JPH03207425A - Discrimination device for filter exchanging time - Google Patents

Discrimination device for filter exchanging time

Info

Publication number
JPH03207425A
JPH03207425A JP2001282A JP128290A JPH03207425A JP H03207425 A JPH03207425 A JP H03207425A JP 2001282 A JP2001282 A JP 2001282A JP 128290 A JP128290 A JP 128290A JP H03207425 A JPH03207425 A JP H03207425A
Authority
JP
Japan
Prior art keywords
filter
gas
flow passage
outer air
flow
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP2001282A
Other languages
Japanese (ja)
Other versions
JPH0790147B2 (en
Inventor
Hiroyasu Ito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujita Corp
Original Assignee
Fujita Corp
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 Fujita Corp filed Critical Fujita Corp
Priority to JP2001282A priority Critical patent/JPH0790147B2/en
Publication of JPH03207425A publication Critical patent/JPH03207425A/en
Publication of JPH0790147B2 publication Critical patent/JPH0790147B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE: To stabilize the filter performance by providing a gas sensor in the inlet and outlet sides of gas flow for the filter eliminating unusefull gas, and connecting the terminals of the sensors with the input terminals of a computor.
CONSTITUTION: A deodorizing filter 1 is hermetically fixed to a flow passage 2. A 1st gas sensor 3 detecting the molecular density of odor gas is provided in the inlet side of outer air flow in the flow passage 2a before passing through the filter 1, and a 2nd gas sensor 4 and an anemometer 5 are provided in the outlet side of outer air flow in the flow passage 2b in the opposite side of filter 1. A blower 6 is provided in the outlet side to take in the outer air through the filter 1 in the flow passage 2. Each output terminals of gas sensors 3, 4 and the anemometer 5 are connected with the input terminals of the microcomputor 8 through a degital convertor 7. By this method, the performance of filter is secured.
COPYRIGHT: (C)1991,JPO&Japio
JP2001282A 1990-01-08 1990-01-08 Filter replacement time determination device Expired - Fee Related JPH0790147B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001282A JPH0790147B2 (en) 1990-01-08 1990-01-08 Filter replacement time determination device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001282A JPH0790147B2 (en) 1990-01-08 1990-01-08 Filter replacement time determination device

Publications (2)

Publication Number Publication Date
JPH03207425A true JPH03207425A (en) 1991-09-10
JPH0790147B2 JPH0790147B2 (en) 1995-10-04

Family

ID=11497097

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001282A Expired - Fee Related JPH0790147B2 (en) 1990-01-08 1990-01-08 Filter replacement time determination device

Country Status (1)

Country Link
JP (1) JPH0790147B2 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10106914A (en) * 1996-09-30 1998-04-24 Dainippon Screen Mfg Co Ltd Life judging device of atmosphere treatment part for substrate treatment device
JPH11226341A (en) * 1998-02-18 1999-08-24 Ebara Corp Method and apparatus for clarification of gas
JP2002126438A (en) * 2000-10-31 2002-05-08 Daikin Ind Ltd Adsorption/desorption device
JP2007117859A (en) * 2005-10-27 2007-05-17 Komatsu Ltd Air cleaner
WO2012118043A1 (en) 2011-02-28 2012-09-07 興研株式会社 Air cleaner and method for predicting breakthrough time for same
JP2013537812A (en) * 2010-09-07 2013-10-07 ネクストテック エルエルシー Remaining useful life instructions for gas mask cartridges and canisters
CN105987820A (en) * 2015-02-12 2016-10-05 苏州宝时得电动工具有限公司 Method and system for predicting service life of air purifier purifying device
JP2017527714A (en) * 2015-07-31 2017-09-21 シャオミ・インコーポレイテッド Smart mask, method for calculating the amount of adsorbed contaminants, smart mask and apparatus
US9782512B2 (en) 2011-09-02 2017-10-10 BLüCHER GMBH Multi-layered wound dressing containing an hydrocolloid and activated carbon
JP2018535380A (en) * 2015-09-30 2018-11-29 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． Air purifier
WO2018198001A3 (en) * 2017-04-28 2019-01-03 3M Innovative Properties Company Air filtration monitoring based on thermoelectric devices
US10561865B2 (en) 2015-07-31 2020-02-18 Xiaomi Inc. Smart mask, method, smart mask and apparatus for calculating pollutant absorption quantity

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5524931A (en) * 1978-08-08 1980-02-22 Hitachi Metals Ltd Tool steel for hot processing
JPS57195430U (en) * 1981-06-05 1982-12-11

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5524931A (en) * 1978-08-08 1980-02-22 Hitachi Metals Ltd Tool steel for hot processing
JPS57195430U (en) * 1981-06-05 1982-12-11

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10106914A (en) * 1996-09-30 1998-04-24 Dainippon Screen Mfg Co Ltd Life judging device of atmosphere treatment part for substrate treatment device
JPH11226341A (en) * 1998-02-18 1999-08-24 Ebara Corp Method and apparatus for clarification of gas
JP2002126438A (en) * 2000-10-31 2002-05-08 Daikin Ind Ltd Adsorption/desorption device
JP2007117859A (en) * 2005-10-27 2007-05-17 Komatsu Ltd Air cleaner
JP2013537812A (en) * 2010-09-07 2013-10-07 ネクストテック エルエルシー Remaining useful life instructions for gas mask cartridges and canisters
WO2012118043A1 (en) 2011-02-28 2012-09-07 興研株式会社 Air cleaner and method for predicting breakthrough time for same
KR20130092610A (en) * 2011-02-28 2013-08-20 코겐 가부시키가이샤 Air cleaner and method for predicting breakthrough time for same
US9333378B2 (en) 2011-02-28 2016-05-10 Koken Ltd. Air cleaning apparatus and method for predicting breakthrough time for the same
US9782512B2 (en) 2011-09-02 2017-10-10 BLüCHER GMBH Multi-layered wound dressing containing an hydrocolloid and activated carbon
CN105987820A (en) * 2015-02-12 2016-10-05 苏州宝时得电动工具有限公司 Method and system for predicting service life of air purifier purifying device
JP2017527714A (en) * 2015-07-31 2017-09-21 シャオミ・インコーポレイテッド Smart mask, method for calculating the amount of adsorbed contaminants, smart mask and apparatus
US10561865B2 (en) 2015-07-31 2020-02-18 Xiaomi Inc. Smart mask, method, smart mask and apparatus for calculating pollutant absorption quantity
US10981022B2 (en) 2015-07-31 2021-04-20 Xiaomi Inc. Smart respirator and method and device for calculating pollutant absorption
JP2018535380A (en) * 2015-09-30 2018-11-29 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． Air purifier
US11198088B2 (en) 2015-09-30 2021-12-14 Koninklijke Philips N.V. Air purifying device
WO2018198001A3 (en) * 2017-04-28 2019-01-03 3M Innovative Properties Company Air filtration monitoring based on thermoelectric devices
US11338236B2 (en) 2017-04-28 2022-05-24 3M Innovative Properties Company Air filtration monitoring based on thermoelectric devices

Also Published As

Publication number Publication date
JPH0790147B2 (en) 1995-10-04

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