CN107219162A - The method for detecting filter strainability - Google Patents
The method for detecting filter strainability Download PDFInfo
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- CN107219162A CN107219162A CN201710464464.1A CN201710464464A CN107219162A CN 107219162 A CN107219162 A CN 107219162A CN 201710464464 A CN201710464464 A CN 201710464464A CN 107219162 A CN107219162 A CN 107219162A
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- 238000000034 method Methods 0.000 title claims abstract description 48
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- 238000001514 detection method Methods 0.000 claims abstract description 83
- 239000013618 particulate matter Substances 0.000 claims abstract description 61
- 238000012360 testing method Methods 0.000 claims abstract description 59
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- 239000002245 particle Substances 0.000 claims description 105
- 239000007788 liquid Substances 0.000 claims description 24
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- 238000001914 filtration Methods 0.000 claims description 14
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 8
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 229920000742 Cotton Polymers 0.000 claims description 6
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 6
- 238000000108 ultra-filtration Methods 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000004408 titanium dioxide Substances 0.000 claims description 4
- 239000005995 Aluminium silicate Substances 0.000 claims description 3
- 235000012211 aluminium silicate Nutrition 0.000 claims description 3
- 235000012241 calcium silicate Nutrition 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 3
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000391 magnesium silicate Substances 0.000 claims description 3
- 235000019792 magnesium silicate Nutrition 0.000 claims description 3
- 229910052919 magnesium silicate Inorganic materials 0.000 claims description 3
- 238000001728 nano-filtration Methods 0.000 claims description 3
- 239000011368 organic material Substances 0.000 claims description 3
- 238000007781 pre-processing Methods 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 229920002994 synthetic fiber Polymers 0.000 claims description 3
- 239000012209 synthetic fiber Substances 0.000 claims description 3
- 239000004115 Sodium Silicate Substances 0.000 claims description 2
- 235000013980 iron oxide Nutrition 0.000 claims description 2
- 239000002105 nanoparticle Substances 0.000 claims description 2
- 239000000123 paper Substances 0.000 claims description 2
- 238000001223 reverse osmosis Methods 0.000 claims description 2
- 235000019795 sodium metasilicate Nutrition 0.000 claims description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 2
- 235000010215 titanium dioxide Nutrition 0.000 claims description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims 1
- 235000010216 calcium carbonate Nutrition 0.000 claims 1
- 238000002604 ultrasonography Methods 0.000 claims 1
- 238000004088 simulation Methods 0.000 abstract 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 16
- 239000012498 ultrapure water Substances 0.000 description 16
- 238000002474 experimental method Methods 0.000 description 11
- 206010010254 Concussion Diseases 0.000 description 10
- 238000013461 design Methods 0.000 description 9
- 230000008859 change Effects 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 8
- 239000002131 composite material Substances 0.000 description 7
- 238000005070 sampling Methods 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 6
- 238000011010 flushing procedure Methods 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 5
- 238000000746 purification Methods 0.000 description 4
- 238000000527 sonication Methods 0.000 description 4
- 235000020188 drinking water Nutrition 0.000 description 3
- 239000003651 drinking water Substances 0.000 description 3
- 239000012982 microporous membrane Substances 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000004520 agglutination Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N2015/084—Testing filters
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention relates to filter quality detection technique field, a kind of method for detecting filter strainability is specifically disclosed.This method at least comprises the following steps：Prepare the detection test solution of simulation water quality；Filter to be measured is pre-processed；One or more filters to be measured by pretreatment are connected in test water route, detection test solution is passed through the test water route；Each filter water inlet to be measured in test water route is taken into water water sample, while taking out water water sample in each filter delivery port to be measured；Water inlet water sample, water outlet water sample respectively to taking-up carries out homogenization；Measurement water inlet water sample, the particulate matter quantity of water outlet water sample, and Removal efficiency of particulate matter is calculated according to water inlet water sample particulate matter quantity, the particulate count amount of water outlet water sample.The inventive method has the features such as easy to operate, difficulty is low, interference is small, measurement data is few, data processing is simple, result can quantify.
