WO2001080952A1 - Volumensteuerung für gebläsefiltergeräte - Google Patents
Volumensteuerung für gebläsefiltergeräte Download PDFInfo
- Publication number
- WO2001080952A1 WO2001080952A1 PCT/DE2001/001456 DE0101456W WO0180952A1 WO 2001080952 A1 WO2001080952 A1 WO 2001080952A1 DE 0101456 W DE0101456 W DE 0101456W WO 0180952 A1 WO0180952 A1 WO 0180952A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- measuring points
- fan
- behind
- volume control
- measuring
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/006—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort with pumps for forced ventilation
Definitions
- the invention relates to a volume control for blower filter devices, which is particularly suitable for a hood connection for ventilation.
- Blower filter devices according to the known prior art have the problem that the flow rate of the air that is supplied to the hood varies depending on the degree of clogging of the filter. If the filter is new and clean, more air will pass through the filter than required by the standards in a given individual case. Similar problems arise when using different filters.
- Another problem is that the air volume flow is influenced by the type of breathing connection.
- EP 0352938 A2 proposes to measure the difference zdrack between a measuring point in front of and a measuring point behind the fan wheel of the fan and to use this signal to control the fan speed.
- EP 0 62 10 56 AI provides for the back pressure to be measured at the outlet of the blower filter device.
- the dynamic pressure is generated by the flow resistance of the hood and can also serve as a measure of the air volume flow.
- another sensor in the form of a thermistor in a secondary duct, which is to monitor the specified limit values for the air volume flow and to trigger an alarm signal when the temperature falls below.
- FI 80606 From FI 80606 an arrangement is known which uses the fan motor as a detector, so that the electrical control circuit measures the current required by the fan motor and the effective voltage at its poles.
- the arrangement uses the properties centrifugal fan such that the flow rate of the air flowing through the fan per unit of time is proportional to the torque of the rotor and, moreover, the pressure difference is proportional to the speed of rotation.
- This solution is further developed by DE 195 02 360 AI in such a way that the performance of the fan is regulated on the basis of the current and the rotational speed of the fan.
- the object of the invention is to keep the volume flow constant within limit ranges regardless of the filters and hoods used. This object is achieved with the characterizing features of claim 1, advantageous embodiments are the subject of the dependent claims.
- the invention provides that at least two measuring points in the air flow behind the fan wheel and in front of the consumer, in particular the respiratory protection hood are arranged.
- the measuring points in the air flow are located inside the housing filter device behind the fan wheel and in front of the fan filter device outlet.
- the pressure measuring sensors as well as the control technology with energy supplier can be optimally combined with the blower filter unit in a compact unit.
- the pressure difference is compared in the control unit with predefined limit values. If the pressure difference is outside the specified limit values, a change in the fan output attempts to regulate the air volume flow to the desired level (e.g. 125 1 / min to 140 1 / min). If this does not succeed, a signaling device is activated which warns the user. This can be done via a measuring device which is coupled to the fan in such a way that the signal device is activated when the limit values of the fan power are exceeded or fallen below, or the signal device is coupled to the control unit in such a way that it is activated when a predetermined differential pressure exceeds - or falls below.
- a measuring device which is coupled to the fan in such a way that the signal device is activated when the limit values of the fan power are exceeded or fallen below, or the signal device is coupled to the control unit in such a way that it is activated when a predetermined differential pressure exceeds - or falls below.
- the volume control for blower filter devices consists of measuring points 1, 2, which are located in the air flow within the housing filter device behind the air wheel 3 and in front of the blower filter device outlet to the breathing hose 8.
- Pressure sensors are arranged at the measuring points 1, 2, the differential pressure of which is determined by a control unit 5 and converted into a control signal for the fan power. If leveling of the air volume flow to a desired level is not possible in this way, a signal device 6 is activated.
