CN107854887A - A kind of Portable rotary water sample filter - Google Patents
A kind of Portable rotary water sample filter Download PDFInfo
- Publication number
- CN107854887A CN107854887A CN201711313822.5A CN201711313822A CN107854887A CN 107854887 A CN107854887 A CN 107854887A CN 201711313822 A CN201711313822 A CN 201711313822A CN 107854887 A CN107854887 A CN 107854887A
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- China
- Prior art keywords
- water sample
- rotating shaft
- storage cavity
- conical cap
- water storage
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 85
- 238000001914 filtration Methods 0.000 claims abstract description 33
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 claims abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 238000005070 sampling Methods 0.000 abstract description 3
- 210000003739 neck Anatomy 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000003828 vacuum filtration Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000012952 Resampling Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000000476 body water Anatomy 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/05—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of portable rotation water sample filtering device, including collection tube, water storage cavity, circulator, slider disc, rotating shaft and conical cap；Wherein：The bottom of water storage cavity is connected with conical cap, and conical cap is connected with collection tube, has spiral helicine rotating shaft by neck in water storage cavity, and the top of rotating shaft is connected with circulator, and the bottom of rotating shaft is connected with slider disc.The present invention controls the slider disc under the water surface to work by operating the circulator on the water surface, can control the volume of filtering water sample, operation is flexible and accurate, simple and laborsaving.Simultaneously can also field carry carry out acquisition filter water sample, have it is portable, flexible, simple to operate, cost is low the characteristics of, under the conditions of the labor intensity of monitoring personnel is not increased, improve the precision and efficiency of sampling.
Description
Technical field
The present invention relates to a kind of water sample filtering device, more particularly to a kind of Portable rotary water sample filter.
Background technology
It is come real by the collection to water sample, chemical examination and analysis at present to water body research, observation water quality and its change
Existing.But according to《Water and effluent monitoring analysis method (fourth edition)》In, the monitoring of a part of water sample index will be carried out
Filter.And what current laboratory was commonly used is vacuum filtration pump (such as HP-01 oil-free diaphragm vacuum pumps) and common push type syringe mistake
Filter (such as φ 25mm/0.45um disposable aspiration needle formula filter), neither suitable for the filtering of 20-50ml water samples.
1st, vacuum filtration pump is mainly used in the filtering of a large amount of samples, and vavuum pump is transported under the promotion of pressure dynamics
Turn, when the vacuum oil mixture to be splashed in smog and vavuum pump under pressure by pumping fluid mist resistant filter when,
Successively it is retained down and is recycled by filter by filter paper and cotton filter, vacuum oil, and smog then passes through filtering
Device is into the air in the external world.Following deficiency be present in it：
(1) filter is mainly used in the filtering of more than 100ml water samples, and the filtering to 20-50ml samples is excessive；
(2) filter volume is larger, inconvenient for operation；
(3) filter operation is complicated, inefficient, and when filtering sample number is more, filtering every time all needs discharge mechanism clear
Wash instrument, it is not only cumbersome, speed is slow, and workload is added, while be also possible to increase sample pollution in the process
Risk；
(4) filter needs vavuum pump to be filtered, and consumes the energy, produces noise, and cost is high；
(5) filter in the wild resampling filter when, water sample need to be transferred to filter from sampling bottle, add and operated
Journey, and field carries inconvenience.
2nd, common push type syringe filter is mainly used in the filtering of low-volume samples, extremely low to sample adsorption, ensures
The yield of maximum sample.But there is also following deficiency：
(1) filter is mainly used in the filtering of below 10ml water samples, is unsuitable for the filtering of 20-50ml water samples；
(2) the interchangeable syringe miillpore filter cracky of the filter, it is inefficient；
(3) the interchangeable syringe miillpore filter contact area of the filter is small, easily blocks, and pressing is laborious, and the rate of filtration is slow.