Description
Technical field
The present invention relates to filter quality detection technique field, more particularly to a kind of detection side of filter strainability
Method.
Background technology
The strainability of filter is one of important indicator value of ratings filter filter capacity.Standard GB/T/T
18853-2002《Hydraulic drive filter evaluates the multipass method of filter element filtering performance》Only it is directed to hydraulic oil filter
And formulate, a kind of multipass strainability of hydraulic drive filter core under continuous pollutant injection condition is defined in the standard
Experiment, for using water, as the filter of medium, its filter medium is water, water is different with hydraulic oil physicochemical property, particulate matter
Matter is easier to settle in water, it is impossible to the strainability of water purification catridge is evaluated with GB/T 18853-2002.
By literature survey of the part about the method for evaluation filtering material strainability, Xu Hui etc. is by using microscope net
The rejection of lattice counting method 240 μm of standard particles of acquisition and the percent of pass of 160 μm of standard particles evaluate nylon blood filtration net
Strainability, but the method is only applicable to the larger particulate matter of evaluation particle diameter, the water outlet of such as municipal tap water and filter element of water purifier
Present in it is mostly be small particle material, low-powered microscope can not complete grid counting, and the use of high-power microscope excessively expends
Manpower and time, it is impossible to complete the detection of a large amount of samples, this method has limitation, and complex, inconvenient for use.
Publication No. CN203244814U utility model discloses a kind of strainability evaluation for drinking water treatment
Device, the device is converted by determining the indexs such as the rate of filtration, the loss of flood peak and the front and rear muddy angle value of filtering by volume
The speed and strainability evaluation number of filtering are obtained, the later data processing of the evaluating apparatus is excessively cumbersome.
Publication No. CN104749335A patent of invention describes a kind of water quality detection system, water quality detecting device, shifting
Dynamic terminal and water quality detection method.The system can be facilitated efficient provides total dissolved solid (TDS), hardness, again for drinking water
The real-time testing result of metal and pH, but the system is only to the total dissolved solid of drinking water, hardness, heavy metal and pH value
With testing result, quality only with water quality in itself it is relevant and can not directly to purifier filter strainability progress standard
Really detection and evaluation.
Publication No. CN106198353A patent of invention discloses a kind of purifier water quality monitoring system.The invention exists
The filter core junction of water purification unit sets filter core water electric conductivity sensor, becomes for monitoring the water quality during filter core use
Change, effect only can be just detected when situation occurs in filter core, and the strainability of freshly prepd filter core can not be examined
Survey with evaluating.
The content of the invention
For that directly the effective strainability to filter can not be detected and be commented present in above-mentioned prior art
The problems such as valency, the invention provides a kind of method for detecting filter strainability.
In order to reach foregoing invention purpose, present invention employs following technical scheme：
A kind of method for detecting filter strainability, at least comprises the following steps：
Step S01, preparation detection test solution；
Step S02, filter to be measured is pre-processed；
Step S03, the filters to be measured for pre-processing one or more processes are connected in test water route, the detection
Test solution is passed through the test water route；
Step S04, each filter water inlet to be measured in the test water route are taken into water water sample, while each to be measured
Filter delivery port takes out water water sample；
Step S05, the water inlet water sample respectively to taking-up, water outlet water sample carry out homogenization；
Step S06, the measurement water inlet water sample, the particulate matter quantity of water outlet water sample, and enter according to being obtained measurement
Particulate matter quantity, the particulate count amount of water outlet water sample of water water sample calculate Removal efficiency of particulate matter.
Relative to prior art, the method for detection filter strainability provided in an embodiment of the present invention is direct, effective
The strainability of filter is detected, directly passes through the strainability of the clearance ratings filter of particulate matter.This method
With easy to operate, difficulty is low, interference is small, data processing is simple, result can quantify and the features such as quantifying accurate；Can also basis
Need to carry out strainability test to multiple filters simultaneously, batch samples detection can be achieved, batch detection has result accurate
Really, detection efficiency is high, do not interfere with each other, human cost is low, measure operation maturity is high, test result stability is good, testing cost
The characteristics of decreasing；This method is simple and easy to apply, and controllability is strong, and compatibility is good, is suitable for promoting.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, below by using required in embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ability
For the those of ordinary skill of domain, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other attached
Figure.
