CN106289828A - A kind of air purifier and filter detection method in service life thereof - Google Patents
A kind of air purifier and filter detection method in service life thereof Download PDFInfo
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- CN106289828A CN106289828A CN201610563631.3A CN201610563631A CN106289828A CN 106289828 A CN106289828 A CN 106289828A CN 201610563631 A CN201610563631 A CN 201610563631A CN 106289828 A CN106289828 A CN 106289828A
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- 238000001514 detection method Methods 0.000 title claims abstract description 57
- 239000007787 solid Substances 0.000 claims abstract description 82
- 239000000356 contaminant Substances 0.000 claims abstract description 76
- 230000005484 gravity Effects 0.000 claims abstract description 62
- 239000000428 dust Substances 0.000 claims abstract description 42
- 239000008187 granular material Substances 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 15
- 230000000694 effects Effects 0.000 claims abstract description 11
- 206010011906 Death Diseases 0.000 claims description 74
- 239000013618 particulate matter Substances 0.000 claims description 39
- 238000001914 filtration Methods 0.000 claims description 23
- 239000002245 particle Substances 0.000 claims description 13
- 238000011109 contamination Methods 0.000 claims description 10
- 238000002474 experimental method Methods 0.000 description 8
- 238000009825 accumulation Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000007084 catalytic combustion reaction Methods 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0031—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0037—NOx
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/004—CO or CO2
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0047—Organic compounds
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/005—H2
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2273/00—Operation of filters specially adapted for separating dispersed particles from gases or vapours
- B01D2273/18—Testing of filters, filter elements, sealings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The present invention provides a kind of air purifier and filter detection method in service life thereof, and the method is: A, the calculating current gravity value of gaseous contaminant filter, current differential pressure, current dirt content and current gas filter efficiency；If the current gravity value of B is more than threshold value, or current differential pressure is more than threshold value, or current dirt content is more than threshold value, or current gas filter efficiency is less than threshold value, performs step E；C, the calculating current gravity value of particulate solid filter, current differential pressure, current dust containing capacity and present granule thing filter efficiency；If the current gravity value of D is more than threshold value, or current differential pressure is more than threshold value, or current dust containing capacity is more than threshold value, or present granule thing filter efficiency is less than threshold value, performs step E；E, send the life-span and expire prompting.The method is capable of, to the most accurately detection in filter service life in depurator, reminding user to change filter in time, it is ensured that clean-up effect, it is to avoid the secondary pollution problem that filter replacement causes not in time.
Description
Technical field
The present invention relates to depurator technical field, particularly relate to a kind of air purifier and filter detection in service life thereof
Method.
Background technology
Air purifier is according to air quality situation, controls wind pushing mechanism and drives air to flow through purifier, in air
Dust, PM2.5, the pollutant such as antibacterial are cleaned device absorption, thus reach to purify the purpose of air.Purifier is empty
The core component of gas purifier, but, along with the use of air purifier, pollutant are constantly piled up in purifier, finally
Its total amount that can accommodate can be exceeded.At this time, it may be necessary to change in time or cleaning device, the otherwise purification energy of air purifier
Power will be substantially reduced, and even have the risk of secondary pollution.And at present for the detection in service life of purifier and forbidden
Really, therefore allow for user and be difficult to accurately understand the clean-up effect of depurator, affect practical effect and the use of depurator
Experience.
Therefore, prior art needs to improve further.
Summary of the invention
In view of the deficiencies in the prior art, the invention reside in a kind of air purifier of offer and filter detection in service life thereof
Method, it is intended to the problem solving accurate measurements filter service life.
