GB872904A - Improvements in or relating to apparatus for extracting samples of gas-borne dust - Google Patents

Improvements in or relating to apparatus for extracting samples of gas-borne dust

Info

Publication number
GB872904A
GB872904A GB943859A GB943859A GB872904A GB 872904 A GB872904 A GB 872904A GB 943859 A GB943859 A GB 943859A GB 943859 A GB943859 A GB 943859A GB 872904 A GB872904 A GB 872904A
Authority
GB
United Kingdom
Prior art keywords
flue
nozzle
gas flow
dust
gas
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
GB943859A
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.)
ERNEST ALFRED GRAFTON
JOHN WILLIAM O CONNOR
Central Electricity Generating Board
Original Assignee
ERNEST ALFRED GRAFTON
JOHN WILLIAM O CONNOR
Central Electricity Generating Board
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 ERNEST ALFRED GRAFTON, JOHN WILLIAM O CONNOR, Central Electricity Generating Board filed Critical ERNEST ALFRED GRAFTON
Priority to GB943859A priority Critical patent/GB872904A/en
Publication of GB872904A publication Critical patent/GB872904A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2247—Sampling from a flowing stream of gas
    • G01N1/2258—Sampling from a flowing stream of gas in a stack or chimney
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
    • G01N2001/222—Other features
    • G01N2001/2223—Other features aerosol sampling devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2247—Sampling from a flowing stream of gas
    • G01N1/2258—Sampling from a flowing stream of gas in a stack or chimney
    • G01N2001/2261—Sampling from a flowing stream of gas in a stack or chimney preventing condensation (heating lines)

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Cyclones (AREA)

Abstract

872,904. Centrifugal separators. CENTRAL ELECTRICITY GENERATING BOARD, GRAFTON, E. A., PAYTON, E. J., and O'CONNOR. J. W. March 15, 1960 [March 18, 1959]. No. 9438/59. Class 23 [Also in Group XX] In an apparatus for extracting samples of gas borne flue dust from a flue 3, a base plate 1 secured to the flue wall supports a hollow probe 4 extending. within the flue to a nozzle 5 which faces upstream of the gas flow and has its other end connected to a cyclone dust separator 6, the wall of which may be heated by an electric element (not shown) to prevent condensation thereon from gases of high moisture content, the extracted dust being collected in a container 14, e.g. a glass jar, secured in air-tight fashion by a stirrup 15 against a compressible washer 19, whilst the extracted flue gases pass upwardly through a tubular connection 7 having at its end an adjustable nozzle 8 axially aligned with a Venturi throat 9 which is also carried by the plate 1 and extends into the flue, its end portion 10 being located to the right side of the nozzle 5, to avoid interference and sloped towards the base plate 1 considered in the direction of the gas flow. By adjustment of the nozzle 8 a gas flow which has a velocity substantially equal to that in the flue is induced through the cyclone 6.
GB943859A 1959-03-18 1959-03-18 Improvements in or relating to apparatus for extracting samples of gas-borne dust Expired GB872904A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB943859A GB872904A (en) 1959-03-18 1959-03-18 Improvements in or relating to apparatus for extracting samples of gas-borne dust

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB943859A GB872904A (en) 1959-03-18 1959-03-18 Improvements in or relating to apparatus for extracting samples of gas-borne dust

Publications (1)

Publication Number Publication Date
GB872904A true GB872904A (en) 1961-07-12

Family

ID=9871972

Family Applications (1)

Application Number Title Priority Date Filing Date
GB943859A Expired GB872904A (en) 1959-03-18 1959-03-18 Improvements in or relating to apparatus for extracting samples of gas-borne dust

Country Status (1)

Country Link
GB (1) GB872904A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3645662A (en) * 1970-02-25 1972-02-29 Gordon Mclarty Safety switch and circuit for oil-burning furnace
CN110749523A (en) * 2019-10-16 2020-02-04 华电电力科学研究院有限公司 Denitration catalyst abrasion strength detection device and working method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3645662A (en) * 1970-02-25 1972-02-29 Gordon Mclarty Safety switch and circuit for oil-burning furnace
CN110749523A (en) * 2019-10-16 2020-02-04 华电电力科学研究院有限公司 Denitration catalyst abrasion strength detection device and working method thereof

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