Fig. 1 is the schematic flow sheet of the method for detection filter strainability provided in an embodiment of the present invention；
Fig. 2 is that the water circuit system diagram of the method for detection filter strainability provided in an embodiment of the present invention is intended to；
Fig. 3 is the detection unit structural representation of the method for detection filter strainability provided in an embodiment of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
As shown in figure 1, the embodiment of the present invention provides a kind of method for detecting filter strainability, at least including following step
Suddenly：
Step S01, preparation detection test solution；
Step S02, filter to be measured is pre-processed；
Step S03, the filters to be measured for pre-processing one or more processes are connected in test water route, the detection
Test solution is passed through the test water route；
Step S04, each filter water inlet to be measured in the test water route are taken into water water sample, while each to be measured
Filter delivery port takes out water water sample；
Step S05, the water inlet water sample respectively to taking-up, water outlet water sample carry out homogenization；
Step S06, the measurement water inlet water sample, the particulate matter quantity of water outlet water sample, and enter according to being obtained measurement
Particulate matter quantity, the particulate count amount of water outlet water sample of water water sample calculate Removal efficiency of particulate matter.
Detailed explanation is done to above-mentioned detection method below.
In step S01, when preparing detection test solution, it is desirable to particle of the particle diameter below 2 μm in the detection test solution of preparation
Thing accounts for the 10%~20% of total particle quantity, particulate matter of the particle diameter below 5 μm and accounts for the 25%~35% of total particle quantity, particle diameter
Particulate matter below 10 μm accounts for the 50%~60% of total particle quantity, and particulate matter of the particle diameter below 80 μm accounts for total particle quantity
More than 90%, particulate matter of the particle diameter below 120 μm account for more than the 98% of total particle quantity.Content, the particle diameter group of particulate matter
The water body of actual filtration device filtration, purification is closer into the detection test solution with particle diameter distribution as above, to ensure that this detection method is surveyed
Performance of the strainability of examination with filter when Shi Jishiyong has good uniformity.
Preferably, particulate matter is silica, aluminum oxide, iron oxide, titanium dioxide, calcium silicates, silicon in the detection test solution
At least one of sour sodium, magnesium silicate, kaolin.Because the particulate matter selected can not only be carried out to filter to be measured
Effective detection, and the physicochemical property of particulate matter is not susceptible to change in measurement process, is also easy to cleaning.
Preferably, the concentration of particulate matter is 1~25mg/L in the detection test solution.Reality when being used to analog filters
Border aquatic particle condition, is more beneficial for the test of filter strainability.
, can be with it is further preferred that the detection test solution can be by GB/ according to the technical merit of current particulate matter
T28957.1-2012 silica experiment scheme design, GB/T28957.2-2012 aluminum oxide experiment scheme design meet ISO12103-1 marks
One or more in accurate Arizona experiment scheme design are formed with running water mixed configuration.Above-mentioned GB/T28957.1-2012,
GB/T28957.2-2012, ISO12103-1 standard are current standard, when current standard is cancelled, still using titanium dioxide
At least one of silicon, aluminum oxide, iron oxide, titanium dioxide, calcium silicates, sodium metasilicate, magnesium silicate, kaolin prepare detection examination
Liquid.
In step S02, filter to be measured is pre-processed, mainly avoids filter to be measured unholiness, surface attachment
Fine particulates may influence testing result, by pretreatment, exclude unexpected interference.
Preferably, pretreatment can use running water or ultra-pure water.By running water or ultra-pure water to filter to be measured
Cleaning, the fine particulates that will be attached to filter surfaces to be measured are purged.
Preferably, pre-process 3~6 times, running water or ultra-pure water cleaning treatment 5min~10min, it is ensured that fully remove
The particulate matter that filter to be measured is carried, while avoiding scavenging period is long from may introducing other particulate contaminants, is excluded as far as possible
The influence of other extraneous factors.
