CN106642565A - Indirect implementation method for detecting and judging concentration of pollutants in indoor air of building - Google Patents
Indirect implementation method for detecting and judging concentration of pollutants in indoor air of building Download PDFInfo
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- CN106642565A CN106642565A CN201611146717.2A CN201611146717A CN106642565A CN 106642565 A CN106642565 A CN 106642565A CN 201611146717 A CN201611146717 A CN 201611146717A CN 106642565 A CN106642565 A CN 106642565A
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- indoor
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- 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
-
- 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
-
- 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
- F24F2110/20—Humidity
-
- 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
-
- 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
- F24F2110/65—Concentration of specific substances or contaminants
- F24F2110/70—Carbon dioxide
-
- 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
Abstract
The invention provides an indirect implementation method for detecting and judging the concentration of pollutants in indoor air of a building. The method comprises the step that by means of a series of characteristics and quantitative relations that by means of quantitative relations among dispersible total quantity, emission quantity and draft intensity of the pollutants, total quantity fixation of the pollutants in a room after interior finish is conducted and a person resides in the room serves as a basic assumed condition, after construction and decoration engineering are completed, one-time pollutant detection data and an attenuation rule thereof are utilized as calculation bases, by means of continuous detection on indoor temperature, humidity and carbon dioxide parameters, the total quantity of the pollutants obtained after construction is completed (including completion of decoration and furniture layout) is determined to be fixed, the release strength changes in a regular way, the indoor accumulation degree of the pollutants and indoor and outdoor ventilation degree are in a certain relation, and at the same time of monitoring other parameter changes in the room, indirect calculation on concentration changes of the pollutants (formaldehyde and VOC) in indoor air is achieved.
Description
Technical field
The present invention relates to a kind of detect the indirect implementation method for judging Indoor environment pollutants in air concentration
Background technology
Prior art detection indoor air pollutants concentration adopts two methods：One kind is to sample, send assay, separately
One kind is to use gas composition sensor.
Former approach is that the air sample gathered for some time point is analyzed, and the side of assay is sent in sampling
Method result accurately, authority, but that time point of sampling can only be detected, it is and relatively costly, need professional assay device and specially
Industry operating personnel, it is impossible to immediate feedback testing result, it is impossible to continue to monitor；
Later approach sensor life-time is limited, needs regular verification to safeguard, the maintenance and replacing to sensor is to pipe
Reason and cost all bring unfavorable.
So, above-mentioned two methods are difficult to meet the detection of IAQ guarantee in building and judge needs.
The content of the invention
It is an object of the invention to provide a kind of detect the indirect realization for judging Indoor environment pollutants in air concentration
Method, can realize to indoor pollutant (such as indirectly：Formaldehyde, VOC) concentration reckoning.
To solve the above problems, the present invention provides a kind of detection and judges the indirect of Indoor environment pollutants in air concentration
Implementation method, including：
Obtain indoor temperature, humidity and gas concentration lwevel；
Indoor dynamic air age τ is calculated according to the indoor carbon dioxide concentration；
According to the indoor temperature, humidity, the indoor pollutant concentration at a certain moment, the dynamic air age at moment meter
Calculate indoor pollutant release strength σ；
Indoor contamination build-up concentration η is calculated according to the indoor pollutant release strength σ and dynamic air age τ.
Further, in the above-mentioned methods, dynamic air age τ is according to equation below calculating：
τ=1.443t2(1),
Wherein, t2The time consumed away from equilibrium valve half is dropped to by gas concentration lwevel in following detection process.
The detection process is under the ventilation state similar to calculated indoor air pollutants concentration, and without personnel
Sojourn times, the process that the indoor gas concentration lwevel of record declines naturally.
Further, in the above-mentioned methods, the pollutant release strength σ is calculated according to equation below：
Wherein, T is temperature, degrees Celsius,For relative humidity, unit %, e for natural logrithm the truth of a matter, σ23For room
When inside using temperature be 23 DEG C, pollutant release strength of relative humidity when being 55%.
Further, in the above-mentioned methods, the σ23Calculated according to equation below：
Wherein, V for room interior space volume, t0.5For pollutant release strength half-life, t1It is computing interval from work
The time detected after the completion of journey, σ023Be 23 DEG C to be corrected to temperature, pollutant initial stage release of relative humidity when being 55% it is strong
Degree.
Further, in the above-mentioned methods, σ023Calculated according to equation below：
Wherein, σ0For the initial stage release strength of pollutant.
Further, in the above-mentioned methods, σ0Calculated according to equation below：
Wherein, η0For the pollutant levels detected after the completion of engineering；
τ is the dynamic air age after the completion of the engineering under testing conditions.
