed connection, it may be a detachable connection, or integral；It can be mechanical connection, be also possible to
Electrical connection；It can be directly connected, the connection inside two elements or two can also be can be indirectly connected through an intermediary
The interaction relationship of a element, unless otherwise restricted clearly.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
It in addition, the technical solution between each embodiment of the present invention can be combined with each other, but must be general with this field
Based on logical technical staff can be realized, it will be understood that when the combination of technical solution appearance is conflicting or cannot achieve this
The combination of technical solution is not present, also not the present invention claims protection scope within.
The present invention proposes a kind of water sample acquisition device 100, for the water sample in laboratory to be carried out calibration storage analysis.
Please refer to Fig. 1, the water sample acquisition device 100 of one embodiment of the invention, comprising:
Filtration members 10 are placed in the cabinet of storage water sample, and the filtration members 10 are formed with the appearance with a communication port 11
Receive chamber；
Receiving flask 30, for storing collected water sample, the receiving flask 30 have storage chamber 311 and with storage chamber 311
The opening 313 of connection；
Collection tube 50, the water inlet end 51 of the collection tube 50 are connected to the communication port 11, the water outlet of the collection tube 50
53 pass through the 313 connection storage chamber 311 of opening；
Part 70 is vacuumized, the part 70 that vacuumizes is arranged adjacent to the water outlet 53 of the collection tube 50；
In on vertical direction, the end face of the water outlet 53 of the collection tube 50 is lower than the end face of water inlet end 51, described to take out very
Empty part 70 empties the air in the collection tube 50, so that water sample enters in receiving flask 30 from cabinet by collection tube 50.
In the present embodiment, water sample acquisition device 100 includes filtration members 10, which needs to be soaked in water sample for a long time
In, so as to be filtered to the water sample of acquisition, so its material need to have the characteristics such as stability is good and corrosion-resistant, because of iron fluorine
Imperial material has preferable acid-fast alkali-proof and resists the characteristic of various organic solvents, optionally, the inner surface and appearance of filtration members 10
Face is coated with Teflon coating.Certainly, the overall material that filtration members 10 according to circumstances also can be set is Teflon.The filtering
Part 10 is placed in the water body for needing to acquire, and entirety is required to be submerged in water body, to increase operation rate, and avoids sucking
Air influences the reliability of water sample in receiving flask 30, so the density of filtration members 10 is larger, so as to be self-possessed can resist buoyancy from
And it is sunken to the bottom of box.Filtration members 10 can be it is whole there is filtering function, such as with corrosion resistant while there is filtering to make
Material；It is also possible to part-structure to be filtered at filter hole 13 with filtering function for example, opening up filter hole 13,
By filtered water sample storage in accommodating chamber, and spilt out by communication port 11.
Receiving flask 30, for storing the water sample of acquisition, the material of the receiving flask 30 is preferably glass, because glass has relatively surely
Fixed chemical property, and can choose with graduated receiving flask 30, to carry out quantitative analysis.Collection tube 50 is inverted u-shaped, tool
There are water inlet end 51 and water outlet 53, for being connected to the communication port 11 of filtration members 10 and the opening 313 of receiving flask 30, to make water sample
Storage analysis is quickly carried out in receiving flask 30 by collecting in cabinet.The inner surface of collection tube 50 is also required to carry out specially treated,
Teflon coating can be coated, or is directly prepared using Teflon material, to have preferable corrosion resistance, and is not influenced
The water quality of water sample.
Part 70 is vacuumized, for taking out the air in collection tube 50, can choose air bag or exhaust tube etc..
In technical solution of the present invention, water sample acquisition device 100 includes collection tube 50 and connects with the water outlet 53 of collection tube 50
The receiving flask 30 connect, for acquiring water sample, the water inlet end 51 of the collection tube 50 is connected with filtration members 10, can be with using filtration members 10
The water sample of storage is filtered, avoiding the sundries such as silt from entering influences water sample analysis in receiving flask 30, improve water sample analysis
Accuracy；And in the device, the end face of the water outlet 53 of collection tube 50 is in the end face for being lower than water inlet end 51 on vertical direction
Using siphon principle, and the triggering water sample that vacuumizes by vacuumizing part 70 is discharged by the flow direction of water inlet end 51 of collection tube 50 automatically
End 53 finally enters and demarcates storage in receiving flask 30, and the device is simple, and acquisition is convenient and efficient, effectively improves collecting efficiency.
