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GB802281A - Improvements in apparatus for detecting carbon monoxide - Google Patents

Improvements in apparatus for detecting carbon monoxide

Info

Publication number
GB802281A
GB802281A GB545/56A GB54556A GB802281A GB 802281 A GB802281 A GB 802281A GB 545/56 A GB545/56 A GB 545/56A GB 54556 A GB54556 A GB 54556A GB 802281 A GB802281 A GB 802281A
Authority
GB
United Kingdom
Prior art keywords
filter
carbon monoxide
passes
detecting
media
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.)
Expired
Application number
GB545/56A
Inventor
Reginald Valentine
Harry Gordon Glover
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.)
University of Surrey
Original Assignee
University of Surrey
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 University of Surrey filed Critical University of Surrey
Priority to GB545/56A priority Critical patent/GB802281A/en
Publication of GB802281A publication Critical patent/GB802281A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2411—Filter cartridges
    • B01D46/2414—End caps including additional functions or special forms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
    • B01D46/64—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series arranged concentrically or coaxially
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
    • G01N27/16—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by burning or catalytic oxidation of surrounding material to be tested, e.g. of gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2265/00—Casings, housings or mounting for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2265/04—Permanent measures for connecting different parts of the filter, e.g. welding, glueing or moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2275/00—Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2275/10—Multiple layers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electrochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Geometry (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

<PICT:0802281/III/1> In the apparatus described in Specification 756,662 for detecting the presence of carbon monoxide in gases and comprising a pair of thermistors one of which is surrounded by an oxidizing material whereby the temperature rises when carbon monoxide is present, the gases under test are first passed through a filter to remove tarry and solid particles, the filter comprising a series of media of graced porosity. In a suitable form, the filter consists of an outer cylinder of aluminium 10, within which is mounted a foraminous cylinder 15 containing a pipe 16 provided with flanges 216, 163, thus forming chambers to contain filter media. The gas to be tested enters at an opening 11 and passes through a roll of metal gauze A, coarse glass wool B, bonded fine glass fibre C and C1, superfine glass fibre D and finally cotton/asbestos fibre E. The gas free from particles then passes through tube 16 and exit to the detecting apparatus.
GB545/56A 1956-01-06 1956-01-06 Improvements in apparatus for detecting carbon monoxide Expired GB802281A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB545/56A GB802281A (en) 1956-01-06 1956-01-06 Improvements in apparatus for detecting carbon monoxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB545/56A GB802281A (en) 1956-01-06 1956-01-06 Improvements in apparatus for detecting carbon monoxide

Publications (1)

Publication Number Publication Date
GB802281A true GB802281A (en) 1958-10-01

Family

ID=9706246

Family Applications (1)

Application Number Title Priority Date Filing Date
GB545/56A Expired GB802281A (en) 1956-01-06 1956-01-06 Improvements in apparatus for detecting carbon monoxide

Country Status (1)

Country Link
GB (1) GB802281A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1176399B (en) * 1960-10-03 1964-08-20 Bendix Corp Method for measuring a quantity of heat measured value proportional to the oxygen content of a natural or artificial atmosphere and device for displaying the oxygen content of such atmospheres
FR2408721A1 (en) * 1977-11-15 1979-06-08 Daimler Benz Ag SOOT FILTER AVAILABLE IN THE BURNT GAS CURRENT OF INTERNAL COMBUSTION ENGINES WITH AIR COMPRESSION
FR2442964A2 (en) * 1978-12-02 1980-06-27 Daimler Benz Ag SOOT FILTER AVAILABLE IN THE CURRENT OF BURNED GASES FROM AN AIR COMPRESSION INTERNAL COMBUSTION ENGINE
WO1999062618A1 (en) * 1998-06-04 1999-12-09 Donaldson Company, Inc. Stack filter assembly and methods

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1176399B (en) * 1960-10-03 1964-08-20 Bendix Corp Method for measuring a quantity of heat measured value proportional to the oxygen content of a natural or artificial atmosphere and device for displaying the oxygen content of such atmospheres
FR2408721A1 (en) * 1977-11-15 1979-06-08 Daimler Benz Ag SOOT FILTER AVAILABLE IN THE BURNT GAS CURRENT OF INTERNAL COMBUSTION ENGINES WITH AIR COMPRESSION
FR2442964A2 (en) * 1978-12-02 1980-06-27 Daimler Benz Ag SOOT FILTER AVAILABLE IN THE CURRENT OF BURNED GASES FROM AN AIR COMPRESSION INTERNAL COMBUSTION ENGINE
WO1999062618A1 (en) * 1998-06-04 1999-12-09 Donaldson Company, Inc. Stack filter assembly and methods
US6093237A (en) * 1998-06-04 2000-07-25 Donaldson Company, Inc. Stack filter assembly and methods

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