Further, in the above-mentioned methods, contamination build-up concentration η is calculated according to equation below：
Wherein：ηJustTo calculate the pollutant levels at initial stage；
The time that t is experienced when being from the calculating initial stage to calculating.
Compared with prior art, the present invention is closed using the quantity between the parameters such as pollutant release strength, dynamic air age
System, moves in the rear total amount of pollutant and is fixed as basic assumption condition with room interior decoration, using building after the completion of, including patcher
Disposable pollutant monitoring data and its attenuation law be used as basis after the completion of journey, by indoor temperature, humidity, dioxy
Change the lasting detection of carbon parameter, assert that the total amount of pollutant is fixed (after the completion of decoration and furniture installation) after the completion of building,
Release strength changes in certain rule, and pollutant accumulation degree indoors is with indoor and outdoor air circulation degree in certain relation etc.
A series of features and quantitative relationship, while monitoring that other specification changes in room, realize to indoor air pollutants
(such as：Formaldehyde, VOC) change in concentration indirect reckoning, the middle realization to air quality safeguards system indoors is dense to pollutant
The lasting judgement of degree, is that the regulation improvement of air quality automatically controls offer foundation, and the present invention speculates indoor using indirect method
Pollutants in air concentration can remove sampling analysis from, save the setting of gas composition sensor.
Description of the drawings
Fig. 1 is the indirect implementation method that the detection of one embodiment of the invention judges Indoor environment pollutants in air concentration
Schematic diagram.
Specific embodiment
It is understandable to enable the above objects, features and advantages of the present invention to become apparent from, it is below in conjunction with the accompanying drawings and concrete real
The present invention is further detailed explanation to apply mode.
As shown in figure 1, realizing that indoor air pollutants concentration is speculated according to following principle using indirect method：
1) it is indoor for the bedroom in household, living room, or for the room of the purposes such as office, teaching in public building
It is formaldehyde and VOC that reason causes the major pollutants species of room air pollution；
2) once after the completion of building, including after the completion of decorative engineering and furniture installation, the total amount of pollutant of formaldehyde and VOC is
It is substantially stationary (except it is a small amount of, brought into by other articles in short-term in addition to), this amount esox is exactly pollutant initial stage total amount, it etc.
In the accumulative residual quantity plus pollutant of later all burst sizes.Because the residual quantity of pollutant gradually decays, therefore
The change of its release strength σ is also that the trend for gradually decaying is presented, and is have certain rule governed；
3) there is certain association between pollutant release strength σ, contamination build-up concentration η and room dynamic air age τ
Relation；
4) according to above reason, after the formaldehyde, VOC concentration when some time point after the completion of room finish determines, with
Change in concentration afterwards can be obtained according to the dynamic air age of temperature, humidity and room room air in room to infer；
5) indoor temperature, humidity are detected by arranging sensor, and the monitoring in indoor dynamic air age can be by indoor two
The detection record result of carbonoxide change in concentration is obtained；
6) so, in bedroom, living room, office, classroom class room, can calculate that formaldehyde, VOC classes are dirty by indirect method
Dye thing concentration.The calculating can be realized by the field control equipment of automatic control system with embedded software.
The present invention provides a kind of indirect implementation method for detecting and judging Indoor environment pollutants in air concentration, including：
Step S1, obtains the initial stage release strength σ of indoor pollutant after the completion of engineering0；
Step S2, according to the indoor carbon dioxide concentration indoor dynamic air age τ is calculated；
Step S3, according to the initial stage release strength σ of the pollutant0Indoor pollution is calculated with indoor temperature, humidity
Thing release strength σ；
Step S4, according to the indoor pollutant release strength σ and dynamic air age τ indoor contamination build-up is calculated
Concentration η.
In one embodiment of the invention, dynamic air age τ calculates according to equation below：
τ=1.443t2(1),
Wherein, t2Gas concentration lwevel when starting for detection drops to the time that equilibrium valve half is consumed：If hJust
=800ppm, hBalance=400ppm, then gas concentration lwevel drops to the time required for 600ppm from 800ppm, is exactly t2.
Specifically, hJustGas concentration lwevel when starting for detection；
hBalanceFor gas concentration lwevel equilibrium valve：After detection is continued for some time, gas concentration lwevel is intended to balance, its
Fluctuation range is less than 5% i.e. it is believed that having reached balance, takes equilibrium valve h of the mean value as carbon dioxide of this whenBalance,
Same room with them, under same ventilation condition, dynamic air age τ is considered constant.