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Compressor (AREA)
- Control Of Electric Motors In General (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Measuring Volume Flow (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50114472T DE50114472D1 (de) | 2000-04-27 | 2001-04-06 | Volumensteuerung für gebläsefiltergeräte |
AU6006201A AU6006201A (en) | 2000-04-27 | 2001-04-06 | Volumetric control for blower filter devices |
EP01933612A EP1276541B1 (de) | 2000-04-27 | 2001-04-06 | Volumensteuerung für gebläsefiltergeräte |
US10/258,224 US6953318B2 (en) | 2000-04-27 | 2001-04-06 | Volumetric control for blower filter devices |
AU2001260062A AU2001260062B2 (en) | 2000-04-27 | 2001-04-06 | Volumetric control for blower filter devices |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10021581.5 | 2000-04-27 | ||
DE2000121581 DE10021581B4 (de) | 2000-04-27 | 2000-04-27 | Volumensteuerung für Gebläsefiltergeräte |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001080952A1 true WO2001080952A1 (de) | 2001-11-01 |
Family
ID=7640673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2001/001456 WO2001080952A1 (de) | 2000-04-27 | 2001-04-06 | Volumensteuerung für gebläsefiltergeräte |
Country Status (6)
Country | Link |
---|---|
US (1) | US6953318B2 (de) |
EP (1) | EP1276541B1 (de) |
AT (1) | ATE413213T1 (de) |
AU (2) | AU6006201A (de) |
DE (2) | DE10021581B4 (de) |
WO (1) | WO2001080952A1 (de) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2427564A (en) * | 2003-03-27 | 2007-01-03 | Helmet Integrated Syst Ltd | Powered respirator |
US7810492B2 (en) | 2003-03-27 | 2010-10-12 | Helmet Integrated Systems Limited | Respirator |
WO2011051715A3 (en) * | 2009-11-02 | 2011-08-18 | Scott Health & Safety Ltd. | Improvements to powered air breathing apparatus |
US9119979B2 (en) | 2009-08-11 | 2015-09-01 | 3M Innovative Properties Company | Method of controlling a powered air purifying respirator |
WO2017103246A1 (de) * | 2015-12-18 | 2017-06-22 | Alfred Kärcher Gmbh & Co. Kg | Tragbares individuelles luftreinigungssystem |
US9950197B2 (en) | 2013-04-20 | 2018-04-24 | Dräger Safety AG & Co. KGaA | Blower filter device |
US10625103B2 (en) | 2015-03-17 | 2020-04-21 | Dräger Safety AG & Co. KGaA | Blower filter respirator system |
CN112169207A (zh) * | 2020-09-29 | 2021-01-05 | 深圳市大雨创新实业有限公司 | 自动风量的调速方法 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030190644A1 (en) | 1999-10-13 | 2003-10-09 | Andreas Braun | Methods for generating databases and databases for identifying polymorphic genetic markers |
JP5848702B2 (ja) * | 2009-07-17 | 2016-01-27 | パフテック テクノロジーズ ピーティーワイ リミテッド | レスピレータ |
US8453646B2 (en) * | 2009-12-22 | 2013-06-04 | Honeywell International Inc. | Sensor apparatus and method to regulate air flow in a powered air purifying respirator |
US9192795B2 (en) | 2011-10-07 | 2015-11-24 | Honeywell International Inc. | System and method of calibration in a powered air purifying respirator |
US9808656B2 (en) | 2012-01-09 | 2017-11-07 | Honeywell International Inc. | System and method of oxygen deficiency warning in a powered air purifying respirator |
DE102013016600B4 (de) * | 2013-10-07 | 2019-03-21 | Dräger Safety AG & Co. KGaA | Gebläsefiltergerät, Atemschutzsystem und Verfahren |
US10888721B2 (en) * | 2016-07-28 | 2021-01-12 | Design West Technologies, Inc. | Breath responsive powered air purifying respirator |
US10960237B2 (en) | 2017-07-19 | 2021-03-30 | Honeywell International Inc. | Powered air-purifying respirator (PAPR) with eccentric venturi air flow rate determination |
CN113842528B (zh) * | 2020-06-28 | 2023-08-22 | 南京理工大学 | 一种压差控制的高流量通气方法和系统 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0352938A2 (de) | 1988-07-26 | 1990-01-31 | RACAL HEALTH & SAFETY LIMITED | Atemgerät |
FI80606B (fi) | 1987-10-05 | 1990-03-30 | Kemira Oy | Foerfarande foer reglering av luftmaongden som matas in i en gasmask samt en gasmask som genomfoer denna foerfarande. |
FR2680467A1 (fr) * | 1991-08-21 | 1993-02-26 | Intertechnique Sa | Equipement de protection respiratoire contre les polluants. |