Technical scheme is as follows:
The filter detection method in service life of a kind of air purifier, wherein, described filter includes arranging along air intake direction
Gaseous contaminant filter and particulate solid filter, wherein, described filter detection method in service life is:
A, the current gravity value of acquisition gaseous contaminant filter, and utilize currently air quantity, gaseous contaminant filtration in depurator
The gas concentration of device both sides and barometric information be calculated respectively the current differential pressure of gaseous contaminant filter, current dirt content and
Current gas filter efficiency；
B, respectively by the current gravity value of gaseous contaminant filter, current differential pressure, current dirt content and current gas filter effect
Rate is compared with corresponding predetermined threshold value, if the current gravity value of gaseous contaminant filter is more than presetting end-of-life gravity
Value, or the current differential pressure of gaseous contaminant filter is more than its default end-of-life pressure difference, or current dirt content is more than
Preset end-of-life dirt content, or current gas filter efficiency is less than presetting end-of-life gas filtration efficiency value, then perform
Step E；
C, the current gravity value of acquisition particulate solid filter, and utilize currently air quantity, particulate solid filtration in depurator
The particle concentration of device both sides and barometric information are calculated the current differential pressure of particulate solid filter, current dust containing capacity respectively
With present granule thing filter efficiency；
D, respectively by the current gravity value of particulate solid filter, current differential pressure, current dust containing capacity and present granule thing filter
Efficiency is compared with corresponding predetermined threshold value, if the current gravity value of particulate solid filter is more than presetting end-of-life weight
Force value, or particulate solid filter current differential pressure is more than its default end-of-life pressure difference, or current dust containing capacity is more than
Preset end-of-life dust containing capacity, or present granule thing filter efficiency is less than presetting end-of-life particulate matter filter efficiency value, then
Perform step E；
E, send filter life and expire prompting.
The filter detection method in service life of described air purifier, wherein, working as of described gaseous contaminant filter
Front gravity value is obtained by the first gravity sensor detection being arranged between gaseous contaminant filter and air inlet, described solid
The current gravity value of state particulate filter is by being arranged between particulate solid filter and gaseous contaminant filter
Second gravity sensor detection obtains.
The filter detection method in service life of described air purifier, wherein, the current air quantity of described air purifier
Utilize the current flow of the detection of the flow sensor being arranged between particulate solid filter and air outlet and be arranged on
The rotary speed data of the motor of air outlet position is calculated, and the current air quantity of described air purifier calculates according to equation below:
Current air quantity F1=F0 × S1/S0, wherein, F0 with S0 is respectively air quantity corresponding to current motor rotating speed in the case of new filter screen and goes out
Air port flow velocity, S1 be flow sensor detection when front air outlet flow velocity.
The filter detection method in service life of described air purifier, wherein, described gaseous contaminant filter both sides
Gas concentration data pass by being arranged on the first gas sensor of gaseous contaminant filter both sides and the second gas respectively
Sensor detection obtains, and described first gas sensor is arranged between gaseous contaminant filter and air inlet, described second gas
Body sensor is arranged between gaseous contaminant filter and particulate solid filter, and wherein, described gaseous contaminant filters
The current gas filter efficiency of device calculates according to equation below: current gas filter efficiency=(the first gas sensor data-the
Two gas sensor data)/the first gas sensor data × 100%.
The filter detection method in service life of described air purifier, wherein, described gaseous contaminant filter is with solid
The barometric information of state particulate filter both sides is passed by the first pressure transducer, the second pressure transducer and the 3rd pressure respectively
Sensor detection obtains, and described first pressure transducer is arranged between gaseous contaminant filter and air inlet, described second pressure
Force transducer is arranged between gaseous contaminant filter and particulate solid filter, and described 3rd pressure transducer is arranged on
Between particulate solid filter and air outlet, wherein, the current differential pressure of described gaseous contaminant filter is according to equation below
Calculate: gaseous contaminant filter current differential pressure=the second pressure sensor data the-the first pressure sensor data, described solid-state
The current differential pressure of particulate filter calculates according to equation below: particulate solid filter current differential pressure=the 3rd pressure sensing
Device data the-the second pressure sensor data.
The filter detection method in service life of described air purifier, wherein, described particulate solid filter both sides
Particle concentration respectively by being arranged on the first particulate matter sensors and second particulate matter of particulate solid filter both sides
Sensor detection obtains, described first particulate matter sensors be arranged on gaseous contaminant filter and particulate solid filter it
Between, described second gas sensor is arranged between particulate solid filter and air outlet, wherein, and described particulate solid mistake
The present granule thing filter efficiency of filter calculates according to equation below: present granule thing filter efficiency=(the first particulate matter sensors
Data the-the second particulate matter sensors data)/the first particulate matter sensors data × 100%.