In one embodiment of the invention, the pollutant release strength σ is calculated according to equation below：
Wherein, T is temperature, degrees Celsius, when such as 28 DEG C, T=28；For relative humidity, unit %, when such as 55%,E for natural logrithm the truth of a matter, e=2.71828182845904523；σ23Temperature is 23 DEG C, phase when using for interior
Pollutant release strength when to humidity being 55%.
In one embodiment of the invention, the σ23Calculated according to equation below：
Wherein, V for room interior space volume, t0.5For the pollutant release strength half-life, obtained by testing, no
Same pollutant (formaldehyde, VOC or other pollutants), different pollutant carriers, its t0.5It is different, t is computing interval from work
Detection after the completion of journey (obtains σ023When) time, its unit should be with pollutant release strength half-life t0.5Unanimously, σ023For correction
To temperature be 23 DEG C, relative humidity be 55% when pollutant initial stage release strength.
In one embodiment of the invention, σ023Calculated according to equation below：
Wherein, σ0For the initial stage release strength of pollutant, initial stage release strength σ0It is the detected value (room from after the completion of engineering
Detect under sealing condition.If more accurate, it should be furniture in place after detected value) calculate pollutant initial stage release it is strong
Degree.
In one embodiment of the invention, σ0Calculated according to equation below：
Wherein, age of air when τ is detection, such as above formula (1) calculate gained；
η0For the pollutant levels (formaldehyde, VOC or other) detected after the completion of engineering；
τ is the dynamic air age after the completion of the engineering under testing conditions.
In one embodiment of the invention, contamination build-up concentration η is calculated according to equation below：
Wherein：ηJustTo calculate the pollutant levels at initial stage, that is, the result of a front calculating process；
The time that t is experienced when being from the calculating initial stage to calculating；
τ is dynamic air age, and such as above formula (1) calculates gained, is just needed again in the case where ventilation state changes
Parameter τ in adjustment formula；
σ is pollutant release strength, and such as above formula (2) calculates gained；
E for natural logrithm the truth of a matter, e=2.71828182845904523；
In sum, the present invention utilizes the quantitative relation between the parameters such as pollutant release strength, dynamic air age, with room
Between interior decoration move in the rear total amount of pollutant and be fixed as basic assumption condition, borrow disposable pollution quality testing after the completion of fitting-out work
Data and its attenuation law are surveyed as basis, by indoor temperature, humidity, carbon dioxide parameter lasting detection, profit
The total amount of pollutant is fixed (after the completion of decoration and furniture installation) after the completion of with building, and release strength becomes in certain rule
Change, pollutant accumulation degree indoors is closed with indoor and outdoor air circulation degree in a series of features such as certain relations and quantitatively
System, while monitoring that other specification changes in room, realizes to indoor air pollutants (formaldehyde, VOC) change in concentration
Calculate indirectly, be air quality to lasting judgement of the middle realization of air quality safeguards system indoors to pollutant levels
Regulation improve offer foundation be provided, the present invention speculates that indoor air pollutants concentration can remove from and adopts using indirect method
Sample analysis, the setting for saving gas composition sensor.
Each embodiment is described by the way of progressive in this specification, and what each embodiment was stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
Professional further appreciates that, with reference to the unit of each example of the embodiments described herein description
And algorithm steps, can with electronic hardware, computer software or the two be implemented in combination in, in order to clearly demonstrate hardware and
The interchangeability of software, according to function has generally described the composition and step of each example in the above description.These
Function is performed with hardware or software mode actually, depending on the application-specific and design constraint of technical scheme.Specialty
Technical staff can use different methods to realize described function to each specific application, but this realization should not
Think beyond the scope of this invention.
Obviously, those skilled in the art can carry out the spirit of various changes and modification without deviating from the present invention to invention
And scope.So, if these modifications of the present invention and modification belong to the claims in the present invention and its equivalent technologies scope it
Interior, then the present invention is also intended to including including these changes and modification.
Claims (8)
1. it is a kind of to detect the indirect implementation method for judging Indoor environment pollutants in air concentration, it is characterised in that to include：
Obtain indoor temperature, humidity and gas concentration lwevel；
Indoor dynamic air age τ is calculated according to the indoor carbon dioxide concentration；
Indoor pollutant release strength σ is calculated according to the indoor temperature, humidity；
Indoor contamination build-up concentration η is calculated according to the indoor pollutant release strength σ and dynamic air age τ.