The content of the invention
It is real it is an object of the invention to overcome the deficiencies of the prior art and provide a kind of Portable rotary water sample filter
Existing simple and convenient laborsaving operation, accurately filters water sample.
The present invention is achieved by the following technical solutions, and the present invention includes collection tube, water storage cavity, conical cap, rotating shaft, rotation
Turn device and slider disc；Wherein：The bottom of water storage cavity is connected with conical cap by screw thread, and the bottom of conical cap is connected with collection tube,
Has spiral helicine rotating shaft in water storage cavity, the top of rotating shaft is connected with rotary turnplate, and bottom and the slider disc of rotating shaft are fixedly linked.
Rotating shaft is provided with by neck in the water storage cavity, bottom and the slider disc of rotating shaft are fixedly linked, the top of rotating shaft with
Circulator is fixedly linked.
The water storage cavity and slider disc are made up of polyethylene, acid-alkali-corrosive-resisting, and can enter by the store method of water sample
Row cleaning, will not pollution water sample when filtering.
The rotating shaft and circulator are made up of carbon constructional quality steel, have preferable intensity and toughness, at the same have compared with
Big bearing capacity.
Rotating shaft is provided with by neck in the water storage cavity, bottom and the slider disc of rotating shaft are fixedly linked, the top of rotating shaft with
Circulator is fixedly linked.By that to one side rotating shaft, the air in water storage cavity can be discharged, be at vacuum state, to another
While rotation, can acquisition filter water sample.
The water storage cavity carries scale, is more convenient for accurately filtering water sample, improves efficiency, and the rotation section for passing through circulator
A large amount of manpowers are saved.
The water storage cavity bottom connects with conical cap, and conical cap top is provided with qualitative filter paper and miillpore filter, each serves as
The second layer filters the effect of water sample and third layer filtering water sample.Qualitative filter paper plays master as rougher pre-filtering, miillpore filter
Act on, the filtering as precision.
The bottom of conical cap connects with collection tube, and the body of collection tube is provided with inlet opening, and inlet opening is provided with screen pack,
Screen pack filters as first layer, has larger impurity in anti-water-stop body, causes inlet opening to be blocked.
The diameter of the collection tube and the ratio of length are 1：1.5~1:10, the diameter of collection tube is smaller, can effectively prevent
Sealing sample flows backwards.When being filtered for laboratory water sample, the large percentage of diameter and length；When filtering water sample for field acquisition,
Diameter is smaller with length ratio, can suitably be adjusted.
The present invention has advantages below compared with prior art, and the present invention can be used for the water sample for filtering 20-50ml, have and save
The characteristics of power, cost is low, simple to operate, efficiency high, and accuracy is good；Field acquisition filtering water sample operation is can be used for simultaneously,
A small amount of shallower water body water sample can once be collected, it is not necessary to sample secondary transferring, have portable, flexible, simple to operate
The characteristics of, under the conditions of the labor intensity of monitoring personnel is not increased, improve the precision and efficiency of sampling.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
In figure：1- collection tubes (D=2cm, L=3cm)；Water storage cavity (D=4cm, L=15cm) with a scale 2-；3- rotates
Device (D=6cm)；4- slider discs (D=4cm)；5- rotating shafts (pitch r=1cm)；6- conical caps (D=4cm, L=3cm)；7- is filtered
Net；8- qualitative filter papers；9- miillpore filters；10- support bars (a=45 °)；11- inlet openings (L=2cm)；12- necks.
Embodiment
Embodiments of the invention are elaborated below, the present embodiment is carried out lower premised on technical solution of the present invention
Implement, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following implementation
Example.
As shown in figure 1, the present embodiment includes collection tube 1, water storage cavity 2, circulator 3, slider disc 4, rotating shaft 5 and conical cap 6；
Wherein：The bottom of water storage cavity 2 is connected with conical cap 6, and conical cap 6 is set in support bar 10, the bottom of conical cap 6 and collection tube
1 connection, is provided with rotating shaft 5 in water storage cavity 2 by neck 12, and bottom and the slider disc 4 of rotating shaft 5 are fixedly linked, the top of rotating shaft 5 and
Circulator 3 is fixedly linked, and a large amount of manpowers are saved by the rotation of circulator 3.