The filter detection method in service life of described air purifier, wherein, working as of described gaseous contaminant filter
Front dirt content calculates according to equation below: current dirt content=accumulative (real-time air quantity per second × gas concentration per second is poor), wherein,
The first gas sensor that gas concentration difference per second is inscribed when being each and the difference of the second gas sensor data；
The current dust containing capacity of described particulate solid filter calculates according to equation below: current dust containing capacity=accumulative is (per second in real time
Air quantity × particle concentration per second is poor), wherein, the first particulate matter sensors and that particle concentration difference per second is inscribed when being each
The difference of two particulate matter sensors data.
The filter detection method in service life of described air purifier, wherein, if particulate solid filter is current
Gravity value is less than presetting end-of-life gravity value, and particulate solid filter current differential pressure is less than its default end-of-life pressure
Difference, and current dust containing capacity is less than presetting end-of-life dust containing capacity, and present granule thing filter efficiency is more than presetting the life-span
Terminate particulate matter filter efficiency value, then return step A.
A kind of air purifier, wherein, the depurator of described air purifier uses method as above detection to use
Life-span.
Beneficial effect: the present invention provides a kind of air purifier and filter detection method in service life, the method phase
It is capable of the most accurately detection in the service life of filter in depurator compared with prior art such that it is able to remind in time
User changes filter, it is ensured that the clean-up effect of depurator, it also avoid the secondary caused not in time due to filter replacement
The problem polluted, is greatly improved the experience effect of depurator.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of air purifier in the specific embodiment of the invention.
Detailed description of the invention
The present invention provides a kind of air purifier and filter detection method in service life thereof, for make the purpose of the present invention,
Technical scheme and effect are clearer, clear and definite, and the present invention is described in more detail below.Should be appreciated that described herein
Specific embodiment only in order to explain the present invention, is not intended to limit the present invention.
The depurator for using filter detection method in service life of the present invention as shown in Figure 1, the mistake of described depurator
Filter includes being provided with gaseous contaminant filter 70 and solid granulates contamination filter 60 between air inlet and air outlet;Separately
Also include being arranged on outward the blower fan of air outlet, processor 80, controller and display floater 90, described display floater 90 and described place
Reason device 80 connects for the signal of telecommunication.Described processor 80 is connected with controller, controller respectively with blower fan, gaseous contaminant filter
70 and solid granulates contamination filter 60 connect.
It is provided with the first gas being connected with processor 80 respectively between described gaseous contaminant filter 70 and air inlet to pass
Sensor the 10, first pressure transducer 40 and the first gravity sensor 20, described gaseous contaminant filter 70 and solid granulates are dirty
Dye thing filter 60 between be provided be connected with processor 80 respectively first particulate matter sensors the 30, second pressure transducer 41,
Second gas sensor 11 and the second gravity sensor 21, is provided with between described solid granulates contamination filter 60 and air outlet
Be connected with processor 80 respectively is provided with the second particulate matter sensors 31, flow sensor 50 and the 3rd pressure transducer 42.
The filter detection method in service life of above-mentioned air purifier is carried out as follows:
A, the current gravity value of acquisition gaseous contaminant filter, and utilize currently air quantity, gaseous contaminant filtration in depurator
The gas concentration of device both sides and barometric information be calculated respectively the current differential pressure of gaseous contaminant filter, current dirt content and
Current gas filter efficiency.
Wherein, current gravity value the first gravity sensor detection of described gaseous contaminant filter obtains,
The current air quantity of described air purifier utilizes the current flow and the rotary speed data meter of motor that flow sensor detects
Obtaining, the current air quantity of described air purifier calculates according to equation below: current air quantity F1=F0 × S1/S0, wherein, and F0
Be respectively air quantity corresponding to the current motor rotating speed recorded in advance in the case of new filter screen and air outlet flow velocity with S0, S1 is that flow velocity passes
Sensor detection when front air outlet flow velocity.F1 is real-time air quantity, and it changes according to motor speed and velocity ratio.
Further, the gas concentration data of described gaseous contaminant filter both sides are respectively by the first gas sensor
Obtain with the second gas sensor detection, between the first gas sensor and the second gas sensor, there is data difference, wherein, institute
The current gas filter efficiency stating gaseous contaminant filter calculates according to equation below: current gas filter efficiency=(the first gas
Body sensor data the-the second gas sensor data)/the first gas sensor data × 100%.Along with gaseous contaminant filters
The pot life of device increases, and its gas filtration efficiency can be gradually lowered.
