CN107883538A - The determination method, apparatus and its air cleaning facility of filter screen service life - Google Patents
The determination method, apparatus and its air cleaning facility of filter screen service life Download PDFInfo
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- CN107883538A CN107883538A CN201710935412.8A CN201710935412A CN107883538A CN 107883538 A CN107883538 A CN 107883538A CN 201710935412 A CN201710935412 A CN 201710935412A CN 107883538 A CN107883538 A CN 107883538A
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- filter screen
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Abstract
The present invention relates to gas dosing technical field, metering method and device, the determination method and device of filter screen service life, air cleaning facility and non-transient computer readable storage medium storing program for executing more particularly to a kind of filter screen purge amount, the metering method of the filter screen purge amount obtains including the material concentration in air in acquisition current slot and the actual air volume by filter screen, actual air volume according to accumulative purge amount of the theoretical air quantity with filter screen before current slot；Material concentration and actual air volume in air in current slot obtain the purge amount of current slot；The accumulative purge amount before purge amount and current slot to current slot is summed, and then actual air volume value can be avoided to produce error because filter screen pollutant is filled, the accurate purge amount for calculating filter screen.
Description
Technical field
The present invention relates to gas dosing technical field, and in particular to a kind of metering method of filter screen purge amount and device, filter
Determination method and device, air cleaning facility and the non-transient computer readable storage medium storing program for executing of net service life.
Background technology
At present, typically air is purified using filter screen for air cleaning facility, existing air cleaning facility, this
After there is a little filter screens certain useful life, air cleaning facility to use certain time limit, filter screen can be gradually by the mistake from air
The pollutant of filter fills up, at this moment the end-of-life of filter screen, if used again, filter screen can then lose purification of air performance, this
When just need to change filter screen.
The replacing of filter screen is carried out for when, and some filter screens are the fixed life-spans, such as the default life-span of filter screen is 1 year, filter
Net use 1 year after just progress filter screen replacing；Has plenty of the accumulation calculating life-span using filter screen usage time, filter screen, which is opened, to be made
After accumulation certain time, reach the replacing that default life-span hour just carries out filter screen.But the environment used due to filter screen is not
Together, the quality of air quality is different, and filter screen actual life-span and the life-span of fixation or measuring and calculating are not fully identical, and error is larger.
On the other hand, a kind of physical measurement method in air is provided in the prior art, it is empty in each sampling period T by measuring
The concentration C of material in gas, and measuring in the cycle T by the air mass flow V of fixed passage, by by the concentration of material in air
C and air mass flow and then the weight W of material in air in the cycle is calculated, and cumulative summation acquisition is carried out to weight W values
The gross mass of the certain time interior material by passage.The gross mass and the quality phase of predetermined adsorbable material in filter screen
Than, and then can accurately determine the life-span of filter screen.
Although further can accurately measure the life-span of filter screen using above-mentioned measuring method, still suffer from following ask
Topic：Air mass flow V measuring and calculating in above-mentioned parameter, it is the passage by being arranged on wind speed inductor between air inlet and gas outlet
It is interior, obtained by calculating the product of area of wind speed and passage, but in actual use, one is played in the channel because filter screen is set
Individual inhibition, the ventilation cross-sectional area of passage is the process for becoming big afterwards that first diminishes from air inlet to gas outlet, and with
The use of filter screen, the pollutant filling that filter screen is filtered from air, the cross-sectional area of filter screen ventilation still can constantly change, i.e.,
Ventilation cross-sectional area in actual passage is not a steady state value, thus causes the measuring and calculating of air mass flow V values and inaccurate, enters
And influence the accurate measurement in filter screen life-span.
The content of the invention
It is a primary object of the present invention to provide physical measurement method, apparatus and air cleaning facility in a kind of air, with
Solve the problems, such as accurately measure filter screen service life in the prior art.
To achieve the above object, the invention provides a kind of metering method of filter screen purge amount, including：
Obtain the material concentration in current slot in air and the actual air volume by the filter screen, the actual wind
Amount obtains according to accumulative purge amount of the theoretical air quantity with the filter screen before the current slot；
Material concentration and the actual air volume in air in the current slot obtain the current slot
Purge amount；
The purge amount of the current slot is summed to obtain with the accumulative purge amount before the current slot
To the accumulative purge amount of the current slot.