2. detection as claimed in claim 1 judges the indirect implementation method of Indoor environment pollutants in air concentration, and it is special
Levy and be, dynamic air age τ calculates according to equation below：
τ=1.443t2(1),
Wherein, t2The time consumed away from equilibrium valve half is dropped to by gas concentration lwevel in following detection process.
The detection process is under the ventilation state similar to calculated indoor air pollutants concentration, and to stay without personnel
When, the process that the indoor gas concentration lwevel of record declines naturally.
3. detection as claimed in claim 2 judges the indirect implementation method of Indoor environment pollutants in air concentration, and it is special
Levy and be, the pollutant release strength σ is calculated according to equation below：
Wherein, T is temperature, degrees Celsius,For relative humidity, 100% is calculated as the truth of a matter that 1, e is natural logrithm, σ23For room
When inside using temperature be 23 DEG C, pollutant release strength of relative humidity when being 55%.
4. detection as claimed in claim 3 judges the indirect implementation method of Indoor environment pollutants in air concentration, and it is special
Levy and be, the σ23Calculated according to equation below：
Wherein, V for room interior space volume, t0.5For pollutant release strength half-life, t1It is complete from engineering for computing interval
Into the time of rear detection, σ023Be 23 DEG C to be corrected to temperature, pollutant initial stage release strength of relative humidity when being 55%.
5. detection as claimed in claim 4 judges the indirect implementation method of Indoor environment pollutants in air concentration, and it is special
Levy and be, formulaObtained according to following more generally applicable formula：
Wherein, τσFor pollutant release strength damping time constant.
6. detection as claimed in claim 5 judges the indirect implementation method of Indoor environment pollutants in air concentration, and it is special
Levy and be, σ023Calculated according to equation below：
Wherein, σ0For the initial stage release strength of pollutant.
7. detection as claimed in claim 6 judges the indirect implementation method of Indoor environment pollutants in air concentration, and it is special
Levy and be, σ0Calculated according to equation below：
Wherein, η0For the pollutant levels detected after the completion of engineering；
τ is the dynamic air age after the completion of the engineering under testing conditions.
8. detection as claimed in claim 7 judges the indirect implementation method of Indoor environment pollutants in air concentration, and it is special
Levy and be, contamination build-up concentration η is calculated according to equation below：
Wherein, ηJustTo calculate the pollutant levels at initial stage；
The time that t is experienced when being from the initial stage to calculating.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108816799A (en) * | 2018-06-14 | 2018-11-16 | 江苏金坛长荡湖新能源科技有限公司 | A kind of automotive upholstery quality control method and monitoring system |
| CN109540821A (en) * | 2018-12-27 | 2019-03-29 | 深圳广田集团股份有限公司 | A method of prediction ornament materials Form aldehyde release concentration under condition of different temperatures |
| CN110579570A (en) * | 2019-09-27 | 2019-12-17 | 安徽江航爱唯科环境科技有限公司 | Indoor formaldehyde pollution level dynamic monitoring method, device and system |
| CN111859595A (en) * | 2019-04-16 | 2020-10-30 | 左益玮 | Indoor decoration formaldehyde concentration and attenuation prediction method based on multi-component multi-parameter dynamic model |
| CN112557586A (en) * | 2019-09-25 | 2021-03-26 | 上海迪勤智能科技有限公司 | Method for testing pollutant emission rate of interior wall coating |
| CN112856764A (en) * | 2020-03-30 | 2021-05-28 | 潘利娟 | Humidity control system for improving user experience |
| CN113405249A (en) * | 2021-06-18 | 2021-09-17 | 海尔(深圳)研发有限责任公司 | Control method and device for air conditioner, air conditioner and storage medium |
| US20220275966A1 (en) * | 2020-11-04 | 2022-09-01 | Mann+Hummel Life Sciences & Environment Holding Singapore Pte. Ltd. | Method and system for airborne viral infection risk and air quality analysis from networked air quality sensors |
| CN111859595B (en) * | 2019-04-16 | 2024-04-26 | 左益玮 | Indoor decoration formaldehyde concentration and attenuation prediction method based on multicomponent multiparameter dynamic model |
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| CN112856764A (en) * | 2020-03-30 | 2021-05-28 | 潘利娟 | Humidity control system for improving user experience |
| US20220275966A1 (en) * | 2020-11-04 | 2022-09-01 | Mann+Hummel Life Sciences & Environment Holding Singapore Pte. Ltd. | Method and system for airborne viral infection risk and air quality analysis from networked air quality sensors |
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| CN113405249A (en) * | 2021-06-18 | 2021-09-17 | 海尔(深圳)研发有限责任公司 | Control method and device for air conditioner, air conditioner and storage medium |
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