It addition, described first gas sensor and the second gas sensor are optical gas sensor and/or semiconductor gas
Body sensor and/or catalytic combustion type gas sensor.Optical gas sensor includes that direct absorption gas sensor, light are anti-
Answer the new sensor of gas sensor, other optical characteristic.Semiconductor gas sensor detectable gas is various flammable gas
Body CO, NO2, freon and imflammable gas H2、CH4.Catalytic combustion type sensor is applicable to flammable gas H2、CO、CH4Inspection
Survey.
Further, the barometric information of described gaseous contaminant filter and particulate solid filter both sides passes through respectively
First pressure transducer, the second pressure transducer and the detection of the 3rd pressure transducer obtain, and wherein, described gaseous contaminant filters
The current differential pressure (resistance) of device calculates according to equation below: gaseous contaminant filter current differential pressure=the second pressure transducer number
According to the-the first pressure sensor data.
Further, the current dirt content of described gaseous contaminant filter calculates according to equation below: current dirt content=
Accumulative (real-time air quantity per second × gas concentration per second is poor), wherein, the first gas that gas concentration difference per second is inscribed when being each passes
Sensor and the difference of the second gas sensor data, i.e. detection obtain the air quantity in each moment (each second) and the gas inscribed time this
Concentration difference is multiplied and the product accumulation in each moment is obtained dirt content.
B, respectively by the current gravity value of gaseous contaminant filter, current differential pressure, current dirt content and current gas mistake
Filter efficiency is compared with corresponding predetermined threshold value, if the current gravity value of gaseous contaminant filter is more than presetting end-of-life
Gravity value, or the current differential pressure of gaseous contaminant filter is more than its default end-of-life pressure difference, or current dirt content
More than presetting end-of-life dirt content, or current gas filter efficiency is less than presetting end-of-life gas filtration efficiency value, then
Perform step E.
The gaseous contaminant filter gravity value (meansigma methods) when end of life is obtained according to great many of experiments, and will
These data pre-set as the end-of-life gravity value of gaseous contaminant filter, in like manner, by great many of experiments by gaseous state
The pressure difference data (meansigma methods) that contamination filter measures when end of life as end-of-life pressure difference and sets in advance
Put, know the gaseous contaminant filter dirt content when end of life by great many of experiments, and using these data as
End-of-life dirt content pre-sets, and knows the gaseous contaminant filter gas when end of life by great many of experiments
Body filter efficiency value, and these data are pre-set as end-of-life gas filtration efficiency.
Utilizing above-mentioned pre-conditioned value to carry out or conditional judgment, concrete described step B is:
B1, by the current gravity value of gaseous contaminant filter with preset end-of-life gravity value compare, if gaseous state is dirty
The current gravity value of dye thing filter, more than presetting end-of-life gravity value, has illustrated the weight of current gaseous contaminant filter
Exceeding preset maximum value, gaseous contaminant filter has lost filtration, then perform step E, if current gravity value is less than pre-
If end-of-life gravity value, then perform step B2.
B2, by the current differential pressure of gaseous contaminant filter with preset end-of-life pressure difference compare, if gaseous state
The current differential pressure of contamination filter is more than its default end-of-life pressure difference, and the air-flow by gaseous contaminant filter is described
Resistance is more than preset maximum value, and gaseous contaminant filter laying dust has lost filtration the most, then perform step E, if working as
Front pressure reduction is less than its default end-of-life pressure difference, then perform step B3.
B3, by the current dirt content of gaseous contaminant filter with preset end-of-life dirt content compare, if gas
The current dirt content of state contamination filter is more than its default end-of-life dirt content, illustrates by gaseous contaminant filter
Dirt content is more than preset maximum value, and gaseous contaminant filter laying dust has lost filtration the most, then perform step E, if
Current dirt content less than its default end-of-life dirt content, then performs step B4.
B4, by the current gas filter efficiency value of gaseous contaminant filter with preset end-of-life gas filtration efficiency
Value is compared, if the current gas filter efficiency value of gaseous contaminant filter is imitated less than its default end-of-life gas filtration
Rate value, illustrates that gaseous contaminant filters by the gas filtration efficiency value of gaseous contaminant filter less than presetting minimum
Device laying dust is serious, and filter efficiency is low, is unsatisfactory for filtration, then perform step E, if current gas filter efficiency value is more than it
Preset end-of-life gas filtration efficiency value, then perform step C.