Further, in addition to establish under different theories air quantity, actual air volume and the accumulative purification of pollutant in clarifier
The database of the corresponding relation of amount, the actual air volume is according to theoretical air quantity and the filter screen before the current slot
Accumulative purge amount acquires out of described database.
The present invention also provides a kind of determination method of filter screen service life, including：
The accumulative purge amount of the filter screen is obtained according to the metering method of filter screen purge amount as described above；
It is predetermined to judge whether the difference between the theoretical purge amount of the filter screen and the accumulative purge amount of the filter screen is less than
Threshold value；
When the difference between the theoretical purge amount of the filter screen and the accumulative purge amount of the filter screen is less than predetermined threshold,
Determine that the filter screen reaches service life.
The present invention also provides a kind of metering device of filter screen purge amount, including：
Concentration and air quantity acquiring unit, for obtaining material concentration in current slot in air and by the filter
The actual air volume of net, the actual air volume is according to theoretical air quantity and accumulative purification of the filter screen before the current slot
Measure；
Purge amount acquiring unit, for the material concentration in air in the current slot and the actual air volume
Obtain the purge amount of the current slot；
Sum unit, for the accumulative purge amount before the purge amount to the current slot and the current slot
Summed to obtain the accumulative purge amount of the current slot.
Further, in addition to Database unit, for establishing under different theories air quantity, actual air volume and purification
Pollutant adds up the database of the corresponding relation of purge amount in device, and the actual air volume is according to theoretical air quantity and the filter screen in institute
Accumulative purge amount before stating current slot acquires out of described database.
The present invention also provides a kind of determining device of filter screen service life, including：
According to the metering device of filter screen purge amount as described above, for obtaining the accumulative purge amount of the filter screen；
Judging unit, for judging the difference between the theoretical purge amount of the filter screen and the accumulative purge amount of the filter screen
Whether predetermined threshold is less than；
Computing unit, for when the difference between the theoretical purge amount of the filter screen and the accumulative purge amount of the filter screen it is small
When predetermined threshold, determine that the filter screen reaches service life.
The present invention also provides a kind of air cleaning facility, including：
Material concentration sensor, for obtaining the material concentration in current slot in air；
Theoretical air quantity acquisition device, for obtaining the theory of the filter screen in current slot by the air cleaning facility
Air quantity；
Processor, for according to the theoretical air quantity and accumulative purge amount of the filter screen before the current slot
Obtain in current slot by the actual air volume of the filter screen, material concentration in air in the current slot and
The actual air volume obtains the purge amount of the current slot, and to the purge amount of the current slot with it is described current when
Between accumulative purge amount before section summed to obtain the accumulative purge amount of the current slot.
Further, the theoretical air quantity acquisition device is gear meter, wherein the different stalls of the gear meter are corresponding not
Same air quantity.
Further, the theoretical air quantity acquisition device is air flow sensor.
Further, the air cleaning facility also includes information transmitting unit, for summing to obtain the processor
The accumulative purge amount data of current slot exported.
Further, the air cleaning facility also includes display unit, the purge amount obtained for showing summation.
Further, the air cleaning facility also includes Tip element, for when the filter screen theoretical purge amount with
When difference between the accumulative purge amount of the filter screen is less than predetermined threshold, prompt to change filter screen.
Further, the Tip element is loudspeaker, buzzer or flasher.
The present invention also provides a kind of non-transient computer readable storage medium storing program for executing, the non-transient computer readable storage medium storing program for executing
Computer instruction is stored, the computer instruction is used to make the computer perform method as described above.
Technical solution of the present invention, have the following advantages that：
1. in the metering method and device of filter screen purge amount provided by the invention, by obtaining in current slot in air
Material concentration and the actual air volume by the filter screen, and actual air volume value according to theoretical air quantity with the filter screen described
Accumulative purge amount before current slot obtains, and avoids actual air volume value and produces error because filter screen pollutant is filled, enters
And the purge amount of filter screen can be accurately calculated, user can understand the service condition for accurately understanding current filter screen, while real
Obtaining for border airflow value need to only extract data according to the accumulative purge amount before theoretical airflow value and current slot, actual
It need not individually set the measurement apparatus of complexity to measure in, simplify measurement structure and operating procedure.