Preferably, flow is 0.5~4.8L/min when the running water or ultra-pure water clean filter to be measured, and hydraulic pressure is
0.2~0.4MPa, test flow and hydraulic pressure are consistent with municipal tap water, to avoid cleaning process flow and hydraulic pressure from being used with conventional
When different cause filter capability to be measured to change or can not accurately detect filter to be measured during true use
Performance.
It is preferred that, the material of the filter to be measured can be cotton, paper, cloth, synthetic fibers, metal, ceramics, activated carbon,
It is one or more of compound in synthetic organic material.Change in short be exactly filter of the present invention, be by cotton, paper, cloth,
One kind or composite manufacturing in synthetic fibers, metal, ceramics, activated carbon, synthetic organic material are formed；The filter of formation can be with
It is filter bag, filter screen, filter core, miillpore filter, ultrafiltration filter membrane, nanofiltration filter membrane, reverse osmosis filter membrane, one kind in water filter or several
That plants is compound.
In step S03, test water route is as shown in Fig. 2 before test, test water route is connected according to mode as shown in Figure 2
All parts.
Specifically, cleaning unit holds running water or ultra-pure water, and detection test solution unit holds detection test solution, cleaning unit
With detection test solution unit individually connected with water pump by pipeline, water pump, constant current unit, dividing cell by pipeline according to
Secondary connection, then by one or more filter parallel connection access detection unit to be measured, you can.Connect behind test water route, first
Open step S02 cleaning process, when filter to be measured is after over cleaning, can with the detection test solution of open detection test solution unit,
Detection test solution is allowed to flow through filter to be measured according to test water route.Wherein, Fig. 3 shows specific detection unit structure.In Fig. 3, treat
Survey in filter access detection water route, taken in water inlet into water water sample, water water sample is taken out in filter water outlet to be measured, point
Homogenization is not carried out, and the detection of particulate matter is then carried out respectively, and by the sample water discharges after detection into drainage cell.
Preferably, the detection test solution when flowing through filter to be measured flow be 0.5~4.8L/min, hydraulic pressure is 0.2~
0.4MPa, test flow and hydraulic pressure are consistent with municipal tap water, are made with avoiding detection test solution from flowing through range of flow and hydraulic pressure with conventional
Used time is different to cause filter capability to be measured to change and may influence testing result, or can not accurately detect mistake to be measured
Performance of the filter during true use.
Preferably, before step S04 carries out water sample sampling, it should be ensured that detection test solution has been switched in test water route
10min~30min, the time that detection test solution flows in water route is between 10min~30min, it can be ensured that lead in the short time
The particulate matter total amount of filter to be measured is crossed close to the particulate matter total amount in the filter quota water purification amount normally used, so that
Improve the accuracy of measurement.
Preferably, when filter water inlet to be measured is taken into water water sample, the water inlet water sample of taking-up is 0.5L~1.0L, it is to avoid
Water inlet water sample sampling is too small and causes sampling error or sampling amount is larger causes water sample homogenizing time unreasonable.
Similarly, when filter delivery port to be measured takes out water water sample, the water outlet water sample of taking-up is 0.5L~1.0L, equally
Avoid water outlet water sample sampling amount is too small from causing sampling error big or sampling amount is excessive and cause water sample homogenizing time long.
In step S04, water inlet water sample, water outlet water sample to taking-up carry out homogenization respectively, mainly avoid water quality
Grain thing skewness, while avoiding occurring heavy gather.
Preferably, the water inlet water sample and water outlet water sample of taking-up are required to be placed on oscillator in homogenization, with
120~280r/min rotating speed concussion 5min~15min；
Or it is placed in the ultrasonically treated 5min~10min of normal temperature in ultrasonic water bath；
Or be first placed on oscillator, 5min~15min is shaken with 120~280r/min rotating speed, then be placed in ultrasonic water
Ultrasonically treated 5min~the 10min of normal temperature in bath.