In the present embodiment, support bar 10 is two, respectively positioned at the both sides of conical cap 6.
The water storage cavity 2 of the present embodiment is provided with scale, is easy to the water sample of volume needed for being filled into.The bottom of water storage cavity 2 with
Conical cap 6 is flexibly connected by screw thread, is flexibly connected easy to disassemble.Qualitative filter paper 8 and miillpore filter 9 are provided with conical cap 6, it is fixed
Property filter paper 8 as rougher pre-filtering, miillpore filter 9 is as accurate filtering.The bottom of conical cap 6 connects with collection tube 1, adopts
The body of collector 1 is provided with inlet opening 11, and inlet opening 11 is provided with screen pack 7, for intercepting larger impurity, prevent from blocking into
Water hole.
The ratio of the diameter of collection tube 1 and length is 1 in the present embodiment：3, in other embodiment, it can set as needed
It is calculated as thinner diameter.When such as carrying out field acquisition filtering water sample, thinner diameter effectively can prevent water sample from flowing backwards.
The present embodiment course of work is as follows：
1st, bottom and the conical cap 6 of water storage cavity 2 are connected, first layer puts qualitative filter paper 8 in conical cap 6, and the second layer is put into
Miillpore filter 9.
2nd, slider disc 4 is driven to rise using the circulator 3 being connected with rotating shaft, to the left rotation, water sample passes through the He of filter screen 7 immediately
Inlet opening 11 enters in conical cap 10, is then entered by qualitative filter paper 8 and miillpore filter 9 in water storage cavity 2, while according to water storage
Chamber figure reads water depth, obtain needed for filtering volume of water sample, rotating cone lid 10, discharge the water sample of filtering to Sheng
Put in bottle, so far, filtering terminates.
Calculating section：
When be laminar flow；
υ-kinematic viscosity, at 20 DEG C, υ=1.007 × 10-6m2/s；
D- drum diameters, take d=0.04m；
V- flow rate of water flow, m/s；
Re- Reynolds numbers；
Calculated by constant speed：Current processing head loss formula is as follows：
For pipe, its hydraulic radius
(1) collection tube and support rod water diversing head, which lose, is：
Frictional head loss：
Filter screen local head loss：
ξ1- local loosening, plumbing handbook is looked into, takes ξ1=0.3；
P1=ρ gh=ρ ghj1=103×9.8×3.83×10-5=0.37534Pa
F1=P1S1=P1×πd1L=0.37534 × π × 0.02 × 0.02=4.71 × 10-4N
S1- filter screen and the contact area of inlet opening, m2/s；
L- water inlet hole lengths, 0.02m；
(2) the cylindrical portions loss of flood peak is：
Frictional head loss：
Qualitative filter paper local head loss is (looking into water engineering)：
The kinematic viscosity of υ-water, cm2/s；
G- acceleration of gravity, 9.81N=981cm2/s；
m0- filtrate porosity, value 0.38；
d0- and filtrate volume identical sphere diameter, cm, take 0.08cm；
l0- thickness of filter bed, cm, takes 0.1cm；
V- filtering velocitys, cm/s；
- filtering material particle roundness factor, takes 1.0；
P2=ρ gh=ρ ghj2=103×9.8×1.01×10-2=99.081Pa
Miillpore filter resistance：Look into water engineering：Micro porous filtration operating pressure is：0.1-0.2MPa,
(3) total force is straight up：
F=τ1+τ2+F2+F3=4.03 × 10-2+4.03×10-2+ 0.124+125.6=125.805N
Balanced according to the outer moment of couple：
M1=M2
Fr1=Tr2
r1- pitch, takes 1cm；
r2- circulator radius, takes 3cm；
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Claims (8)
- A kind of 1. Portable rotary water sample filter, it is characterised in that including collection tube (1), water storage cavity (2), circulator (3), Slider disc (4), rotating shaft (5) and conical cap (6)；Wherein：The bottom of water storage cavity (2) is connected with conical cap (6), conical cap (6) with Collection tube (1) is connected, and water storage cavity (2) is inner to have spiral helicine rotating shaft (5), the top of rotating shaft (5) and rotation by neck (12) Device (3) is connected, and the bottom of rotating shaft (5) is connected with slider disc (4).