2. in the determination method and device of filter screen service life provided by the invention, as a result of the filter screen in the present invention
The metering method of purge amount, and then the purge amount of filter screen can be accurately calculated, user, which can understand, accurately understands filter at present
The life situations of net, while need not individually set the measurement apparatus of complexity to measure in practical application, simplify measurement knot
Structure and operating procedure.
3. in air cleaning facility provided by the invention, can accurately in computing device filter screen purge amount, Yong Huke
With the life situations of the accurate and visual current filter screen of understanding, timely filter screen is changed, while need not be single in practical application
The complicated measurement apparatus of only setting measures, for example, directly can by downloading related APP, by measure it is current when
Between accumulative purge amount before material concentration in air in section, theoretical air quantity and current slot, surveyed with reference to APP
Calculate, simplify measurement structure and operating procedure, reduce the cost of air cleaning facility.
4. in non-transient computer readable storage medium storing program for executing provided by the invention, as a result of filter screen purge amount in the present invention
Metering method and filter screen service life determination method, and then can accurately calculate the purge amount of filter screen, user can be clear
Chu accurately understands the life situations of current filter screen, while need not individually set the measurement apparatus of complexity to carry out in practical application
Measurement, simplifies measurement structure and operating procedure.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.In the accompanying drawings：
Fig. 1 is the schematic flow sheet of the metering method of filter screen purge amount in the embodiment of the present invention 1；
Fig. 2 is the corresponding relation figure that actual air volume adds up purge amount with pollutant in clarifier under high-grade air quantity；
Fig. 3 is the schematic flow sheet of the determination method of filter screen service life in the embodiment of the present invention 2；
Fig. 4 is the structural representation of the metering device of filter screen purge amount in the embodiment of the present invention 3；
Fig. 5 is the structural representation of the determining device of filter screen service life in the embodiment of the present invention 4；
Fig. 6 is the connection diagram of processor in air cleaning facility.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Embodiment 1
The present embodiment provides a kind of metering method of filter screen purge amount, such as can be used for the filter for calculating air cleaning facility
Net purge amount, as shown in figure 1, this method can include：
S11：Obtain the material concentration in current slot in air and the actual air volume by the filter screen, the reality
Border air quantity obtains according to accumulative purge amount of the theoretical air quantity with the filter screen before the current slot.
In the present embodiment, the material concentration in air can measure to obtain by material concentration sensor, and material is dense
Degree sensor is arranged on the air inlet before filter screen, to ensure the accuracy of measurement data.Theoretical air quantity can use existing skill
Conventional air measuring mode in art, such as by the way that wind speed inductor is arranged in the passage between air inlet and gas outlet,
Obtained by the product for the area for calculating wind speed and passage.Can also establish different air quantity gears in advance, for example, it is low-grade
Wind, middle-grade wind, high-grade wind, the theoretical air quantity of each grade of wind can be fixed.
Acquisition for actual air volume, for example, can by tabling look-up, the mode such as empirical equation, mathematical modeling obtains.Below
Exemplified by tabling look-up, the embodiment of the present invention is described in detail.
As shown in Fig. 2 particularly for a filter screen, by pre-establishing under different theories air quantity, actual wind
Amount adds up the database of the corresponding relation of purge amount with pollutant in clarifier, can be that generation chart as shown in Figure 2 is formed
Database, actual air volume is according to accumulative purge amount before the current slot of theoretical air quantity and the filter screen from described
Acquire, i.e., need not be in communication with the outside in database, the database carried by itself, you can according to theoretical air quantity and currently
Accumulative purge amount before period obtains actual air volume, and independence is stronger.
Database is established by the way that the chart under different theories air quantity is carried out into storage, such as by correlation graph, corresponding relation
Write in single-chip microcomputer, and then in current slot etc. data, by obtaining the theoretical air quantity in current slot, and obtain
Into corresponding clarifier, pollutant adds up purge amount so that i.e. extractable corresponding actual from chart, model or formula
Air quantity, because the corresponding relation can measure acquisition in advance in the lab, and then it can extract and obtain accurate actual air volume number
Corrected according to theoretical air quantity.
