阅读说明：本技术 一种新型的滤网寿命评估方法 (Novel filter screen service life assessment method ) 是由 伍焕斌 于 2021-07-13 设计创作，主要内容包括：本发明公开了一种新型的滤网寿命评估方法,设备准备为：风量仪、压差仪、新风换气机、粉尘浓度检测仪两台、新滤网和延时开关,本发明一种新型的通过测算使用一段时间的滤网和新滤网之间的控制变量法测算含尘效率,从而验算处滤网的使用寿命,便于用户的使用,操作步骤简单,且解决了使用人员不易知晓滤网的使用寿命,往往无法及时更换滤网的问题,提高了用户的使用体验,可调节新风换气机的多个不同风速档位,进行评估步骤后,即可得到新风换气机滤网的最佳使用风力,通过在测试处点燃蚊香等含有烟尘颗粒气体的物品,进行评估步骤后,可检测有烟尘颗粒环境下滤网使用寿命是否受到影响。(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.)

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＝(Q_a-Q_b) X CxT and η ═ Z_a÷Z_b

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＝(Q_a-Q_b)×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.

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＝(Q_a-Q_b) X CxT and η ═ Z_a÷Z_b

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＝(Q_a-Q_b)×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＝(Q_a-Q_b) X CxT and η ═ Z_a÷Z_b

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＝(Q_a-Q_b)×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 ═ Z_a÷Z_bCan 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-Q_b) 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.