Concussion is handled, and different water levels Particle distribution in the water inlet water sample of taking-up can be avoided uneven；And it is ultrasonically treated, can
To avoid partial particulate thing from occurring agglutination phenomenon during to be measured, ultrasonic time is unsuitable long, to avoid ultrasonic time long, leads
Water sample is caused to be heated, the particle diameter and quantity of particulate matter change.Normal temperature is ultrasonically treated, and temperature change is avoided to greatest extent and is led
Particle size and quantity is caused to change.
In step S06, above-mentioned sonicated water inlet water sample, water outlet water sample test to the 4th part~the 6th part when,
The average test result of grain thing is effective, it is ensured that the sample and sample during each sample test in TCH test channel are completely the same,
Ensure the Stability and veracity of test, and in the 1st to the 3rd part of test result, often because error is excessive and can not be accurate
Measurement.
Preferably, when carrying out the measurement of particulate matter, using liquid particle counter, laser fineness gage, nano particle size
Any of instrument.
Preferably, before being measured using liquid particle counter to water sample, to ensure body liquid particle counter
TCH test channel in without particulate matter residual, with avoid influence test result accuracy, it is necessary to using ultra-pure water to the liquid
Particle collector is rinsed repeatedly.
Preferably, washing time 3~6 times, it is ensured that the liquid particle counter is clean.
Further, the ultra-pure water of the liquid particle counter is cleaned, 0.45 μm and following micropore should be passed through
Membrane filtration, excludes interference of the particulate matter to liquid particle counter in ultra-pure water.
Preferably, X μm of selection of test shelves of the liquid particle counter is in 1~400 μ m, water sample single sample introduction
Amount is set as 60~100mL；In test shelves and in water sample single sample size, it can be ensured that each sample size all meets liquid
The sample introduction requirement of body particle collector.
By the measurement of aforesaid liquid particle collector, obtain into water water sample particulate matter quantity and water outlet water sample particulate count
Amount, and filter particulates clearance to be measured is calculated according to water inlet water sample particulate matter quantity and water outlet water sample particulate count amount, by
Grain clearance judges the strainability of filter.
Specifically, shown in the calculation formula of particle clearance such as following formula (I)：
The method for the detection filter strainability that the above embodiment of the present invention is provided, by filter water inlet and going out
The detection of the particle content of water sample at the mouth of a river and statistics, the strainability of direct ratings filter.
This method has that easy to operate, difficulty is low, interference is small, data processing is simple, result can quantify and quantified precisely etc.
Feature；Strainability test can also be carried out to multiple filters simultaneously as needed, batch samples detection, batch can be achieved
Detection has that result is accurate, detection efficiency is high, do not interfere with each other, human cost is low, determines that operation maturity is high, and test result is stable
Good, the characteristics of testing cost decreases and does not damage filter of property；This method is simple and easy to apply, and controllability is strong, and compatibility is good,
It is suitable for promoting.
Method in order to better illustrate the detection filter strainability that this clearly demarcated embodiment is provided, below by implementation
Example is further explained explanation to it.
Embodiment 1
The present embodiment provide a kind of detection filter strainability method, and in particular to the material that filter is made
For PP cotton filter cores.
This method comprises the following steps：
(1) filter (PP cotton filter cores) is used into ultrapure water 5min, flow during flushing is 3.8L/min, hydraulic pressure is
0.25MPa, while being configured to the detection that concentration is 10mg/L with the Arizona experiment scheme design A2 for meeting ISO12103-1 standards
Test solution；
In the detection test solution of preparation, particulate matter of the particle diameter below 2 μm account for the 12~15% of total particle, particle diameter 5 μm with
Under particulate matter account for the 28~32% of total particle, particulate matter of the particle diameter below 10 μm and account for the 50~55% of total particle, particle diameter exists
Less than 80 μm of particulate matter accounts for more than the 95% of total particle, particulate matter of the particle diameter below 120 μm and accounts for more than the 99% of total particle；
(2) filter is rinsed into 15min with above-mentioned detection test solution, the flow of detection test solution is 3.8L/min, and hydraulic pressure is
0.25MPa；
(3) 10min rinsed in above-mentioned detection test solution, takes into water water sample 0.8L from the water inlet of filter, while
Delivery port takes out water water sample 0.8L；
(4) water inlet water sample, water outlet water sample are placed on oscillator respectively, 200r/min concussions 10min；
(5) normal temperature in ultrasonic water bath pot will be placed in by above-mentioned water inlet water sample, the water outlet water sample of oscillator concussion processing to surpass
Sonication 10min；
(6) liquid particle counter is carried out with the ultra-pure water by 0.45 μm of filtering with microporous membrane rinsing 3 times repeatedly, choosing
Select 5 μm of shelves of liquid particle counter test, control water sample single sample size and be set as 80mL；
By above-mentioned sonicated water inlet water sample, each personal liquid particle counter test 6 rinsed of water outlet water sample
Secondary, the average value of the 4th to the test result of the 6th time is the particle concentration of diameter >=5 μm in water sample.Specific testing result
As shown in table 1.