For how to generate the chart shown in Fig. 2, that is, obtain under different theories air quantity, actual air volume and dirt in clarifier
Contaminate the corresponding relation that thing adds up purge amount.It can be obtained by routine techniques in the lab, for example with GB/T1236
Conventional test device is tested same type of filter screen in laboratory, and test device mainly includes：Ducting system, pollution
3 parts of source generating means (wind quantity test does not have to this function) and measure device.Method of testing is：Typically using standard orifice plate or
The throttling arrangements such as calibrating nozzle connection differential manometer is measured, and the installation of specific test device and measuring and calculation method refer to GB/
T1236.Tested machine is put into the normal place of ducting system, and tested machine is adjusted to tested state, unlocking testing device
The blower fan of afterbody, the differential manometer reading of its tested clarifier upstream and downstream is observed, calculates its air quantity.Its calculation formula is：
Qv=Qm/ ρ
The ρ u* △ ρ of Qm=α * ξ * π * d2/4* √ 2
Qv：Air quantity
Qm：Mass flow
ρ：Atmospheric density
α：The discharge coefficient of flowmeter
ξ：The coefficient of expansion
d：Orifice plate or nozzle diameter
ρu：Tested machine upstream absolute pressure
△ρ：Upstream and the pressure difference in downstream
Specific computational algorithm above, and measurement how is realized, GB/T1236 is specifically referred to, will not be repeated here.
It can be obtained under a certain theoretical air quantity using aforesaid way, actual air volume and the accumulative purification of pollutant in clarifier
The corresponding relation of amount, and then the actual value of accurate actual air volume is obtained, further can be real by establishing under different theories air quantity
Border air quantity adds up the database of the corresponding relation of purge amount with pollutant in clarifier, obtains when needed by the filter screen
During actual air volume, only the parameter obtained need to be inputted.
S12：When material concentration and the actual air volume in air in the current slot obtain described current
Between section purge amount.In the present embodiment, the accumulative purge amount for the filter screen before the current slot, Ke Yizhi
Connect and obtained from storage device, for the accumulative purge amount of the filter screen used for the first time, initial value zero.Complete currently
Material concentration in period in air and after the acquisition of the actual air volume, you can by the filter screen for calculating current slot
Purge amount, the product of material concentration, actual air volume and current slot in air are the net of the filter screen of current slot
Change amount.
For current slot, it can be 1 minute, can also be 1 hour, one day etc., accuracy as needed needs
Depending on, current slot is shorter, and accuracy is higher.The period determined every time can be with identical, can also be different.
S13：The purge amount and the accumulative purge amount before the current slot of the current slot are summed
To obtain the accumulative purge amount of the current slot.
By obtaining the material concentration in current slot in air and the actual air volume by the filter screen, and it is actual
Airflow value obtains according to accumulative purge amount of the theoretical air quantity with the filter screen before the current slot, avoids actual wind
Value produces error because filter screen pollutant is filled, and then can accurately calculate the purge amount of filter screen, and user can understand standard
The service condition of the true current filter screen of understanding, while the acquisition of actual air volume value only need to be according to theoretical airflow value and current slot
Accumulative purge amount before extracts data, need not individually set the measurement apparatus of complexity to measure in practical application,
Simplify measurement structure and operating procedure.
Embodiment 2
As shown in figure 3, a kind of determination method of filter screen service life is present embodiments provided, including：
S21：The accumulative purge amount of the filter screen is obtained according to the metering method of the filter screen purge amount described in embodiment 1；
S22：Judge whether the difference between the theoretical purge amount of the filter screen and the accumulative purge amount of the filter screen is less than
Predetermined threshold, when the difference between the theoretical purge amount of filter screen and the accumulative purge amount of the filter screen is less than predetermined threshold, hold
Row step S23, when the difference between the theoretical purge amount of filter screen and the accumulative purge amount of the filter screen is not less than predetermined threshold,
Perform step S24.
In step S23：Assert that the service life of the filter screen has arrived the determination filter screen and reached service life.
In step 24：Without operation.