C, obtain the current gravity value of particulate solid filter, and utilize current air quantity, particulate solid in depurator
The particle concentration of filter both sides and barometric information are calculated the current differential pressure of particulate solid filter respectively, currently hold
Dust quantity and present granule thing filter efficiency.
Wherein, the current gravity value of described particulate solid filter is obtained by the second gravity sensor detection.
Further, the current differential pressure (resistance) of described particulate solid filter calculates according to equation below: solid-state
Grain thing filter current differential pressure=the 3rd pressure sensor data the-the second pressure sensor data.
Further, the particle concentration of described particulate solid filter both sides is respectively by being arranged on particulate solid
First particulate matter sensors of filter both sides and the detection of the second particulate matter sensors obtain, wherein, and described particulate solid mistake
The present granule thing filter efficiency of filter calculates according to equation below: present granule thing filter efficiency=(the first particulate matter sensors
Data the-the second particulate matter sensors data)/the first particulate matter sensors data × 100%.Obviously filter along with particulate solid
The pot life of device increases, and its particulate matter filter efficiency can be gradually lowered.
The current dust containing capacity of described particulate solid filter calculates according to equation below: current dust containing capacity=accumulative (per second
Air quantity × particle concentration per second is poor in real time), wherein, the first particulate matter sensors that particle concentration difference per second is inscribed when being each
Difference with the second particulate matter sensors data.Wherein, the first particulate matter sensors that particle concentration difference per second is inscribed when being each
The air quantity in each moment (each second) and the particulate matter inscribed time this is obtained with the difference of the second particulate matter sensors data, i.e. detection
Concentration difference is multiplied and the product accumulation in each moment is obtained dust containing capacity.
D, respectively by the current gravity value of particulate solid filter, current differential pressure, current dust containing capacity and present granule thing
Filter efficiency is compared with corresponding predetermined threshold value, if the current gravity value of particulate solid filter is more than presetting the life-span eventually
Only gravity value, or particulate solid filter current differential pressure is more than its default end-of-life pressure difference, or current dust containing capacity
More than presetting end-of-life dust containing capacity, or present granule thing filter efficiency is less than presetting end-of-life particulate matter filter efficiency
Value, then perform step E.
If it addition, the current gravity value of particulate solid filter is less than presetting end-of-life gravity value, and solid-state
Grain thing filter current differential pressure is less than its default end-of-life pressure difference, and current dust containing capacity holds dirt less than presetting end-of-life
Amount, and present granule thing filter efficiency is more than presetting end-of-life particulate matter filter efficiency value, and current time solid-state is described
Grain thing filter is in good working state, meets filtering requirement, and explanation gaseous contaminant filter remains on good the most simultaneously
Good berth state, filter effect is good, then return step A.
The particulate solid filter gravity value (meansigma methods) when end of life is obtained according to great many of experiments, and will
These data pre-set as the end-of-life gravity value of particulate solid filter, in like manner, by great many of experiments by solid-state
The pressure difference data (meansigma methods) that particulate filter measures when end of life as end-of-life pressure difference and sets in advance
Put, know the particulate solid filter dust containing capacity when end of life by great many of experiments, and using these data as
End-of-life dust containing capacity pre-sets, by great many of experiments know particulate solid filter when end of life
Grain thing filter efficiency value, and these data are pre-set as end-of-life particulate matter filter efficiency.
Utilizing above-mentioned pre-conditioned value to carry out or conditional judgment, concrete described step D is:
D1, by the current gravity value of particulate solid filter with preset end-of-life gravity value compare, if solid-state
The current gravity value of grain thing filter, more than presetting end-of-life gravity value, has illustrated the weight of current particulate solid filter
Exceed preset maximum value, particulate solid filter must laying dust serious, lost filtration, then performed step E, if currently
Gravity value less than presetting end-of-life gravity value, then performs step D2.
D2, by the current differential pressure of particulate solid filter with preset end-of-life pressure difference compare, if solid-state
The current differential pressure of particulate filter is more than its default end-of-life pressure difference, and the air-flow by particulate solid filter is described
Resistance is more than preset maximum value, and particulate solid filter laying dust has lost filtration the most, then perform step E, if working as
Front pressure reduction is less than its default end-of-life pressure difference, then perform step D3.