Certain the PP cotton filter core strainability test result of table 1
According to the data of table 1, particle clearance is calculated：That is the filter (PP
Cotton filter core) it is 95.2% to the clearances of more than 5 μm particulate matters.
Embodiment 2
The present embodiment provide a kind of detection filter strainability method, and in particular to the material that filter is made
For active carbon composite filter core.
This method comprises the following steps：
(1) by ultrafiltration active carbon composite filter core ultrapure water 10min, during flushing, the flow of ultra-pure water is 3.5L/
Min, hydraulic pressure is 0.33MPa, while with GB/T28957.2-2012 aluminum oxide experiment scheme design M3 and meeting ISO12103-1 standards
Arizona experiment scheme design A2 be configured to concentration be 10mg/L detection test solution；
In the detection test solution of preparation, particulate matter of the particle diameter below 2 μm account for the 10~13% of total particle, particle diameter 5 μm with
Under particulate matter account for the 30~33% of total particle, particulate matter of the particle diameter below 10 μm and account for the 50~55% of total particle, particle diameter exists
Less than 80 μm of particulate matter accounts for more than the 95% of total particle, particulate matter of the particle diameter below 120 μm and accounts for more than the 99% of total particle；
(2) ultrafiltration active carbon composite filter core is rinsed into 20min with above-mentioned detection test solution, the flow of detection test solution is 3.5L/
Min, hydraulic pressure is 0.33MPa；
(3) 15min rinsed in above-mentioned detection test solution, takes into Shui Shui from the water inlet for crossing ultrafiltration active carbon composite filter core
Sample 1.0L, while taking out water water sample 1.0L in delivery port；
(4) water inlet water sample, water outlet water sample are placed on oscillator respectively, 200r/min concussions 15min；
(5) normal temperature in ultrasonic water bath pot will be placed in by above-mentioned water inlet water sample, the water outlet water sample of oscillator concussion processing to surpass
Sonication 10min；
(6) aforesaid liquid particle collector is rinsed 3 times with the ultra-pure water through 0.45 μm of filtering with microporous membrane, selects liquid
5 μm of shelves of particle collector test, water sample single sample size are set as 90mL；
Each personal liquid particle counter rinsed of above-mentioned sonicated water inlet water sample, water outlet water sample is tested 6 times,
The average value of the 4th to the test result of the 6th time is the particle concentration of diameter >=2 μm in water sample.Specific testing result is such as
Shown in table 2.
Certain the purifier ultrafiltration active carbon composite filter core strainability test result of table 2
According to the data of table 2, particle clearance is calculated：I.e. the purifier surpasses
It is 94.5% to the clearance of more than 5 μm particulate matters to filter active carbon composite filter core.
Embodiment 3
The present embodiment provide a kind of detection filter strainability method, and in particular to filter be water treatment
Device.
