CN110196217A - A kind of method for capableing of rapid evaluation filter filtrate removal gaseous contamination physical performance - Google Patents
A kind of method for capableing of rapid evaluation filter filtrate removal gaseous contamination physical performance Download PDFInfo
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Abstract
The present invention provides a kind of methods for capableing of rapid evaluation filter filtrate removal gaseous contamination physical performance, it is characterized by: step 1 is that certain density gaseous pollutant is added in test chamber, open agitation fan, stirring tests gaseous pollutant concentration using corresponding tester after ten minutes, records primary data t0；Step 2 is to open the clamping interior loop test equipment of filtering material, and fixed air quantity is arranged, every data of 2-5 minutes records, is recorded as t respectively1、t2、t3Until tn, wherein the unit of n is min；Step 3 is to calculate filter efficiency by filter efficiency formula；The test chamber is small test chamber or big test chamber, and the concentration of the gaseous pollutant is 5-15 times of room air standard.Air quality technical field indoors, there are media performances to test inadequate system, and filtrate testing cost is high, and test proposes systematization, low cost, the filtrate appraisal procedure of low pollution so that the problem of gaseous pollutant pollutes atmosphere.
Description
Technical field
The present invention relates to indoor air quality technical field more particularly to one kind can rapid evaluation filter filtrate go degasification
The method of state pollution physical performance.
Background technique
The superiority and inferiority of indoor air quality directly affects the health of human body, with the enhancing of people's environmental consciousness, air cleaning
Device is given birth to because of fortune.Air purifier mainly removes Particulate Pollution object and two kinds of gaseous pollutant.Wherein Particulate Pollution owner
It to be filtered by high efficiency filter material.And mainly to pass through active carbon, silica, aluminium oxide, zeolite etc. more for gaseous pollutant
Porous materials fiting chemical medicament, is removed by physical absorption and chemisorption.
According to " GBT 18801-2015 air purifier " related request, the pollutant removal of air purifier is judged
Mainly determined according to Clean air delivery rate.It is needed to ensure raw material property to filtering material as air filter manufacturer
Carry out dependence test.Previous test method often only makes corresponding filter screen, then uses matched air purifier, presses
It is tested according to " GBT 18801-2015 air purifier " related request.This method needs to make filter screen test, while not
For same air purifier due to performance difference, the result that different materials are tested on different air purifiers does not have comparability.
Systematically different materials can not be assessed.
It is mentioned in the test method of relevant criterion " ASTM-D-6646-2003 " measurement activated carbon adsorption hydrogen sulfide break through volume
A kind of experimental method that activated carbon adsorption gaseous contamination is determined by inter-hole testing is supplied.This method can mainly be used to determine
The performance good job of the adsorptive gaseous pollution of different materials, but with the air cleaning in " GBT 18801-2015 air purifier "
The Clean air delivery rate of device is without apparent relational.Different gaseous pollutant, which needs to configure, simultaneously different stablizes constant hair
Source of students, testing cost are also relatively high.Test time of break-through is differed in a few houres to ten a few houres, and test period is too long.
A kind of air filter service check is given in relevant criterion " GBT 14295-2008 air filter " appendix A
Method, test method needs are tested in corresponding ducting system, test air filtration under certain wind speed or air quantity
The windage of device and a filter efficiency, the test mode are that dynamic is tested, it is desirable that pollutant is stablized during the test, together
When need multiple detection devices while detecting the pollutant concentration of air filter front and back end.And for the dirt not filtered out
Object is contaminated, during the test by being constantly discharged among test environment and atmosphere after simple filtration.Foreign countries EN779 simultaneously,
The other standards such as ISO16890 test method is tested using ducting system.
For above situation, it is necessary to propose one kind can be bonded national standard " GBT 18801-2015 air purifier " and
" GBT 14295-2008 air filter " requirement, quickly tests gaseous pollutant raw material and filter screen removes gaseous pollutant
The test method of ability.