Wherein the theoretical purge amount of filter screen is what is surveyed in advance, such as the amount that a filter screen can purify is 50000mg, such as
Fruit has exceeded this amount, then the performance of filter screen can be reduced greatly, influences normal use, and predetermined threshold is for example, it can be set to be
1000mg；When the difference between the theoretical purge amount of the filter screen and the accumulative purge amount of the filter screen is less than predetermined threshold,
Such as when the difference between the theoretical purge amount of filter screen and the accumulative purge amount of the filter screen is less than 1000mg, then assert the filter
The service life of net has arrived the determination filter screen and has reached service life.
Using the above method, the purge amount of filter screen both can be accurately calculated, user, which can understand, accurately to be understood at present
The life situations of filter screen, while need not individually set the measurement apparatus of complexity to measure in practical application, simplify measurement
Structurally and operationally step.
Embodiment 3
As shown in figure 4, a kind of metering device of filter screen purge amount is present embodiments provided, including：
Concentration and air quantity acquiring unit 41, for obtaining material concentration in current slot in air and by described
The actual air volume of filter screen, the actual air volume are accumulative net before the current slot according to theoretical air quantity and the filter screen
Change measures, and specifically may refer to the description of step S11 in embodiment 1；
Purge amount acquiring unit 42, for the material concentration in air in the current slot and the actual wind
Amount obtains the purge amount of the current slot, specifically may refer to the description of step S12 in embodiment 1；
Sum unit 43, for the accumulative purification before the purge amount to the current slot and the current slot
Amount is summed, and specifically may refer to the description of step S13 in embodiment 1.
And then when obtaining current by concentration and air quantity acquiring unit of the metering device of filter screen purge amount in the present embodiment
Between the material concentration in section in air and the actual air volume by the filter screen, and described in being obtained by purge amount acquiring unit
The purge amount of current slot, and by sum unit to the purge amount of the current slot with before the current slot
Accumulative purge amount summed, due to actual air volume value according to theoretical air quantity and the filter screen before the current slot
Accumulative purge amount obtain, avoid actual air volume value and produce error because filter screen pollutant is filled, and then can accurately count
The purge amount of filter screen is calculated, user can understand the service condition for accurately understanding current filter screen.
Further, the metering device of the filter screen purge amount also includes Database unit, for establishing in difference
Under theoretical air quantity, actual air volume adds up the database of the corresponding relation of purge amount, the actual air volume with pollutant in clarifier
Acquired according to theoretical air quantity with the filter screen in the accumulative purge amount before the current slot out of described database,
And then the metering device of filter screen purge amount need not be in communication with the outside, the database carried by itself, you can according to theoretical air quantity
Actual air volume is obtained with the accumulative purge amount before current slot, the independence of device is stronger.It is understood that can also
It is to get actual air volume from remote server by way of remotely connecting.
Embodiment 4
As shown in figure 5, the present embodiment provides a kind of determining device of filter screen service life, including：
The metering device 91 of filter screen purge amount, such as can be the metering device of the filter screen purge amount described in embodiment 3；
Judging unit 92, for judging the difference between the theoretical purge amount of the filter screen and the accumulative purge amount of the filter screen
Whether value is less than predetermined threshold；
Computing unit 93, for when the difference between the theoretical purge amount of the filter screen and the accumulative purge amount of the filter screen
During less than predetermined threshold, determine that the filter screen reaches service life.
When the difference between the theoretical purge amount of the filter screen and the accumulative purge amount of the filter screen is less than predetermined threshold,
Such as when the difference between the theoretical purge amount of filter screen and the accumulative purge amount of the filter screen is less than 1000mg, then assert the filter
The service life of net has arrived the determination filter screen and has reached service life.
Using the above method, the purge amount of filter screen both can be accurately calculated, user, which can understand, accurately to be understood at present
The life situations of filter screen, while need not individually set the measurement apparatus of complexity to measure in practical application, simplify measurement
Structurally and operationally step.
Embodiment 5
Referring to Fig. 6, the present embodiment provides a kind of air cleaning facility, including equipment body, and the air cleaning facility is also
Including being arranged on the equipment body：
Material concentration sensor 501, for obtaining the material concentration in current slot in air；
Theoretical air quantity acquisition device 504, for obtaining the filter screen in current slot by the air cleaning facility
Theoretical air quantity.Wherein, theoretical air quantity acquisition device can be gear meter, wherein the different stalls of the gear meter correspond to different wind
Amount, for example, corresponding 600 cubic metres per hour, 400 cubic metres per hour etc..It can be air flow sensor, be arranged on equipment body
Air inlet, for obtaining the theoretical air quantity in current slot.
