CN113566382A - Novel filter screen service life assessment method - Google Patents
Novel filter screen service life assessment method Download PDFInfo
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- CN113566382A CN113566382A CN202110791593.8A CN202110791593A CN113566382A CN 113566382 A CN113566382 A CN 113566382A CN 202110791593 A CN202110791593 A CN 202110791593A CN 113566382 A CN113566382 A CN 113566382A
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- China
- Prior art keywords
- filter screen
- fresh air
- air ventilator
- assessment method
- steps
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/39—Monitoring filter performance
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/64—Airborne particle content
Abstract
The invention discloses a novel filter screen service life assessment method, which comprises the following steps: the invention relates to a novel method for measuring and calculating the dust-containing efficiency by measuring and calculating the control variable between a filter screen used for a period of time and a new filter screen, which is used for checking the service life of the filter screen at a place and is convenient for a user to use.
Description
Technical Field
The invention relates to the technical field of chemical materials, in particular to a novel filter screen service life assessment method.
Background
The new fan is an effectual air purification equipment, can make the room air produce the circulation, on the one hand outdoor dirty air discharge, on the other hand is outdoor fresh air through disinfecting, after measures such as disinfection, filtration, input indoor again, let in the room all the time be fresh clean air, fan application new trend convection current patent technique, through independently supplying air and induced air, make the room air realize the convection current, thereby carry out the room air replacement furthest, the built-in multi-functional clean system of new fan guarantees to get into indoor air clean and healthy.
The filter screen of new fan uses its surface easily to be infected with too much dust particle after a period for the filter effect variation of filter screen, be infected with too much dust particle on the filter screen of new fan after, influence the ventilation effect of new fan, and the difficult life who knows the filter screen of user, often unable timely change filter screen, influence the use of new fan, and often only mark the biggest holding capacity of filter screen after the filter screen production now, and do not mark the life of new filter screen under new fan conventional environment, be not convenient for user's use.
Disclosure of Invention
The present invention is directed to a novel method for evaluating the service life of a filter screen, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a novel filter screen service life assessment method comprises the following steps: wind volume appearance, differential pressure appearance, fresh air ventilator, two, new filter screen and time delay switch of dust concentration detector include:
firstly, testing personnel detect the environmental pressure difference through a pressure difference meter, recording the use time of the fresh air ventilator as T1 after the fresh air ventilator is normally used for a period of time, and closing the fresh air ventilator;
secondly, mounting dust concentration detectors on two sides of a filter screen of the fresh air ventilator, mounting an air flow meter at an air outlet end of the fresh air ventilator, then opening the fresh air ventilator, and respectively setting the test time granularity of the two dust concentration detectors and the air flow meter to be one minute through a delay switch;
step three, after the test is finished, respectively recording the test data of the two dust concentration detectors and the test data of the air gauge as Q1, Q2 and C1;
step four, the tester replaces the filter screen of the fresh air ventilator with a brand new filter screen and repeats the data of the step two and the step three and records the data as Q3, Q4 and C2;
step five, the tester passes the formula:
Z＝(Qa-Qb) X CxT and η ═ Za÷Zb
The dust holding efficiency of the filter screen can be calculated;
step six, the tester substitutes the total dust holding amount n marked by the fresh air ventilator into a formula
n＝(Qa-Qb)×C×T×η
T, namely the service life of the new filter screen can be calculated.
As a preferred technical scheme of the invention, a plurality of different wind speed gears of the fresh air ventilator can be adjusted, the steps are repeated, and an average value is taken after T is measured, so that the error is reduced.
As a preferred technical scheme of the invention, the position of the detection end of the air volume meter is adjusted to respectively select three different positions of the air outlet end of the fresh air ventilator, the steps are repeated, and after T is measured, an average value is taken to reduce errors.
As a preferable technical scheme of the invention, the time delay switches are respectively set to be one minute, three minutes and five minutes, the steps are repeated, and an average value is taken after T is measured, so that the error is reduced.
As a preferred technical scheme of the invention, the older fresh air ventilator is replaced, the steps are repeated, and an average value is taken after T is measured, so that the error is reduced.
As a preferred technical scheme of the invention, the steps are repeated after the environment with different pressure differences is replaced and recorded by the pressure difference meter, and data comparison and recording are carried out after T is measured.
As a preferred technical scheme of the invention, articles containing smoke dust particle gas, such as mosquito-repellent incense and the like, are ignited at a test position, the steps are repeated, and data comparison and recording are carried out after T is measured.
Compared with the prior art, the invention has the beneficial effects that:
(1) the dust-containing efficiency is measured and calculated by measuring and calculating the control variable method between the filter screen used for a period of time and the new filter screen, so that the service life of the filter screen at the checking and calculating position is prolonged, the use by a user is facilitated, the operation steps are simple, the problem that the filter screen cannot be replaced in time frequently due to the fact that the service life of the filter screen is not easy to know by a user is solved, and the use experience of the user is improved.