Summary of the invention
In the prior art there are the inadequate system of media performance test to overcome, filtrate testing cost is high, and test makes to bring about the desired sensation
State pollutant is constantly discharged into atmosphere, proposes a kind of side for capableing of rapid evaluation filter filtrate removal gaseous contamination physical performance
Method, it is characterised in that: step 1 is that certain density gaseous pollutant is added in test chamber, opens agitation fan, stirs 10 points
Gaseous pollutant concentration is tested using corresponding tester after clock, records primary data t0；Step 2 is to open clamping filter material
The interior loop test equipment of material, is arranged fixed air quantity, every data of 2-5 minutes records, is recorded as t respectively1、t2、t3Directly
To tn, wherein the unit of n is min；Step 3 is to calculate filter efficiency by filter efficiency formula；The test chamber is small test
Cabin or big test chamber, the concentration of the gaseous pollutant are 5-15 times of room air standard, and the filtering material is divided into filtering
Sheet type and particulate filter material.
Preferably, the pollutant initial concentration in the test chamber is C0, test chamber volume is V, and filtering material exists
Filter efficiency is that η is constant to fixed air quantity v next time, and pollutant concentration changing value is C in test chambertIt is t with the time, in test chamber
Pollutant concentration changes CtRelationship between time t is
- dct*V=η * ν * dt*ct
The above-mentioned differential equation is solved, concentration C in test chamber is obtainedtWith the relational expression of time t
In formula:
CtFor in time t in test chamber gaseous pollutant concentration, unit be PPM or mg/m3；
C0For starting when test chamber in gaseous pollutant concentration, unit be PPM or mg/m3；
η is a filter efficiency of filtering material, unit %；
V is test chamber volume, unit m3；
Loop test equipment air quantity in v, unit m3/min。
Exponential transform is done to above-mentioned formula, obtains linear equation:
According to above formula, data can be recorded to test data and do linear regression, the calculation formula of filter efficiency η are as follows:
In formula: η is filter efficiency of filtering material, unit %；
tiFor i-th of sample point corresponding time, unit min；
lnctiThe logarithm of pollutant concentration is corresponded to for i-th of sample point；
N is sampling number.
By using above-mentioned technical proposal, C is changed by the concentration in test chambertRelation formula between time t into
Row conversion, according to the initial concentration C in conversion cabin0, the relationship meter of test chamber volume V, fixed air quantity v, filter efficiency between η
Calculate filter efficiency η.
Preferably, the volume of the small test chamber, between 3-5 cubic metres, the volume of the big test chamber is in 30-
Between 100 cubic metres.
By using above-mentioned technical proposal, test chamber uses the two kinds of test chamber of adjustable size, can be applicable in not
The filtrate of same type is not needed to carry out self damping test using small test chamber, simplifies testing process, big test chamber can satisfy
The test request of biggish filtrate is able to bear biggish air quantity.
Preferably, the test air quantity of the small test chamber 20-100 cubic metres per hour between, the big test
The test air quantity in cabin at 100-1000 cubic metres per hour, and test air quantity can voluntarily adjust before testing, test air quantity surveying
It immobilizes during examination.
By using above-mentioned technical proposal, the test air quantity of size test chamber is adjustable, can need filtrate to be tested
Identical test air quantity is adjusted, guarantees that the filter screen of test has comparability.
Preferably, the area of filtering material is in 0.01- in the case that the dosage of the filtering material remains unchanged
In 0.1 square metre of section.
By using above-mentioned technical proposal, the dosage of filtering material is constant, its filter area is set in fixed range
It is interior, convenient for being filtered for multiple times by interior loop test equipment, improve the efficiency of its test.
Preferably, needing test contaminant itself to decay when the volume of the test chamber is more than or equal to 30 cubic metres
Filter efficiency ηSelf damping:
Then ηFilter/material=ηAlways-ηSelf damping
It is needed when filter cabin volume is greater than 30 cubic metres to pollutant itself by using above-mentioned technical proposal
Decaying is tested, to guarantee the accurate of in large volume filter cabin filter efficiency.