- A kind of 2. Portable rotary water sample filter according to claim 1, it is characterised in that：The water storage cavity (2) is inner Rotating shaft (5) is fixed with by neck (12), the bottom of rotating shaft (5) is connected with slider disc (4) by screw thread, the top of rotating shaft (5) It is fixedly linked with circulator (3).
- A kind of 3. Portable rotary water sample filter according to claim 1, it is characterised in that：The water storage cavity (2) sets There is scale.
- A kind of 4. Portable rotary water sample filter according to claim 1, it is characterised in that：The water storage cavity (2) is Salable cavity.
- A kind of 5. Portable rotary water sample filter according to claim 1, it is characterised in that：The water storage cavity (2) Bottom is provided with conical cap (6), and conical cap (6) connects with collection tube (1).
- A kind of 6. Portable rotary water sample filter according to claim 1, it is characterised in that：The water storage cavity (2) Bottom connects with conical cap (6), has been arranged support bar (10) outside conical cap (6), conical cap (6) is inner to be provided with qualitative filter paper (8) With miillpore filter (9).
- A kind of 7. Portable rotary water sample filter according to claim 1, it is characterised in that：The collection tube (1) Inlet opening (11) is provided with screen pack (7).
- A kind of 8. Portable rotary water sample filter according to claim 1, it is characterised in that：It is directed to laboratory A small amount of water sample of 20-50ml water sample filtering and field acquisition filtering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711313822.5A CN107854887A (en) | 2017-12-12 | 2017-12-12 | A kind of Portable rotary water sample filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711313822.5A CN107854887A (en) | 2017-12-12 | 2017-12-12 | A kind of Portable rotary water sample filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107854887A true CN107854887A (en) | 2018-03-30 |
Family
ID=61705846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711313822.5A Withdrawn CN107854887A (en) | 2017-12-12 | 2017-12-12 | A kind of Portable rotary water sample filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107854887A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108579165A (en) * | 2018-05-08 | 2018-09-28 | 安徽理工大学 | A kind of portable power-assisted miillpore filter water sample filter |
| CN110542587A (en) * | 2019-09-16 | 2019-12-06 | 浙江海洋大学 | categorised collection system of water micro-plastic |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519752A (en) * | 2011-11-03 | 2012-06-27 | 上海交通大学 | Device for sampling lake-bottom incense ash soil and suspended matters |
| CN205449568U (en) * | 2015-12-31 | 2016-08-10 | 天津力合天成科技有限公司 | Water sample collector |
-
2017
- 2017-12-12 CN CN201711313822.5A patent/CN107854887A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519752A (en) * | 2011-11-03 | 2012-06-27 | 上海交通大学 | Device for sampling lake-bottom incense ash soil and suspended matters |
| CN205449568U (en) * | 2015-12-31 | 2016-08-10 | 天津力合天成科技有限公司 | Water sample collector |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108579165A (en) * | 2018-05-08 | 2018-09-28 | 安徽理工大学 | A kind of portable power-assisted miillpore filter water sample filter |
| CN110542587A (en) * | 2019-09-16 | 2019-12-06 | 浙江海洋大学 | categorised collection system of water micro-plastic |
| CN110542587B (en) * | 2019-09-16 | 2022-02-01 | 浙江海洋大学 | Categorised collection system of water micro-plastic |
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Application publication date: 20180330 |
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