This method comprises the following steps：
(1) water quality treater is rinsed into 10min with running water, flow is 4.2L/min during flushing, and hydraulic pressure is 0.35MPa；
Simultaneously with GB/T28957.2-2012 aluminum oxide experiment scheme design M2 and the Arizona experiment scheme design for meeting ISO12103-1 standards
A2 is configured to the detection test solution that concentration is 5mg/L；
In the detection test solution of preparation, particulate matter of the particle diameter below 2 μm account for the 15~20% of total particle, particle diameter 5 μm with
Under particulate matter account for the 30~35% of total particle, particulate matter of the particle diameter below 10 μm and account for the 50~55% of total particle, particle diameter exists
Less than 80 μm of particulate matter accounts for more than the 95% of total particle, particulate matter of the particle diameter below 120 μm and accounts for more than the 98% of total particle；
(2) water quality treater is rinsed into 20min with detection test solution, during flushing, the flow of detection test solution is 4.2L/min, water
Press as 0.35MPa；
(3) 10min rinsed in above-mentioned detection test solution, takes into water water sample 0.6L, together from the water inlet of water quality treater
When take out water water sample 0.6L in delivery port；
(4) water inlet water sample, water outlet water sample are placed on oscillator respectively, 160r/min concussions 10min；
(5) normal temperature in ultrasonic water bath pot will be placed in by above-mentioned water inlet water sample, the water outlet water sample of oscillator concussion processing to surpass
Sonication 5min；
(6) liquid particle counter is carried out with the ultra-pure water by 0.45 μm of nanofiltration membrane rinsing 3 times repeatedly, selection
2 μm of shelves of liquid particle counter test, control water sample single sample size are set as 60mL；
By above-mentioned sonicated water inlet water sample, each personal liquid particle counter test 6 rinsed of water outlet water sample
Secondary, the average value of the 4th to the test result of the 6th time is the particle concentration of diameter >=2 μm in water sample.Testing result such as table 3
It is shown.
Certain the water quality treater strainability test result of table 3
According to the data of table 3, particle clearance is calculated：That is the water quality treater
Clearance to more than 2 μm particulate matters is 91.1%.
Embodiment 4
A kind of method for detection filter strainability that the present embodiment is provided, is specially to evaluate four purifiers simultaneously
Filter element filtering performance.
This method comprises the following steps：
(1) four purifier filter cores S1, S2, S3 and S4 are connected in parallel to water route TCH test channel, and respectively with ultrapure
Water is rinsed, and flow is 4.0L/min during flushing, and hydraulic pressure is 0.34MPa；Simultaneously with the aluminum oxide of GB/T28957.2~2012 experiment powder
Dirt M1, M2 and the Arizona experiment scheme design A2 compound concentrations for meeting the standard of ISO12103~1 are 5mg/L detection test solution；
In the detection test solution of preparation, particulate matter of the particle diameter below 2 μm account for the 10~15% of total particle, particle diameter 5 μm with
Under particulate matter account for the 33~35% of total particle, particulate matter of the particle diameter below 10 μm and account for the 55~60% of total particle, particle diameter exists
Less than 80 μm of particulate matter accounts for more than the 98% of total particle, particulate matter of the particle diameter below 120 μm and accounts for more than the 99% of total particle；
(2) four purifier filter cores S1, S2, S3 and S4 are rinsed into 20min with detection test solution, during flushing, detects test solution
Flow be 4.0L/min, hydraulic pressure is 0.34MPa；
(3) 10min rinsed in above-mentioned detection test solution, respectively entering from four purifier filter cores S1, S2, S3 and S4
The mouth of a river is taken into water water sample 0.8L, while the delivery port in respective purifier filter core S1, S2, S3 and S4 takes out water water sample 0.8L；
(4) water inlet water sample, water outlet water sample are placed on oscillator respectively, 200r/min concussions 15min；
(5) normal temperature in ultrasonic water bath pot will be placed in by above-mentioned water inlet water sample, the water outlet water sample of oscillator concussion processing to surpass
Sonication 10min；
(6) liquid particle counter is carried out with the ultra-pure water by 0.45 μm of filtering with microporous membrane rinsing 3 times repeatedly, choosing
Select 2 μm of shelves of liquid particle counter test, water sample single sample size and be set as 80mL；
Above-mentioned sonicated water sample is tested 6 times with the liquid particle counter rinsed, the 4th is to the 6th time
The average value of test result is the particle concentration of diameter >=2 μm in water sample.Specific testing result is as shown in table 4.