US5322058A (en) * | 1992-03-10 | 1994-06-21 | Dragerwerk Ag | Gas mask and breathing equipment with respiration air recirculation |
EP0621056A1 (de) | 1993-04-14 | 1994-10-26 | Msa (Britain) Limited | Atemschutzgerät |
DE19502360C1 (de) | 1995-01-26 | 1996-03-07 | Becker Gmbh | Verfahren und Vorrichtung zum schnellen Verfügbarmachen von programmbezogenen Daten im Rundfunkgerät |
US5950621A (en) * | 1995-03-23 | 1999-09-14 | Safety Equipment Sweden Ab | Powered air-purifying respirator management system |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60247095A (ja) * | 1984-05-22 | 1985-12-06 | Matsushita Electric Ind Co Ltd | 送風機 |
JPH0874787A (ja) * | 1994-09-09 | 1996-03-19 | Miura Co Ltd | 送風機の送風量制御方法 |
AUPO163896A0 (en) * | 1996-08-14 | 1996-09-05 | Resmed Limited | Determination of respiratory airflow |
-
2000
- 2000-04-27 DE DE2000121581 patent/DE10021581B4/de not_active Expired - Fee Related
-
2001
- 2001-04-06 AT AT01933612T patent/ATE413213T1/de not_active IP Right Cessation
- 2001-04-06 EP EP01933612A patent/EP1276541B1/de not_active Expired - Lifetime
- 2001-04-06 US US10/258,224 patent/US6953318B2/en not_active Expired - Fee Related
- 2001-04-06 AU AU6006201A patent/AU6006201A/xx active Pending
- 2001-04-06 WO PCT/DE2001/001456 patent/WO2001080952A1/de active IP Right Grant
- 2001-04-06 DE DE50114472T patent/DE50114472D1/de not_active Expired - Lifetime
- 2001-04-06 AU AU2001260062A patent/AU2001260062B2/en not_active Ceased
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI80606B (fi) | 1987-10-05 | 1990-03-30 | Kemira Oy | Foerfarande foer reglering av luftmaongden som matas in i en gasmask samt en gasmask som genomfoer denna foerfarande. |
EP0352938A2 (de) | 1988-07-26 | 1990-01-31 | RACAL HEALTH & SAFETY LIMITED | Atemgerät |
FR2680467A1 (fr) * | 1991-08-21 | 1993-02-26 | Intertechnique Sa | Equipement de protection respiratoire contre les polluants. |
US5322058A (en) * | 1992-03-10 | 1994-06-21 | Dragerwerk Ag | Gas mask and breathing equipment with respiration air recirculation |
EP0621056A1 (de) | 1993-04-14 | 1994-10-26 | Msa (Britain) Limited | Atemschutzgerät |
DE19502360C1 (de) | 1995-01-26 | 1996-03-07 | Becker Gmbh | Verfahren und Vorrichtung zum schnellen Verfügbarmachen von programmbezogenen Daten im Rundfunkgerät |
US5950621A (en) * | 1995-03-23 | 1999-09-14 | Safety Equipment Sweden Ab | Powered air-purifying respirator management system |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2427564A (en) * | 2003-03-27 | 2007-01-03 | Helmet Integrated Syst Ltd | Powered respirator |
GB2427564B (en) * | 2003-03-27 | 2007-09-19 | Helmet Integrated Syst Ltd | Respirator |
US7810492B2 (en) | 2003-03-27 | 2010-10-12 | Helmet Integrated Systems Limited | Respirator |
US9119979B2 (en) | 2009-08-11 | 2015-09-01 | 3M Innovative Properties Company | Method of controlling a powered air purifying respirator |
WO2011051715A3 (en) * | 2009-11-02 | 2011-08-18 | Scott Health & Safety Ltd. | Improvements to powered air breathing apparatus |
CN102740931A (zh) * | 2009-11-02 | 2012-10-17 | 斯科特健康及安全有限公司 | 对电动空气呼吸装置的改进 |
US11707638B2 (en) | 2009-11-02 | 2023-07-25 | 3M Innovative Properties Company | Powered air breathing apparatus |
US9950197B2 (en) | 2013-04-20 | 2018-04-24 | Dräger Safety AG & Co. KGaA | Blower filter device |
US10625103B2 (en) | 2015-03-17 | 2020-04-21 | Dräger Safety AG & Co. KGaA | Blower filter respirator system |
WO2017103246A1 (de) * | 2015-12-18 | 2017-06-22 | Alfred Kärcher Gmbh & Co. Kg | Tragbares individuelles luftreinigungssystem |
CN112169207A (zh) * | 2020-09-29 | 2021-01-05 | 深圳市大雨创新实业有限公司 | 自动风量的调速方法 |
Also Published As
Publication number | Publication date |
---|---|
AU2001260062B2 (en) | 2005-08-18 |
DE10021581A1 (de) | 2001-11-15 |
US6953318B2 (en) | 2005-10-11 |
US20030180149A1 (en) | 2003-09-25 |
EP1276541B1 (de) | 2008-11-05 |
DE50114472D1 (de) | 2008-12-18 |
DE10021581B4 (de) | 2005-01-13 |
ATE413213T1 (de) | 2008-11-15 |
EP1276541A1 (de) | 2003-01-22 |
AU6006201A (en) | 2001-11-07 |
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