Please continue to refer to Fig. 1, in one embodiment, the filtration members 10 include several filter hole being connected to accommodating chamber
13, the filter hole 13 is uniformly distributed in the cavity wall of the accommodating chamber.
In the present embodiment, the overall material of setting filtration members 10 is Teflon.The shape of filtration members 10 can be square,
Cuboid or iron hammer shape, inside open up accommodating chamber, top opens up the communication port 11 being connected to accommodating chamber.In order to make filtration members
10 have filtration, and in opening up several filter hole 13 in the cavity wall of accommodating chamber, the shapes and sizes of filter hole 13 can be according to need
It asks and is adjusted, so as to filter most of impurity, such as rubble.In preferred embodiment, several filter hole 13 are uniformly divided
Cloth is primarily referred to as side wall, for bottom wall because the bottom wall with cabinet fits, which can be improved filtration members 10 in the cavity wall of accommodating chamber
Filter capacity, while can make that water sample is gentle, entrances accommodating chamber of distribution uniform, avoid the generation of bubble, raising water sample
Reliability.
In order to further increase the filter capacity of filtration members 10, the filtration members 10 further include several filter screens, a filtering
Net is covered in a filter hole 13.
In the present embodiment, filter screen can be gauze net or wire mesh etc., and the sieve pore with certain mesh number, which can
To be arranged according to the actual situation, so as to filter more tiny impurity, such as silt etc..A kind of situation, can be by a mistake
Strainer is covered in a filter hole 13, effectively save filter screen；Strainer can certainly be coated filtration members 10, consequently facilitating peace
Dress.
Referring once again to Fig. 1, the receiving flask 30 includes bottle body 31 and bottle cap 33, and the bottle body 31 is formed with the storage
Chamber 311 and the opening 313, the bottle cap 33 are covered on the opening 313 and offer jack 331, the collection tube 50
Water outlet 53 passes through the jack 331 and is placed in the storage chamber 311.
In the embodiment, in order to make the water sample entered in receiving flask 30 not be affected by the external environment, so it is provided with bottle cap
33 bottle body 31, bottle cap 33 is covered at the opening 313 of bottle body 31, so as to effectively completely cut off water sample and outside air, so that
The good reliability of water sample.Bottle cap 33 offers jack 331, wears convenient for the water outlet 53 of collection tube 50, the size of the jack 331
Match with the outer diameter of 50 water outlet 53 of collection tube, so as to improve the sealing effect of the receiving flask 30, that improves water sample can
By property and accuracy.
To be further sealed, the receiving flask 30 further includes the load bearing arm 315 for being convexly equipped in 31 peripheral wall of bottle body, described
Load bearing arm 315 and the bottle body 31 of the close opening 313 form a bearing groove 317, are loaded with the water in the bearing groove 317
Sample, and the surface of the water sample did not had the lower edge of the bottle cap 33.
In the present embodiment, load bearing arm 315 and bottle body 31 are integrated formed structures, so that the overall structural strength of receiving flask 30
Height, and it is easy to process, it is also possible to which the bearing groove 317 for forming load bearing arm 315 with bottle body 31 is seamless, to guarantee to hold
The surface for carrying the water sample in slot 317 there was not the lower edge of bottle cap 33 always, improved the tightness of sealing.The side sealed using water sample
Method can be entered in storage chamber 311 to avoid air by the gap between bottle cap 33 and bottle body 31, to further increase water sample
Accuracy.Certainly, load bearing arm 315 and bottle body 31 are also possible to separate structure, and are connected by detachable connection method.
In order to avoid there is bubble, water sample acquisition device 100 further includes regulating valve 90, and the regulating valve 90 is set to described adopt
It the water outlet 53 of collector 50 and vacuumizes between part 70, for adjusting the water sample rate in the collection tube 50.