4 four purifier filter element filtering the performance test results of table
According to the data of table 4, the particle clearance of each purifier filter core is calculated respectively：Wherein,
S1：
S2：
S3：
S4：
I.e. purifier filter core S1, S2, S3 and S4 be 93.3% to the clearances of more than 2 μm particulate matters, 94.1%,
94.8% and 93.6%, so as to judge that the strainability of four purifier filter cores is S3 ＞ S2 ＞ S4 ＞ S1.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modification, equivalent substitution or improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (9)
1. a kind of method for detecting filter strainability, it is characterised in that at least comprise the following steps：
Step S01, preparation detection test solution；
Step S02, filter to be measured is pre-processed；
Step S03, the filters to be measured for pre-processing one or more processes are connected in test water route, the detection test solution
It is passed through the test water route；
Step S04, each filter water inlet to be measured in the test water route are taken into water water sample, while in each filtering to be measured
Device delivery port takes out water water sample；
Step S05, the water inlet water sample respectively to taking-up, water outlet water sample carry out homogenization；
Step S06, the measurement water inlet water sample, the particulate matter quantity of water outlet water sample, and the water inlet water obtained according to measurement
Particulate matter quantity, the particulate count amount of water outlet water sample of sample calculate Removal efficiency of particulate matter.
2. the method for filter strainability is detected as claimed in claim 1, it is characterised in that：In the detection test solution
Grain thing be silica, aluminum oxide, iron oxide, titanium dioxide, calcium carbonate, calcium silicates, sodium metasilicate, magnesium silicate, kaolin in extremely
Few one kind；The concentration of particulate matter is 1~25mg/L in the detection test solution.
3. the method for the detection filter strainability as described in any one of claim 1~2, it is characterised in that；The detection
In test solution, particulate matter of the particle diameter below 2 μm accounts for the 10%~20% of total particle quantity, particulate matter of the particle diameter below 5 μm and accounted for
Total particle quantity 25%~35%, particulate matter of the particle diameter below 10 μm account for the 50%~60% of total particle quantity, particle diameter exists
Less than 80 μm of particulate matter accounts for more than the 90% of total particle quantity, particulate matter of the particle diameter below 120 μm and accounts for total particle quantity
More than 98%.
4. the method for the detection filter strainability as described in any one of claim 1~2, it is characterised in that：It is made described
The material of filter to be measured is one kind or several in cotton, paper, cloth, synthetic fibers, metal, ceramics, activated carbon, synthetic organic material
That plants is compound；The filter to be measured is filter bag, filter screen, filter core, miillpore filter, ultrafiltration filter membrane, nanofiltration filter membrane, reverse osmosis filter
It is one or more of compound in film, water filter.
5. the method for the detection filter strainability as described in any one of claim 1~2, it is characterised in that：The homogeneous
Processing carries out concussion processing using oscillator or the water-bath of ultrasound normal temperature carries out water bath processing or combined using oscillator concussion to surpass
Sound normal temperature water bath processing.
6. the method for filter strainability is detected as claimed in claim 5, it is characterised in that：The oscillator is shaken
During processing, concussion rotating speed is 120~280r/min, and the concussion time is 5min~15min；And/or normal temperature in ultrasonic normal temperature water-bath
Ultrasonically treated 5min~10min.
7. the method for filter strainability is detected as claimed in claim 1, it is characterised in that：Take it is described water inlet water sample,
Before water outlet water sample, first the detection test solution is continued through according to 0.5~4.8L/min of flow, 0.2~0.4MPa of hydraulic pressure in water route
10~30min, takes into water water sample 0.5L~1.0L then at the water inlet of the filter to be measured, and in the filter to be measured
Delivery port takes out water water sample 0.5L~1.0L.
8. the method for filter strainability is detected as claimed in claim 1, it is characterised in that：The water inlet water sample, water outlet
The measurement of water sample is using any of liquid particle counter, laser fineness gage, nano particle size instrument.
9. the method for filter strainability is detected as claimed in claim 1, it is characterised in that：The meter of the particle clearance
Calculate formula as follows：
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