Preferably, Clean air delivery rate calculation formula are as follows:
Q=ηFilter/material×v×60
In formula: Q is Clean air delivery rate, unit m3/h；
ηFilter/materialFor filter efficiency of filter/material, unit %；
V is interior loop test equipment air quantity, unit m3/min。
It by using above-mentioned technical proposal, in micro filters, needs to carry out self damping test, is calculating final mistake
It needs to remove the efficiency numbers of its self damping when filtering efficiency, and cleaning can be calculated by final filtering material filter efficiency
Air capacity.
Preferably, the test material of the filter paper type is mounted directly to be clipped in test equipment and is tested, institute
It states particulate filter material to be bonded in lower resistance mesh sheet using glue, and the dosage of filtering material is fixed on 100-300g/m2
Between.
By using above-mentioned technical proposal, filtering material selects papery or granular filtering material, papery to pass through
Installation folder is fixed, particle to be bonded in lower resistance by glue online, it is uniform to be distributed, and the dosage of filtering material is controlled
In a certain range, guarantee that air can be filtered uniformly.
Preferably, the unit of the air quantity is m3/ h, and conversion method is 60m3/ h=1m3/min。
Preferably, the linear tropic of test data, calculates square of the correlativity coefficients R between test data
Not less than 0.95, and calculation formula are as follows:
Xi=ti
Υi=lncti
R2Square of related coefficient；
tiFor i-th of sample point corresponding time, unit min；
lnctiThe logarithm of pollutant concentration is corresponded to for i-th of sample point；
N is sampling number.
Gaseous pollutant removal rate formulation process in unit time:
In formula:
σ t is the pollutants removal rate in the unit time, unit %.
CtFor in time t in test chamber gaseous pollutant concentration, unit be PPM or mg/m3；
C0For starting when test chamber in gaseous pollutant concentration, unit be PPM or mg/m3；
It can be with available formula by above formula
In formula:
σ t is the pollutants removal rate in the unit time, unit %.
T is unit time, unit min；
ηFilter/materialFor filter efficiency of filter/material, unit %
V is interior loop test equipment air quantity, unit m3/min。
V is test chamber volume, unit m3。
E is irrational number.
The transformation of 10 powers is done to above-mentioned formula,
Above formula Lge=1/ln10
Ln10 takes 2.3
Abbreviation above-mentioned formula obtains
In formula:
σ t is the pollutants removal rate in the unit time, unit %.
T is unit time, unit min；
ηFilter/materialFor filter efficiency of filter/material, unit %
V is interior loop test equipment air quantity, unit m3/min。
V is test chamber volume, unit m3。
Guarantee test by calculating the administration calculated between test data by using above-mentioned technical proposal
Data are accurate, to play the role of regulation to test result.
In conclusion the technical program has the advantage that
One, the present invention tests under constant wind quantity, can directly by air quantity and test data calculate the material or
An entire filter efficiency of the filter screen under the air quantity.
Two, the invention single filtrate testing time, the times such as relatively former inter-hole testing greatly shortened within one hour.
Three, the invention shows filtrate test result directly with a filter efficiency and Clean air delivery rate, can be to not
Removal effect with material is intuitively compared, and new material is facilitated to develop.
Four, present invention test only needs a pollutant monitoring device that can be tested, than " GBT 14295-2008 is empty
Air filter " test need two pollutant monitoring devices test it is simpler quick.
Five, invention pollutant generation only needs that a small amount of gaseous pollutant occurs, it is ensured that pollutant concentration in test chamber
Reach requirement, it is more efficient and convenient up to stabilization compared to gaseous pollutant concentration is debugged in ducting system.Save survey
Try the time.
Six, the invention test result can intuitively be shown as a filter efficiency and Clean air delivery rate, can obtain simultaneously
To the test result of satisfaction " GBT 18801-2015 air purifier " and " GBT 14295-2008 air filter ".
Seven, the present invention is tested in cabin, and gaseous pollutant occurrence quantity is few, and the gaseous contamination amount of discharge is also few, is reduced
Environmental pollution caused by test.
Eight, the present invention can quickly be given at unit time contaminant removal efficiency in test chamber, energy by test result
Enough provide the simple Performance evaluation criterion of intuitive product and semi-finished product.