Memory 503, store instruction；
Processor 502, for according to the theoretical air quantity in current slot and filter screen before the current slot
Accumulative purge amount is obtained by the actual air volume of the filter screen in current slot, according in air in the current slot
Material concentration and the actual air volume obtain the purge amount of the current slot, and to the purge amount of the current slot with
Accumulative purge amount before the current slot is summed to obtain the accumulative purge amount of the current slot.
Wherein memory 503 can be used for storage software program and module, and processor is stored in memory by operation
Software program and module, so as to perform the various function application of electronic equipment and data processing.Memory can mainly include
Storing program area and storage data field, wherein, storing program area can storage program area, the application journey needed at least one function
Sequence (such as sound-playing function, image player function etc.) etc.；Storage data field can store to be created according to using for electronic equipment
Data (such as voice data, phone directory etc.) built etc..In addition, memory can include high-speed random access memory, may be used also
With including nonvolatile memory, for example, at least a disk memory, flush memory device or other volatile solid-states
Part.
Processor 502 is the control centre of electronic equipment, utilizes each of various interfaces and the whole electronic equipment of connection
Individual part, by running or performing the software program and/or module that are stored in memory, and call and be stored in memory
Data, perform the various functions and processing data of electronic equipment.Optionally, processor may include that one or more processing are single
Member；Preferably, processor can integrate application processor and modem processor, wherein, application processor mainly handles operation
System, user interface and application program etc., modem processor mainly handles radio communication.It is understood that above-mentioned tune
Demodulation processor processed can not also be integrated into processor.
Using above-mentioned air cleaning facility, both can accurately in computing device filter screen purge amount, user can be accurate
The life situations of current filter screen are got information about, timely filter screen is changed, while need not individually be set in practical application
The measurement apparatus for putting complexity measures, and simplifies measurement structure and operating procedure, reduces the cost of air cleaning facility.
Preferably, the material concentration sensor is arranged on the air inlet of the equipment body, and then can ensure to measure
Accuracy.
Preferably, the air flow sensor is arranged on the air inlet of the equipment body, and then can measure stable wind
Amount, ensure the accuracy subsequently calculated.
Preferably, the air cleaning facility in the present embodiment can also include display unit, be summed for showing
The purge amount arrived, and then clearly can be shown the filtering situation and life situations of filter screen, improve Consumer's Experience.
Preferably, the air cleaning facility can also include Tip element, for when the theoretical purge amount of the filter screen
When difference between the accumulative purge amount of the filter screen is less than predetermined threshold, prompt to change filter screen, the Tip element is to raise
Sound device, buzzer or flasher, and then may remind the user that and timely change filter screen, the experience of user is higher.
In the variant embodiment of the present invention, the air cleaning facility also includes information transmitting unit, for by institute
The accumulative purge amount data for stating the current slot that processor sums to obtain are exported to mobile device.And then can remotely it see
See, the filtering situation and life situations of filter screen are obtained using the display screen of mobile device, such as mobile phone, flat board, can also be utilized
The vibration of mobile device, loudspeaker remind user timely to change filter screen, so as to omit the aobvious of air cleaning facility setting
Show unit and Tip element, save the cost of air cleaning facility.
It is to lead to it will be understood by those skilled in the art that realizing all or part of flow in above-described embodiment method
Computer program is crossed to instruct the hardware of correlation to complete, described program can be stored in a computer read/write memory medium
In, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic
Dish, CD, read-only memory (ROM) or random access memory (RAM) etc..
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (14)
- A kind of 1. metering method of filter screen purge amount, it is characterised in that including：Obtain the material concentration in current slot in air and the actual air volume by the filter screen, the actual air volume root Obtained according to accumulative purge amount of the theoretical air quantity with the filter screen before the current slot；Material concentration and the actual air volume in air in the current slot obtain the net of the current slot Change amount；The purge amount and the accumulative purge amount before the current slot of the current slot are summed to obtain State the accumulative purge amount of current slot.