(2) The evaluation method is used for measuring and calculating each dust holding quantity parameter by a control variable method, and after the dust holding efficiency of the filter screen is calculated, the service life of a new filter screen can be calculated, so that the use of a user is facilitated, and the check calculation is carried out on a single variable by the control variable method under different environments, so that the error is reduced.
Detailed Description
The technical scheme of the invention is as follows:
the invention provides a novel filter screen service life assessment method, which comprises the following steps: wind volume appearance, differential pressure appearance, fresh air ventilator, two, new filter screen and time delay switch of dust concentration detector include:
firstly, testing personnel detect the environmental pressure difference through a pressure difference meter, recording the use time of the fresh air ventilator as T1 after the fresh air ventilator is normally used for a period of time, and closing the fresh air ventilator;
secondly, mounting dust concentration detectors on two sides of a filter screen of the fresh air ventilator, mounting an air flow meter at an air outlet end of the fresh air ventilator, then opening the fresh air ventilator, and respectively setting the test time granularity of the two dust concentration detectors and the air flow meter to be one minute through a delay switch;
step three, after the test is finished, respectively recording the test data of the two dust concentration detectors and the test data of the air gauge as Q1, Q2 and C1;
step four, the tester replaces the filter screen of the fresh air ventilator with a brand new filter screen and repeats the data of the step two and the step three and records the data as Q3, Q4 and C2;
step five, the tester passes the formula:
Z＝(Qa-Qb) X CxT and η ═ Za÷Zb
The dust holding efficiency of the filter screen can be calculated;
step six, the tester substitutes the total dust holding amount n marked by the fresh air ventilator into a formula
n＝(Qa-Qb)×C×T×η
T, namely the service life of the new filter screen can be calculated.
Furthermore, a plurality of different wind speed gears of the fresh air ventilator can be adjusted, the steps are repeated, an average value is obtained after T is measured, errors are reduced, and the best wind power for using the filter screen of the fresh air ventilator can be obtained by measuring and calculating the service life of the filter screen of the fresh air ventilator under different wind power.
Furthermore, the position of the detection end of the air volume meter is adjusted to enable the detection end to respectively select three different positions of the air outlet end of the fresh air ventilator, the steps are repeated, an average value is obtained after T is measured, errors are reduced, and the situation that the detection end of the air volume meter is shielded to influence the measured data is avoided.
Further, the delay switches are set to be one minute, three minutes and five minutes respectively, the steps are repeated, and after T is measured, an average value is obtained, so that the error is reduced.
Further, the environment with different pressure differences is replaced, the steps are repeated after the pressure difference meter records, data comparison and recording are carried out after T is measured, and the optimal use pressure difference of the filter screen of the fresh air ventilator can be obtained by measuring and calculating the service life of the filter screen of the fresh air ventilator under different pressure differences.
Furthermore, the mosquito-repellent incense and other articles containing smoke dust particle gas are ignited at the test position, the steps are repeated, data comparison and recording are carried out after T is measured, and whether the service life of the filter screen is influenced or not in the smoke dust particle environment can be detected.
The invention provides a novel filter screen service life assessment method, wherein in the assessment process, a tester detects the environmental pressure difference through a pressure difference meter, the service time of a fresh air ventilator is recorded as T1 after the fresh air ventilator is normally used for a period of time, the fresh air ventilator is closed, dust concentration detectors are arranged on two sides of a filter screen of the fresh air ventilator, an air flow meter is arranged at an air outlet end of the fresh air ventilator, the fresh air ventilator is opened, the test time granularity of the two dust concentration detectors and the air flow meter is respectively set to be one minute through time delay switches, the test data of the two dust concentration detectors and the test data of the air flow meter are respectively recorded as Q1, Q2 and C1 after the test is finished, the tester replaces the filter screen of the fresh air ventilator with a brand-new filter screen and repeats the steps of the second data and the third data and records as Q3, Q4 and C2 data of the testerThe formula is shown as follows: and η ═ Za÷ZbCan calculate holding dirt efficiency tester of filter screen through with the total dust holding capacity n that fresh air ventilator marked into (Q) formula n ═a-Qb) Calculating T, namely the service life of a new filter screen, adjusting a plurality of different wind speed gears of the fresh air ventilator, repeating the steps, averaging after the T is measured, reducing errors, obtaining the best wind power for the filter screen of the fresh air ventilator by measuring the service life of the filter screen of the fresh air ventilator under different wind power, adjusting the position of the detection end of the air volume meter, respectively selecting three different positions of the air outlet end of the fresh air ventilator, repeating the steps, averaging after the T is measured, reducing errors, respectively setting time delay switches to be one minute, three minutes and five minutes, repeating the steps, averaging after the T is measured, reducing errors, replacing a more old fresh air ventilator, repeating the steps, averaging after the T is measured, reducing errors, replacing different environments with different pressure differences, recording by the pressure difference meter, and repeating the steps, comparing and recording the data after T is measured, igniting articles containing smoke dust particle gas, such as mosquito coils and the like, at the test position, repeating the steps, comparing and recording the data after T is measured, and detecting whether the service life of the filter screen is influenced or not in the environment with smoke dust particles.