Detailed description of the invention
Fig. 1 is a kind of flow chart of method for capableing of rapid evaluation filter filtrate removal gaseous contamination physical performance.
Specific embodiment
Below in conjunction with drawings and examples, the present invention will be described in further detail.It should be appreciated that described herein
Specific examples are only used to explain the present invention, is not intended to limit the present invention.
Embodiment 1
As described in Figure 1: a kind of method for capableing of rapid evaluation filter filtrate removal gaseous contamination physical performance, feature exist
In: step 1 is that certain density gaseous pollutant is added in test chamber, opens agitation fan, and stirring uses phase after ten minutes
The tester test gaseous pollutant concentration answered, records primary data t0；Step 2 is to open the clamping interior circulation of filtering material
Fixed air quantity is arranged in test equipment, records a data at intervals of two minutes, is recorded as t respectively1、t2、t3Until tn, wherein n
Unit is min；Step 3 is to calculate filter efficiency by filter efficiency formula；Test chamber is small test chamber or big test chamber, gaseous state
The concentration of pollutant is 5 times of room air standard, and filtering material is filtering sheet type.
Pollutant initial concentration in test chamber is C0, test chamber volume is V, and filtering material is fixing air quantity v next time
Filter efficiency is that η is constant, and pollutant concentration changing value is C in test chambertIt is t with the time, pollutant concentration changes C in test chambert
Relationship between time t is
- dct*V=η * ν * dt*ct
The above-mentioned differential equation is solved, concentration C in test chamber is obtainedtWith the relational expression of time t
In formula:
CtFor in time t in test chamber gaseous pollutant concentration, unit PPM；
C0For starting when test chamber in gaseous pollutant concentration, unit PPM；
η is a filter efficiency of filtering material, unit %；
V is test chamber volume, unit m3；
Loop test equipment air quantity in v, unit m3/min。
Exponential transform is done to above-mentioned formula, obtains linear equation:
Linear regression, the calculation formula of filter efficiency η are done to test data record data are as follows:
In formula: η is filter efficiency of filtering material, unit %；
tiFor i-th of sample point corresponding time, unit min；
lnctiThe logarithm of pollutant concentration is corresponded to for i-th of sample point；
N is sampling number.
Change C by the concentration in test chambertRelation formula between time t is converted, according in conversion cabin
Initial concentration C0, the relationship of test chamber volume V, fixed air quantity v, filter efficiency between η calculates filter efficiency η.
The volume of small test chamber is 3 cubic metres, and the volume of big test chamber is 30 cubic metres.Test chamber uses adjustable size
Two kinds of test chamber can be applicable in different types of filtrate, do not need to carry out self damping test using small test chamber, simplify
Testing process, big test chamber can satisfy the test request of biggish filtrate, be able to bear biggish air quantity.
Per hour for 20 cubic metres, the test air quantity of big test chamber is 100 cubic metres per small to the test air quantity of small test chamber
When, and test air quantity can be adjusted voluntarily before testing, test air quantity immobilizes during the test.The test of size test chamber
Air quantity is adjustable, can need filtrate to be tested adjust guarantee that the filter screen of test has to identical test air quantity can be right
Compare property.
In the case that the dosage of filtering material remains unchanged, the area of filtering material is 0.01 square metre.Filtering material
Dosage is constant, its filter area is set in fixed range, convenient for being filtered for multiple times by interior loop test equipment, mentions
The efficiency of its high test.
When the volume of test chamber is more than or equal to 30 cubic metres, test contaminant itself decaying filter efficiency η is neededSelf damping:
Then ηFilter/material=ηAlways-ηSelf damping
When filter cabin volume is greater than 30 cubic metres, the decaying to pollutant itself is needed to test, to guarantee
Filter efficiency is accurate in large volume filter cabin.