In the present embodiment, regulating valve 90 according to the power of adjusting can be divided into it is pneumatic, surge or electric control valve 90, when
So, it is also possible to manually adjust, simplifies structure, reduce the cost of the device.Regulating valve 90 controls the rate of water sample, can make
Water sample flowing is moderate, will not both generate bubble, can also quickly and easily carry out water sample sampling.
For the generation for further avoiding bubble, water sample acquisition device 100 further includes drainage tube 60, and the drainage tube 60 connects
Cavity wall in the water outlet 53 of the collection tube 50, and the free end of the drainage tube 60 close to the storage chamber 311 is arranged.
In the present embodiment, drainage tube 60 can be to be structure as a whole with collection tube 50, i.e., by the water outlet 53 of collection tube 50
It is extended to form to the bottom of bottle body 31, the material of drainage tube is also Teflon or inner surface coating Teflon material, to prolong
Long life.The cavity wall of the free end of drainage tube 60 close to storage chamber 311 is arranged, and can will be flowed by the free end of drainage tube 60
Water sample out guides the cavity wall of storage chamber 311 into and slides along the cavity wall of storage chamber 311, to effectively avoid the production of bubble
It is raw.Preferably, the end face of the free end of drainage tube 60 is arranged towards the side wall of storage chamber 311, i.e., drainage tube 60 is by collection tube 50
Water outlet 53 be bent to form, directly slid by the cavity wall of storage chamber 311 when which can make the aqueous sample stream to go out drainage tube 60
Get off, is further reduced bubble generation, improves the accuracy and reliability of water sample, avoid multi collect.
Referring to figure 2., it is another object of the present invention to propose a kind of water sampling method, is adopted using above-mentioned water sample
Acquisition means 100, step include:
S10: filtration members 10 are put into the water body sampled；
S20: vacuumizing part 70 described in pressing, the intracorporal water of case is made to enter the water inlet end 51 of collection tube 50 by filtration members 10；
S30: it controls after the water sample flows through water outlet 53 by the water inlet end 51 of collection tube 50 and enters in receiving flask 30；
S40: observing the water sample apparent height in the receiving flask 30, when water sample is full of the receiving flask 30, stops adopting
Sample；
S50:, which sealing the receiving flask 30, and sticks corresponding water sample label carries out preservation processing.It is used due to this method
Water sample acquisition device 100 uses whole technical solutions of above-mentioned all embodiments, therefore at least with the skill of above-described embodiment
All beneficial effects brought by art scheme, this is no longer going to repeat them.
In the present embodiment, filtration members 10 are put into the cabinet of sampling, filtration members 10 slowly need to be placed water body by this process
In, it not throw away in water body energetically, avoid water sample bottom from having silt and agitate, so that the water sample of acquisition be made to be affected.So
Afterwards squeeze described in vacuumize part 70 so that collection tube 50 in formed negative pressure, thus using siphon principle make water by filtration members 10 into
Enter in collection tube 50, and finally enter in receiving flask 30 by water sample gravity, can guarantee water sample free from admixture during being somebody's turn to do.Work as receipts
It needs to stop sampling when collecting 30 built-in full water sample of bottle, it can be prevented from circulating by a switch closing collection tube 50, or
Directly extract collection tube 50.Receiving flask 30 is finally sticked into corresponding label, is sealed, on label record acquisition time,
Point and collector etc..This method can guarantee the built-in full water sample of receiving flask 30, do not store air, thereby may be ensured that water
The accuracy of sample, and this method is easy to operate, need to only squeeze and vacuumize the triggering water sample flowing of part 70, shorten water sampling
Time, improve the collecting efficiency of water sample.
Referring to figure 3., in preferred embodiment, part 70 is vacuumized described in the pressing, makes the water in cabinet body by filtering
Part 10 enters after collection tube 50, further comprises the steps of:
S21: adjusting the regulating valve 90, to control the flow rate in the collection tube 50；
S22: being discharged after the air in the collection tube 50, and the water outlet 53 of collection tube 50 is put into the receiving flask 30
It is interior.