- 2. the metering method of filter screen purge amount according to claim 1, it is characterised in that including：Establish under different theories air quantity, actual air volume adds up the data of the corresponding relation of purge amount with pollutant in clarifier Storehouse, the actual air volume is according to theoretical air quantity and accumulative purge amount of the filter screen before the current slot from the number According to being acquired in storehouse.
- A kind of 3. determination method of filter screen service life, it is characterised in that including：The metering method of filter screen purge amount according to claim 1 or 2 obtains the accumulative purge amount of the filter screen；Judge whether the difference between the theoretical purge amount of the filter screen and the accumulative purge amount of the filter screen is less than predetermined threshold；When the difference between the theoretical purge amount of the filter screen and the accumulative purge amount of the filter screen is less than predetermined threshold, it is determined that The filter screen reaches service life.
- A kind of 4. metering device of filter screen purge amount, it is characterised in that including：Concentration and air quantity acquiring unit, for obtaining material concentration in current slot in air and by the filter screen Actual air volume, the actual air volume obtain according to accumulative purge amount of the theoretical air quantity with the filter screen before the current slot Arrive；Purge amount acquiring unit, obtained for the material concentration in air in the current slot and the actual air volume The purge amount of the current slot；Sum unit, carried out for the accumulative purge amount before the purge amount to the current slot and the current slot Sum to obtain the accumulative purge amount of the current slot.
- 5. the metering device of filter screen purge amount according to claim 4, it is characterised in that also include：Database unit, for establishing under different theories air quantity, actual air volume and the accumulative purification of pollutant in clarifier The database of the corresponding relation of amount, the actual air volume is according to theoretical air quantity and the filter screen before the current slot Accumulative purge amount acquires out of described database.
- A kind of 6. determining device of filter screen service life, it is characterised in that including：The metering device of filter screen purge amount according to claim 4 or 5, for obtaining the accumulative purge amount of the filter screen；Judging unit, for whether judging the difference between the theoretical purge amount of the filter screen and the accumulative purge amount of the filter screen Less than predetermined threshold；Computing unit, for being less than in advance when the difference between the theoretical purge amount of the filter screen and the accumulative purge amount of the filter screen When determining threshold value, determine that the filter screen reaches service life.
- 7. a kind of air cleaning facility, including：Material concentration sensor, for obtaining the material concentration in current slot in air；Theoretical air quantity acquisition device, for obtaining the theoretical wind of the filter screen in current slot by the air cleaning facility Amount；Processor, for being obtained according to accumulative purge amount of the theoretical air quantity with the filter screen before the current slot By the actual air volume of the filter screen in current slot, material concentration in air in the current slot and described Actual air volume obtains the purge amount of the current slot, and the purge amount to the current slot and the current slot Accumulative purge amount before is summed to obtain the accumulative purge amount of the current slot.
- 8. air cleaning facility according to claim 7, it is characterised in that the theoretical air quantity acquisition device is gear Meter, wherein the different stalls of the gear meter correspond to different air quantity.
- 9. air cleaning facility according to claim 7, it is characterised in that the theoretical air quantity acquisition device is that air quantity passes Sensor.
- 10. air cleaning facility according to claim 7, it is characterised in that the air cleaning facility also includes information Transmitting element, the accumulative purge amount data of the current slot for summing to obtain the processor are exported.
- 11. air cleaning facility according to claim 7, it is characterised in that the air cleaning facility also includes display Unit, the purge amount obtained for showing summation.
- 12. air cleaning facility according to claim 7, it is characterised in that the air cleaning facility also includes prompting Unit, for being less than predetermined threshold when the difference between the theoretical purge amount of the filter screen and the accumulative purge amount of the filter screen When, prompt to change filter screen.
- 13. air cleaning facility according to claim 12, it is characterised in that the Tip element is loudspeaker, buzzing Device or flasher.
- 14. a kind of non-transient computer readable storage medium storing program for executing, the non-transient computer readable storage medium storing program for executing storage computer refers to Order, it is characterised in that the computer instruction is used to make the side any one of the computer perform claim requirement 1 to 3 Method.
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