Preferably, Clean air delivery rate calculation formula are as follows:
Q=ηFilter/material×v×60
In formula: Q is Clean air delivery rate, unit m3/h；
ηFilter/materialFor filter efficiency of filter/material, unit %；
V is interior loop test equipment air quantity, unit m3/min。
It in micro filters, needs to carry out self damping test, needs to remove it when calculating final filter efficiency certainly
The efficiency numbers of decaying, and Clean air delivery rate can be calculated by final filtering material filter efficiency.
Being mounted directly to be clipped in test equipment of the test material of filter paper type is tested, and the dosage of filtering material is solid
It is scheduled on 100g/m2Between.Filtering material selects papery or granular filtering material, papery to fix by installation folder,
Even distribution, and in a certain range by the control of the dosage of filtering material, guarantee that air can be filtered uniformly.
The unit of air quantity is m3/ h, and conversion method is 60m3/ h=1m3/min。
The linear tropic of test data, calculate test data between correlativity coefficients R square be not less than 0.95,
And calculation formula are as follows:
Xi=ti
Υi=lncti
R2Square of related coefficient；
tiFor i-th of sample point corresponding time, unit min；
lnctiThe logarithm of pollutant concentration is corresponded to for i-th of sample point；
N is sampling number.
By calculating the administration calculated between test data, guarantee that the data of test are accurate, to tie to test
Fruit plays the role of regulation.
Embodiment 2
A kind of method for capableing of rapid evaluation filter filtrate removal gaseous contamination physical performance, feature exist as shown in Figure 1:
In: step 1 is that certain density gaseous pollutant is added in test chamber, opens agitation fan, and stirring uses phase after ten minutes
The tester test gaseous pollutant concentration answered, records primary data t0；Step 2 is to open the clamping interior circulation of filtering material
Fixed air quantity is arranged in test equipment, every data of 5 minutes records, is recorded as t respectively1、t2、t3Until tn, wherein n
Unit is min；Step 3 is to calculate filter efficiency by filter efficiency formula；Test chamber is small test chamber or big test chamber, gaseous state
The concentration of pollutant is 15 times of room air standard, and filtering material is divided into filtering sheet type and particulate filter material.
Pollutant initial concentration in test chamber is C0, test chamber volume is V, and filtering material is fixing air quantity v next time
Filter efficiency is that η is constant, and pollutant concentration changing value is C in test chambertIt is t with the time, pollutant concentration changes C in test chambert
Relationship between time t is
- dct*V=η * ν * dt*ct
The above-mentioned differential equation is solved, concentration C in test chamber is obtainedtWith the relational expression of time t
In formula:
CtFor in time t in test chamber gaseous pollutant concentration, unit mg/m3；
C0For starting when test chamber in gaseous pollutant concentration, unit mg/m3；
η is a filter efficiency of filtering material, unit %；
V is test chamber volume, unit m3；
Loop test equipment air quantity in v, unit m3/min。
Exponential transform is done to above-mentioned formula, obtains linear equation:
Linear regression, the calculation formula of filter efficiency η are done to test data record data are as follows:
In formula: η is filter efficiency of filtering material, unit %；
tiFor i-th of sample point corresponding time, unit min；
lnctiThe logarithm of pollutant concentration is corresponded to for i-th of sample point；
N is sampling number.
Change C by the concentration in test chambertRelation formula between time t is converted, according in conversion cabin
Initial concentration C0, the relationship of test chamber volume V, fixed air quantity v, filter efficiency between η calculates filter efficiency η.
The volume of small test chamber is 5 cubic metres, and the volume of big test chamber is 100 cubic metres.Test chamber is using adjustable big
Small two kinds of test chamber, can be applicable in different types of filtrate, not need to carry out self damping test, letter using small test chamber
Testing process is changed, big test chamber can satisfy the test request of biggish filtrate, be able to bear biggish air quantity.
Per hour for 100 cubic metres, the test air quantity of big test chamber is 1000 cubic metres every to the test air quantity of small test chamber
Hour, and test air quantity can be adjusted voluntarily before testing, test air quantity immobilizes during the test.The survey of size test chamber
It is adjustable to try air quantity, can need filtrate to be tested adjust guarantee that the filter screen of test has to identical test air quantity can
It is comparative.