In conclusion, the evaluation method calculates each dust holding quantity parameter by controlling the variable method, and can calculate the service life of a new filter screen after calculating the dust holding efficiency of the filter screen, so that the filter screen is convenient for users to use, and the error is reduced by checking a single variable by controlling the variable method under different environments.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A novel filter screen life assessment method is characterized in that equipment is prepared as follows: wind volume appearance, differential pressure appearance, fresh air ventilator, two, new filter screen and time delay switch of dust concentration detector include:
firstly, testing personnel detect the environmental pressure difference through a pressure difference meter, recording the use time of the fresh air ventilator as T1 after the fresh air ventilator is normally used for a period of time, and closing the fresh air ventilator;
secondly, mounting dust concentration detectors on two sides of a filter screen of the fresh air ventilator, mounting an air flow meter at an air outlet end of the fresh air ventilator, then opening the fresh air ventilator, and respectively setting the test time granularity of the two dust concentration detectors and the air flow meter to be one minute through a delay switch;
step three, after the test is finished, respectively recording the test data of the two dust concentration detectors and the test data of the air gauge as Q1, Q2 and C1;
step four, the tester replaces the filter screen of the fresh air ventilator with a brand new filter screen and repeats the data of the step two and the step three and records the data as Q3, Q4 and C2;
step five, the tester passes the formula:
Z＝(Qa-Qb) X CxT and η ═ Za÷Zb
The dust holding efficiency of the filter screen can be calculated;
step six, the tester substitutes the total dust holding amount n marked by the fresh air ventilator into a formula
n＝(Qa-Qb)×C×T×η
T, namely the service life of the new filter screen can be calculated.
2. The novel filter screen life assessment method according to claim 1, wherein: a plurality of different wind speed gears of the fresh air ventilator can be adjusted, the steps are repeated, and after T is measured, an average value is taken, so that the error is reduced.
3. The novel filter screen life assessment method according to claim 1, wherein: and adjusting the position of the detection end of the air volume meter to enable the detection end to respectively select three different positions of the air outlet end of the fresh air ventilator, repeating the steps, and taking an average value after T is measured to reduce errors.
4. The novel filter screen life assessment method according to claim 1, wherein: and (4) setting the time delay switches to be one minute, three minutes and five minutes respectively, repeating the steps, and taking an average value after T is measured to reduce errors.
5. The novel filter screen life assessment method according to claim 1, wherein: and replacing the old fresh air ventilator, repeating the steps, and taking an average value after T is measured to reduce errors.
6. The novel filter screen life assessment method according to claim 1, wherein: and (3) repeating the steps after the environment with different pressure differences is changed and recorded by the pressure difference meter, and comparing and recording the data after T is measured.
7. The novel filter screen life assessment method according to claim 1, wherein: igniting articles containing smoke dust particle gas such as mosquito-repellent incense and the like at the testing position, repeating the steps, and comparing and recording data after T is measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110791593.8A CN113566382A (en) | 2021-07-13 | 2021-07-13 | Novel filter screen service life assessment method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110791593.8A CN113566382A (en) | 2021-07-13 | 2021-07-13 | Novel filter screen service life assessment method |
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| CN113566382A true CN113566382A (en) | 2021-10-29 |
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Citations (7)
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| CN105363297A (en) * | 2015-11-25 | 2016-03-02 | 佛山市城市森林净化科技有限公司 | Method for judging life of air purifier filter screen |
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| CN109282459A (en) * | 2017-07-19 | 2019-01-29 | 侍家（北京）科技有限公司 | A kind of new blower self cleaning method |
| CN110314458A (en) * | 2019-07-11 | 2019-10-11 | 江苏中科睿赛污染控制工程有限公司 | A kind of the screen replacing system for prompting and its method of air cleaning facility |
| CN111780345A (en) * | 2019-04-04 | 2020-10-16 | 广东美的环境电器制造有限公司 | Method and device for calculating service life of filter screen and purifying equipment |
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2021
- 2021-07-13 CN CN202110791593.8A patent/CN113566382A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105363297A (en) * | 2015-11-25 | 2016-03-02 | 佛山市城市森林净化科技有限公司 | Method for judging life of air purifier filter screen |
| CN106958922A (en) * | 2017-04-12 | 2017-07-18 | 浙江地球村环保科技有限公司 | A kind of method and system for detecting the new blower fan screen net life-span |
| CN109282459A (en) * | 2017-07-19 | 2019-01-29 | 侍家（北京）科技有限公司 | A kind of new blower self cleaning method |
| CN108211556A (en) * | 2017-12-25 | 2018-06-29 | 加丁（天津）科技有限公司 | Strainer life forecast method and air cleaning unit based on dust containing capacity |
| CN108800433A (en) * | 2018-04-24 | 2018-11-13 | 青岛朗兹环保科技有限公司 | New blower fan screen net life detecting method |
| CN111780345A (en) * | 2019-04-04 | 2020-10-16 | 广东美的环境电器制造有限公司 | Method and device for calculating service life of filter screen and purifying equipment |
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Application publication date: 20211029 |
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