GB351584A - Improved method of and apparatus for extracting and sampling dust from dust-laden air or gas flowing in a conduit - Google Patents

Improved method of and apparatus for extracting and sampling dust from dust-laden air or gas flowing in a conduit

Info

Publication number
GB351584A
GB351584A GB10475/30A GB1047530A GB351584A GB 351584 A GB351584 A GB 351584A GB 10475/30 A GB10475/30 A GB 10475/30A GB 1047530 A GB1047530 A GB 1047530A GB 351584 A GB351584 A GB 351584A
Authority
GB
United Kingdom
Prior art keywords
dust
conduit
nozzle
gas
manometer
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
GB10475/30A
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.)
Davidson and Co Ltd
Original Assignee
Davidson and Co Ltd
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 Davidson and Co Ltd filed Critical Davidson and Co Ltd
Priority to GB10475/30A priority Critical patent/GB351584A/en
Publication of GB351584A publication Critical patent/GB351584A/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
    • G01N1/2202—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

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)
  • Sampling And Sample Adjustment (AREA)

Abstract

<PICT:0351584/III/1> In a device for withdrawing and estimating the dust in a sample of dust-laden gas flowing through a conduit, the sampling nozzle itself is used as a pilot tube for determining the fluid pressure conditions both within the conduit and within the nozzle itself. The nozzle 15 which faces the gas current in the conduit 5 communicates through a cock 16 with a dust extractor 18 and suction fan 20. Small tubes 21, 23 are fitted on the inside and outside respectively of the nozzle and have openings 26, 27 at right-angles to the gas current. Manometers C, A'have one limb open to the atmosphere and the [other limb connected to tubes 21, 23 respectively,] while manometer B is connected across the tubes 21, 23. Manometer C indicates the static pressure in the conduit. When cock 16 is closed the nozzle 15 and tube 23 convey both the static pressure and the impact pressure of the gas to manometer A, while B registers the impact pressure alone. When cock 16 is opened to withdraw a sample the suction is regulated until manometers A, C give the same reading. The gas velocity meters A, C give the same reading. The gas velocity in the nozzle is then the same as that in the conduit and the amount of dust passing through the latter is readily calculated from the test of the sample withdrawn.
GB10475/30A 1930-04-02 1930-04-02 Improved method of and apparatus for extracting and sampling dust from dust-laden air or gas flowing in a conduit Expired GB351584A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB10475/30A GB351584A (en) 1930-04-02 1930-04-02 Improved method of and apparatus for extracting and sampling dust from dust-laden air or gas flowing in a conduit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10475/30A GB351584A (en) 1930-04-02 1930-04-02 Improved method of and apparatus for extracting and sampling dust from dust-laden air or gas flowing in a conduit

Publications (1)

Publication Number Publication Date
GB351584A true GB351584A (en) 1931-07-02

Family

ID=9968524

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10475/30A Expired GB351584A (en) 1930-04-02 1930-04-02 Improved method of and apparatus for extracting and sampling dust from dust-laden air or gas flowing in a conduit

Country Status (1)

Country Link
GB (1) GB351584A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2645940A (en) * 1952-05-14 1953-07-21 Atomic Energy Commission Snap sampler
US3149493A (en) * 1961-10-16 1964-09-22 Wyle Laboratories Fluid sampling device
US3774442A (en) * 1972-01-05 1973-11-27 Bahco Ab Particle sampling devices

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2645940A (en) * 1952-05-14 1953-07-21 Atomic Energy Commission Snap sampler
US3149493A (en) * 1961-10-16 1964-09-22 Wyle Laboratories Fluid sampling device
US3774442A (en) * 1972-01-05 1973-11-27 Bahco Ab Particle sampling devices

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