In the case that the dosage of filtering material remains unchanged, the area of filtering material is 0.1 square metre.The use of filtering material
It measures constant, its filter area is set in fixed range, convenient for being filtered for multiple times by interior loop test equipment, improved
Its efficiency tested.
When the volume of test chamber is more than or equal to 30 cubic metres, test contaminant itself decaying filter efficiency η is neededSelf damping:
Then ηFilter/material=ηAlways-ηSelf damping
When filter cabin volume is greater than 30 cubic metres, the decaying to pollutant itself is needed to test, to guarantee
Filter efficiency is accurate in large volume filter cabin.
Clean air delivery rate calculation formula are as follows:
Q=ηFilter/material×v×60
In formula: Q is Clean air delivery rate, unit m3/h；
ηFilter/materialFor filter efficiency of filter/material, unit %；
V is interior loop test equipment air quantity, unit m3/min。
It in micro filters, needs to carry out self damping test, needs to remove it when calculating final filter efficiency certainly
The efficiency numbers of decaying, and Clean air delivery rate can be calculated by final filtering material filter efficiency.
Being mounted directly to be clipped in test equipment of the test material of filter paper type is tested, and particulate filter material uses
Glue is bonded in lower resistance mesh sheet, and the dosage of filtering material is fixed as 300g/m2。
Filtering material selects papery or granular filtering material, papery to fix by installation folder, and particle passes through
It is online that glue is bonded in lower resistance, uniform to be distributed, and in a certain range by the control of the dosage of filtering material, guarantees empty
Gas can be filtered uniformly.
The unit of air quantity is m3/ h, and conversion method is 60m3/ h=1m3/min。
The linear tropic of test data, calculate test data between correlativity coefficients R square be not less than 0.95,
And calculation formula are as follows:
Xi=ti
Υi=lncti
R2Square of related coefficient；
tiFor i-th of sample point corresponding time, unit min；
lnctiThe logarithm of pollutant concentration is corresponded to for i-th of sample point；
N is sampling number.
By calculating the administration calculated between test data, guarantee that the data of test are accurate, to tie to test
Fruit plays the role of regulation.
Gaseous pollutant removal rate formulation process in unit time:
In formula:
σ t is the pollutants removal rate in the unit time, unit %.
CtFor in time t in test chamber gaseous pollutant concentration, unit be PPM or mg/m3；
C0For starting when test chamber in gaseous pollutant concentration, unit be PPM or mg/m3；
It can be with available formula by above formula
In formula:
σ t is the pollutants removal rate in the unit time, unit %.
T is unit time, unit min；
ηFilter/materialFor filter efficiency of filter/material, unit %
V is interior loop test equipment air quantity, unit m3/min。
V is test chamber volume, unit m3。
E is irrational number.
The transformation of 10 powers is done to above-mentioned formula,
Above formula Lge=1/ln10
Ln10 takes 2.3
Abbreviation above-mentioned formula obtains
In formula:
σ t is the pollutants removal rate in the unit time, unit %.
T is unit time, unit min；
ηFilter/materialFor filter efficiency of filter/material, unit %
V is interior loop test equipment air quantity, unit m3/min。
V is test chamber volume, unit m3。
The preferred embodiment of the present invention has shown and described in above description, as previously described, it should be understood that the present invention is not office
Be limited to form disclosed herein, should not be regarded as an exclusion of other examples, and can be used for various other combinations, modification and
Environment, and can be changed within that scope of the inventive concept describe herein by the above teachings or related fields of technology or knowledge
It is dynamic.And changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention, then it all should be appended by the present invention
In scope of protection of the claims.
Claims (10)
1. the method that one kind is capable of rapid evaluation filter filtrate removal gaseous contamination physical performance, it is characterised in that: step 1 is to survey
It tries that certain density gaseous pollutant is added in cabin, opens agitation fan, stirring is tested using corresponding tester after ten minutes
Gaseous pollutant concentration records primary data t0；Step 2 is to open the clamping interior loop test equipment of filtering material, setting
Fixed air quantity is recorded as t every data of 2-5 minutes records respectively1、t2、t3Until tn, wherein the unit of n is min；
Step 3 is to calculate filter efficiency by filter efficiency formula；The test chamber is small test chamber or big test chamber, and the gaseous state is dirty
The concentration for contaminating object is 5-15 times of room air standard, and the filtering material is divided into filtering sheet type and particulate filter material.