D3, the current dust containing capacity of particulate solid filter is compared with the end-of-life dust containing capacity preset, if solid
The current dust containing capacity of state particulate filter is more than its default end-of-life dust containing capacity, illustrates by particulate solid filter
Dust containing capacity is more than preset maximum value, and particulate solid filter laying dust has lost filtration the most, then perform step E, if
Current dust containing capacity less than its default end-of-life dirt content, then performs step D4.
D4, by the present granule thing filter efficiency value of particulate solid filter with preset end-of-life particulate matter filter
Efficiency value is compared, if the present granule thing filter efficiency value of particulate solid filter is less than its default end-of-life granule
Thing filter efficiency value, illustrates by the particulate matter filter efficiency value of particulate solid filter less than presetting minimum, solid-state
Particulate filter laying dust is serious, and filter efficiency is low, is unsatisfactory for filtration, then perform step E, if present granule thing filters
Efficiency value is more than its default end-of-life particulate matter filter efficiency value, then return step A.
E, send filter life and expire prompting.
It is preferred that filter screen life situations can be shown in real time by display floater, drawn by said method detection
After the overdue result of filter life, issue the user with prompting, remind user to change filter screen in time.
Air purifier provided by the present invention, its depurator uses method as above to detect service life.This inspection
Effectively comprehensively closely bound up with the filter service life weight of survey method, resistance, accumulation purify PM2.5/ gaseous mass and
The numerical value such as filter efficiency, and utilize these data to calculate the life consumption of filter, big to the judgment accuracy of filter life
Big lifting, eliminates single detection method testing result unstable, the problem of poor accuracy.
The present invention provides a kind of air purifier and filter detection method in service life thereof, and the method is compared to existing skill
Art is capable of the most accurately detection in the service life of filter in depurator such that it is able to remind user to change in time
Filter, it is ensured that the clean-up effect of depurator, the problem that it also avoid the secondary pollution caused not in time due to filter replacement,
It is greatly improved the experience effect of depurator.
It should be appreciated that the application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can
To be improved according to the above description or to convert, all these modifications and variations all should belong to the guarantor of claims of the present invention
Protect scope.
Claims (9)
1. the filter detection method in service life of an air purifier, it is characterised in that described filter includes along air intake
The gaseous contaminant filter of direction setting and particulate solid filter, wherein, described filter detection method in service life
For:
A, the current gravity value of acquisition gaseous contaminant filter, and utilize currently air quantity, gaseous contaminant filtration in depurator
The gas concentration of device both sides and barometric information be calculated respectively the current differential pressure of gaseous contaminant filter, current dirt content and
Current gas filter efficiency；
B, respectively by the current gravity value of gaseous contaminant filter, current differential pressure, current dirt content and current gas filter effect
Rate is compared with corresponding predetermined threshold value, if the current gravity value of gaseous contaminant filter is more than presetting end-of-life gravity
Value, or the current differential pressure of gaseous contaminant filter is more than its default end-of-life pressure difference, or current dirt content is more than
Preset end-of-life dirt content, or current gas filter efficiency is less than presetting end-of-life gas filtration efficiency value, then perform
Step E；
C, the current gravity value of acquisition particulate solid filter, and utilize currently air quantity, particulate solid filtration in depurator
The particle concentration of device both sides and barometric information are calculated the current differential pressure of particulate solid filter, current dust containing capacity respectively
With present granule thing filter efficiency；
D, respectively by the current gravity value of particulate solid filter, current differential pressure, current dust containing capacity and present granule thing filter
Efficiency is compared with corresponding predetermined threshold value, if the current gravity value of particulate solid filter is more than presetting end-of-life weight
Force value, or particulate solid filter current differential pressure is more than its default end-of-life pressure difference, or current dust containing capacity is more than
Preset end-of-life dust containing capacity, or present granule thing filter efficiency is less than presetting end-of-life particulate matter filter efficiency value, then
Perform step E；
E, send filter life and expire prompting.
The filter detection method in service life of air purifier the most according to claim 1, it is characterised in that described gaseous state
The current gravity value of contamination filter is by the first gravity sensitive being arranged between gaseous contaminant filter and air inlet
Device detection obtains, and the current gravity value of described particulate solid filter is dirty with gaseous state by being arranged on particulate solid filter
The second gravity sensor detection between dye thing filter obtains.