In the present embodiment, water sample rate is controlled by regulating valve 90, and after the air being completely exhausted out in collection tube 50 again
Water sampling is carried out, the generation of the bubble in receiving flask 30 is thus greatly reduced, guarantees the reliability of acquisition water sample.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (10)
1. a kind of water sample acquisition device, which is characterized in that the water sample acquisition device includes:
Filtration members are placed in the cabinet of storage water sample, and the filtration members are formed with the accommodating chamber with a communication port；
Receiving flask, for storing collected water sample, the opening that the receiving flask has storage chamber and is connected to storage chamber；
Collection tube, the water inlet end of the collection tube are connected to the communication port, and the water outlet of the collection tube is connected by the opening
Lead to the storage chamber；
Part is vacuumized, the part that vacuumizes is arranged adjacent to the water outlet of the collection tube；
In on vertical direction, the end face of the water outlet of the collection tube is lower than the end face of water inlet end, described to vacuumize part emptying institute
The air in collection tube is stated, so that water sample enters in receiving flask from the cabinet by collection tube.
2. water sample acquisition device as described in claim 1, which is characterized in that if the filtration members include being connected to accommodating chamber
Dry filter hole, the filter hole are uniformly distributed in the cavity wall of the accommodating chamber.
3. water sample acquisition device as claimed in claim 2, which is characterized in that the filtration members further include several filter screens, and one
Filter screen is covered in a filter hole.
4. water sample acquisition device as described in claim 1, which is characterized in that the receiving flask includes bottle body and bottle cap, described
Storage chamber and the opening are stated in bottle body formation, and the bottle cap is covered on the opening and offers jack, the collection tube
Water outlet pass through the jack be placed in the storage chamber.
5. water sample acquisition device as claimed in claim 4, which is characterized in that the receiving flask further includes being convexly equipped in the bottle body
The load bearing arm of peripheral wall, the load bearing arm and the bottle body close to the opening form a bearing groove, contain in the bearing groove
Water sample is stated, and the surface of the water sample did not had the lower edge of the bottle cap.
6. the water sample acquisition device as described in any in claim 1 to 5, which is characterized in that it further include regulating valve, the adjusting
Valve be set to the collection tube water outlet and it is described vacuumize between part, for adjusting the water sample rate in the collection tube.
7. water sample acquisition device as claimed in claim 6, which is characterized in that further include drainage tube, the drainage tube is connected to
The water outlet of the collection tube, and the cavity wall of the free end of the drainage tube close to the storage chamber is arranged.
8. water sample acquisition device as claimed in claim 7, which is characterized in that the inner surface and the outer surface of the filtration members coats
There is Teflon coating；And/or the inner surface of the collection tube is coated with Teflon coating；And/or the interior table of the drainage tube
Face is coated with Teflon coating；Or, the material of the filtration members, the collection tube and the drainage tube is Teflon.
9. a kind of water sampling method utilizes water sample acquisition device such as described in any one of claims 1-8, which is characterized in that
The following steps are included:
The filtration members are put into the cabinet sampled；
Part is vacuumized described in pressing, and the intracorporal water sample of case is made to enter the water inlet end of collection tube by filtration members；
It controls after the water sample flows through water outlet by the water inlet end of collection tube and enters in receiving flask；
The water sample apparent height in the receiving flask is observed, when water sample is full of the receiving flask, stops sampling；
It seals the receiving flask and sticks corresponding water sample label and carry out preservation processing.
10. water sampling method as claimed in claim 9, the water sample acquisition device include regulating valve, which is characterized in that institute
It states and vacuumizes part described in pressing, after so that the water sample in cabinet is entered collection tube by filtration members, further comprise the steps of:
The regulating valve is adjusted, to control the flow rate in the collection tube；
It is discharged after the air in the collection tube, the water outlet of collection tube is put into the receiving flask.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810657291.XA CN109060419A (en) | 2018-06-22 | 2018-06-22 | Water sample acquisition device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810657291.XA CN109060419A (en) | 2018-06-22 | 2018-06-22 | Water sample acquisition device and method |
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| Publication Number | Publication Date |
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| CN109060419A true CN109060419A (en) | 2018-12-21 |
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| CN201810657291.XA Pending CN109060419A (en) | 2018-06-22 | 2018-06-22 | Water sample acquisition device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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