PL445409A1 - Method of testing dust filters, especially reusable dust filters for half-masks and masks - Google Patents

Method of testing dust filters, especially reusable dust filters for half-masks and masks

Info

Publication number
PL445409A1
PL445409A1 PL445409A PL44540923A PL445409A1 PL 445409 A1 PL445409 A1 PL 445409A1 PL 445409 A PL445409 A PL 445409A PL 44540923 A PL44540923 A PL 44540923A PL 445409 A1 PL445409 A1 PL 445409A1
Authority
PL
Poland
Prior art keywords
fan
measurement
masks
anemometer
air flow
Prior art date
Application number
PL445409A
Other languages
Polish (pl)
Inventor
Ryszard Bogucki
Przemysław Kędzierski
Original Assignee
Główny Instytut Górnictwa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Główny Instytut Górnictwa filed Critical Główny Instytut Górnictwa
Priority to PL445409A priority Critical patent/PL445409A1/en
Publication of PL445409A1 publication Critical patent/PL445409A1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
    • G01N15/082—Investigating permeability by forcing a fluid through a sample
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
    • G01N15/082—Investigating permeability by forcing a fluid through a sample
    • G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
    • G01N2015/084—Testing filters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Fluid Mechanics (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

Przedmiotem zgłoszenia jest sposób badania filtrów przeciwpyłowych, zwłaszcza badania stopnia zużycia filtrów przeciwpyłowych wielokrotnego użytku do półmasek i masek, który charakteryzuje się tym, że badany filtr (1) łączy się ze szczelnym układem pomiarowym, zawierającym co najmniej wentylator (3) i anemometr (5), po czym za pomocą zabudowanego w tym układzie wentylatora (3), wymusza się ruch powietrza, zasysając powietrze spoza układu pomiarowego przez filtr (1) i za pomocą anemometru (5), mierzy się przepływ powietrza przez badany filtr (1) i układ pomiarowy, przy czym wentylator (3) zasila się zasilaczem napięcia stałego z wyświetlaczem i płynną regulacją natężenia prądu [A] i napięcia [V], i za jego pomocą prowadzi się czynności badawczo-pomiarowe, polegające na tym, że ustawia się wartość napięcia i natężenia prądu zasilacza zasilającego wentylator, zapewniającą zadany przepływ powietrza w układzie pomiarowym oraz mierzy się natężenie prądu [A] i napięcie prądu [V] i wylicza się moc wentylatora (3), po czym uzyskane wyniki, tj. wartość przepływ powietrza w układzie pomiarowym oraz moc wentylatora (3) potrzebną do uzyskania założonego przepływu powietrza przez układ pomiarowy, w seriach pomiarowych symulujących ilość energii potrzebnej znormalizowanej wentylacji płuc podczas oddechu i w czasie wysiłku, szczególnie 30 l/min i 95 1/min, zbiera się, systematyzuje i poddaje analizie, znanymi metodami, i przy tym w opisywanym sposobie stosuje się wentylator (3) i anemometr (5) zabudowane szczelnie na szczelnej linii przesyłowej powietrza, i przy tym czynności badawczo-pomiarowe wykonuje się w układzie pomiarowym z linią przesyłową powietrza zlokalizowaną na osi wspólnej z wentylatorem (3) i anemometrem (5), tworząc tor pomiarowy, o takiej samej średnicy wewnętrznej, i przy tym powyższe czynności, prowadzi się dla filtrów (1) nowych i dla filtrów (1) o różnym czasie zużycia.The subject of the application is a method for testing dust filters, in particular testing the degree of wear of reusable dust filters for half-masks and masks, which is characterized by the fact that the tested filter (1) is connected to a tight measuring system containing at least a fan (3) and an anemometer (5). ), and then, using the fan (3) built into this system, air movement is forced by sucking air from outside the measuring system through the filter (1) and, using an anemometer (5), the air flow through the tested filter (1) and the system is measured measurement, where the fan (3) is powered by a DC power supply with a display and smooth regulation of current [A] and voltage [V], and is used to carry out research and measurement activities by setting the voltage value and current of the power supply supplying the fan, ensuring the set air flow in the measuring system, and the current [A] and current voltage [V] are measured and the fan power is calculated (3), and then the results are obtained, i.e. the value of air flow in the measuring system and the power of the fan (3) needed to obtain the assumed air flow through the measurement system, in measurement series simulating the amount of energy needed for standardized lung ventilation during breathing and during exercise, especially 30 l/min and 95 1/min, is collected, systematized and analyzed, known methods, and the described method uses a fan (3) and an anemometer (5) tightly installed on a tight air transmission line, and the research and measurement activities are performed in a measurement system with an air transmission line located on a common axis with the fan (3) and an anemometer (5), creating a measurement track with the same internal diameter, and the above activities are carried out for new filters (1) and for filters (1) with different wear times.

PL445409A 2023-06-29 2023-06-29 Method of testing dust filters, especially reusable dust filters for half-masks and masks PL445409A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL445409A PL445409A1 (en) 2023-06-29 2023-06-29 Method of testing dust filters, especially reusable dust filters for half-masks and masks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL445409A PL445409A1 (en) 2023-06-29 2023-06-29 Method of testing dust filters, especially reusable dust filters for half-masks and masks

Publications (1)

Publication Number Publication Date
PL445409A1 true PL445409A1 (en) 2024-01-03

Family

ID=89473626

Family Applications (1)

Application Number Title Priority Date Filing Date
PL445409A PL445409A1 (en) 2023-06-29 2023-06-29 Method of testing dust filters, especially reusable dust filters for half-masks and masks

Country Status (1)

Country Link
PL (1) PL445409A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL452399A1 (en) * 2025-06-18 2025-12-08 Główny Instytut Górnictwa - Państwowy Instytut Badawczy Method of testing dust filters, especially reusable dust filters for half-masks and full-face masks

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN208937471U (en) * 2018-09-03 2019-06-04 苏州市翔耀精密自动化设备有限公司 A kind of filter capability test device
CN111122407A (en) * 2018-10-31 2020-05-08 宁波方太厨具有限公司 Testing device and testing method for measuring filtering efficiency of air filtering material
US11215548B1 (en) * 2021-03-02 2022-01-04 Richard A. Brandt Method and apparatus for mask testing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN208937471U (en) * 2018-09-03 2019-06-04 苏州市翔耀精密自动化设备有限公司 A kind of filter capability test device
CN111122407A (en) * 2018-10-31 2020-05-08 宁波方太厨具有限公司 Testing device and testing method for measuring filtering efficiency of air filtering material
US11215548B1 (en) * 2021-03-02 2022-01-04 Richard A. Brandt Method and apparatus for mask testing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL452399A1 (en) * 2025-06-18 2025-12-08 Główny Instytut Górnictwa - Państwowy Instytut Badawczy Method of testing dust filters, especially reusable dust filters for half-masks and full-face masks

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