2. the method that one kind according to claim 1 is capable of rapid evaluation filter filtrate removal gaseous contamination physical performance,
Be characterized in that: the pollutant initial concentration in the test chamber is C0, test chamber volume is V, and filtering material is at fixed air quantity v
Filter efficiency is that η is constant, and pollutant concentration changing value is C in test chambertIt is t, the calculation formula of filter efficiency η with the time
Are as follows:
In formula: η is filter efficiency of filtering material, unit %；
tiFor i-th of sample point corresponding time, unit min；
lnctiThe logarithm of pollutant concentration is corresponded to for i-th of sample point；
N is sampling number.
3. the method that one kind according to claim 1 is capable of rapid evaluation filter filtrate removal gaseous contamination physical performance,
Be characterized in that: the volume of the small test chamber is between 3-5 cubic metres, and the volume of the big test chamber is in 30-100 cubic meter
Between.
4. the method that one kind according to claim 1 is capable of rapid evaluation filter filtrate removal gaseous contamination physical performance,
Be characterized in that: the test air quantity of the small test chamber 20-100 cubic metres per hour between, the test wind of the big test chamber
It measures at 100-1000 cubic metres per hour, and test air quantity can voluntarily adjust before testing, test air quantity is solid during the test
It is fixed constant.
5. the method that one kind according to claim 1 is capable of rapid evaluation filter filtrate removal gaseous contamination physical performance,
Be characterized in that: in the case that the dosage of the filtering material remains unchanged, the area of filtering material is in 0.01-0.1 square metres of area
In.
6. the method that one kind according to claim 1 is capable of rapid evaluation filter filtrate removal gaseous contamination physical performance,
It is characterized in that: when the volume of the test chamber is more than or equal to 30 cubic metres, needing test contaminant itself decaying filter efficiency
ηSelf damping:
Then ηFilter/material=ηAlways-ηSelf damping。
7. the method that one kind according to claim 1 is capable of rapid evaluation filter filtrate removal gaseous contamination physical performance,
It is characterized in that: Clean air delivery rate calculation formula are as follows:
Q=ηFilter/material×v×60
In formula: Q is Clean air delivery rate, unit m3/h；
ηFilter/materialFor filter efficiency of filter/material, unit %；
V is interior loop test equipment air quantity, unit m3/min。
8. the method that one kind according to claim 1 is capable of rapid evaluation filter filtrate removal gaseous contamination physical performance,
Be characterized in that: the test material of the filtering sheet type is mounted directly to be clipped in test equipment and is tested, the graininess
Filtering material is bonded in lower resistance mesh sheet using glue, and the dosage of filtering material is fixed on 100-300g/m2Between.
9. the method that one kind according to claim 1 is capable of rapid evaluation filter filtrate removal gaseous contamination physical performance,
Be characterized in that: the linear tropic of test data calculates square being not less than for the correlativity coefficients R between test data
0.95, and calculation formula are as follows:
Xi=ti
Υi=ln cti
R2Square of related coefficient；
tiFor i-th of sample point corresponding time, unit min；
lnctiThe logarithm of pollutant concentration is corresponded to for i-th of sample point；
N is sampling number.
10. the method that one kind according to claim 1 is capable of rapid evaluation filter filtrate removal gaseous contamination physical performance,
It is characterized by the gaseous pollutant removal rate σ t that test result was given in certain air quantity lower unit time, calculation formula
It is as follows:
In formula:
σ t is the pollutants removal rate in the unit time, and unit %, t are unit time, unit min；
ηFilter/materialFor filter efficiency of filter/material, unit %；
V is interior loop test equipment air quantity, unit m3/min；
V is test chamber volume, unit m3。
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