The filter detection method in service life of air purifier the most according to claim 1, it is characterised in that described air
The current air quantity of depurator utilizes working as of the detection of the flow sensor being arranged between particulate solid filter and air outlet
The rotary speed data of front flow velocity and the motor that is arranged on air outlet position is calculated, and the current air quantity of described air purifier is pressed
Calculate according to equation below: current air quantity F1=F0 × S1/S0, wherein, F0 and S0 is respectively current motor rotating speed in the case of new filter screen
Corresponding air quantity and air outlet flow velocity, S1 be flow sensor detection when front air outlet flow velocity.
The filter detection method in service life of air purifier the most according to claim 1, it is characterised in that described gaseous state
The gas concentration data of contamination filter both sides are respectively by being arranged on the first gas biography of gaseous contaminant filter both sides
Sensor and the detection of the second gas sensor obtain, and described first gas sensor is arranged on gaseous contaminant filter and air inlet
Between, described second gas sensor is arranged between gaseous contaminant filter and particulate solid filter, wherein, described
The current gas filter efficiency of gaseous contaminant filter calculates according to equation below: current gas filter efficiency=(the first gas
Sensing data the-the second gas sensor data)/the first gas sensor data × 100%.
The filter detection method in service life of air purifier the most according to claim 1, it is characterised in that described gaseous state
The barometric information of contamination filter and particulate solid filter both sides is passed by the first pressure transducer, the second pressure respectively
Sensor and the detection of the 3rd pressure transducer obtain, and described first pressure transducer is arranged on gaseous contaminant filter and air inlet
Between, described second pressure transducer is arranged between gaseous contaminant filter and particulate solid filter, and the described 3rd
Pressure transducer is arranged between particulate solid filter and air outlet, wherein, and described gaseous contaminant filter current
Pressure reduction calculates according to equation below: gaseous contaminant filter current differential pressure=the second pressure sensor data the-the first pressure sensing
Device data, the current differential pressure of described particulate solid filter calculates according to equation below: particulate solid filter is currently pressed
Difference=the three pressure sensor data the-the second pressure sensor data.
The filter detection method in service life of air purifier the most according to claim 1, it is characterised in that described solid-state
The particle concentration of particulate filter both sides is respectively by being arranged on the first particulate matter biography of particulate solid filter both sides
Sensor and the detection of the second particulate matter sensors obtain, and described first particulate matter sensors is arranged on gaseous contaminant filter with solid
Between state particulate filter, described second gas sensor is arranged between particulate solid filter and air outlet, wherein,
The present granule thing filter efficiency of described particulate solid filter calculates according to equation below: present granule thing filter efficiency=
(first particulate matter sensors data the-the second particulate matter sensors data)/first particulate matter sensors data × 100%.
The filter detection method in service life of air purifier the most according to claim 4, it is characterised in that described gaseous state
The current dirt content of contamination filter calculates according to equation below: current dirt content=accumulative (real-time air quantity per second × gas per second
Bulk concentration is poor), wherein, the first gas sensor that gas concentration difference per second is inscribed when being each and the second gas sensor data it
Difference；
The current dust containing capacity of described particulate solid filter calculates according to equation below: current dust containing capacity=accumulative is (per second in real time
Air quantity × particle concentration per second is poor), wherein, the first particulate matter sensors and that particle concentration difference per second is inscribed when being each
The difference of two particulate matter sensors data.
The filter detection method in service life of air purifier the most according to claim 1, it is characterised in that if solid-state
The current gravity value of grain thing filter is less than presetting end-of-life gravity value, and particulate solid filter current differential pressure is less than
Its default end-of-life pressure difference, and current dust containing capacity is less than presetting end-of-life dust containing capacity, and present granule thing filters
Efficiency more than presetting end-of-life particulate matter filter efficiency value, then returns step A.
9. an air purifier, it is characterised in that the depurator of described air purifier uses such as any one of claim 1-8
Described method detects service life.
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Denomination of invention: A service life testing method for air purifier and its filter Effective date of registration: 20221104 Granted publication date: 20190115 Pledgee: Science and Technology Branch of Torch Development Zone of Zhongshan Rural Commercial Bank Co.,Ltd. Pledgor: GUANGDONG ERACLEAN TECHNOLOGY Co.,Ltd. Registration number: Y2022980020789 |
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