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FI911328A0 - POVTAGNINGSANORDNING. - Google Patents

POVTAGNINGSANORDNING.

Info

Publication number
FI911328A0
FI911328A0 FI911328A FI911328A FI911328A0 FI 911328 A0 FI911328 A0 FI 911328A0 FI 911328 A FI911328 A FI 911328A FI 911328 A FI911328 A FI 911328A FI 911328 A0 FI911328 A0 FI 911328A0
Authority
FI
Finland
Prior art keywords
sampling tube
inlet
valve
line
substance
Prior art date
Application number
FI911328A
Other languages
Finnish (fi)
Other versions
FI911328A7 (en
Inventor
Robert Krah
Original Assignee
Muetek Gmbh
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 Muetek Gmbh filed Critical Muetek Gmbh
Publication of FI911328A0 publication Critical patent/FI911328A0/en
Publication of FI911328A7 publication Critical patent/FI911328A7/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296—Acoustic waves
    • G01F23/2966—Acoustic waves making use of acoustical resonance or standing waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/24—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid
    • G01F23/241—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid for discrete levels
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296—Acoustic waves
    • G01F23/2966—Acoustic waves making use of acoustical resonance or standing waves
    • G01F23/2967—Acoustic waves making use of acoustical resonance or standing waves for discrete levels
    • 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
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
    • G01N1/2035—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Thermal Sciences (AREA)
  • Electromagnetism (AREA)
  • Acoustics & Sound (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

A device for controlled withdrawal of samples of fluid substances, in particular of liquids from a process, comprises a pump (10) which is connected on the inlet side with a suction line (11) for intake of the fluid substance and on the outlet side with a pressure line (12) connected through a three-way valve (13) to a sampling tube (15). The other end of the sampling tube (15) is connected through a second three-way valve (14) to a discharge line (16), so that the test substance can be withdrawn continuously throughout the process, conveyed through the sampling tube (15) and returned to the process. The third inlet of the first valve (13) is connected to a compressed gas source (18), and the third inlet of the second valve (14) is connected to a withdrawal line (19). If the valves (13, 14) are reversed so that the pump (10) can no longer deliver the substance to be sampled through the sampling tube (15), the volume in the sampling tube (15) is acted on directly by compressed gas and conveyed to an analytical device (23).
FI911328A 1990-03-20 1991-03-19 OBSERVATION ARRANGEMENT. FI911328A7 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4008915 1990-03-20

Publications (2)

Publication Number Publication Date
FI911328A0 true FI911328A0 (en) 1991-03-19
FI911328A7 FI911328A7 (en) 1991-09-21

Family

ID=6402638

Family Applications (2)

Application Number Title Priority Date Filing Date
FI911329A FI911329A7 (en) 1990-03-20 1991-03-19 ANORDNING FOER AUTOMATISK POLYELEKTROLYTBESTAEMNING.
FI911328A FI911328A7 (en) 1990-03-20 1991-03-19 OBSERVATION ARRANGEMENT.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FI911329A FI911329A7 (en) 1990-03-20 1991-03-19 ANORDNING FOER AUTOMATISK POLYELEKTROLYTBESTAEMNING.

Country Status (2)

Country Link
FI (2) FI911329A7 (en)
WO (1) WO1991014932A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI107645B (en) * 1997-06-17 2001-09-14 Neste Oy An automatic sampling and processing system
DE19932050A1 (en) * 1999-03-12 2001-01-18 Hermann Reingruber Roller ball on end of valve stem, pressed onto end of valve stem with enough play for it to roll
EP1508791A1 (en) * 2003-08-22 2005-02-23 Ismatec SA, Laboratoriumstechnik Device for automated bioreactor sampling
DE102004039378A1 (en) * 2004-08-13 2006-02-23 Hte Ag The High Throughput Experimentation Company Device for the controlled removal of fluid samples from pressure vessels

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2076797A5 (en) * 1970-01-28 1971-10-15 Girolami Antoine
US3974681A (en) * 1973-10-23 1976-08-17 Jerry Namery Ultrasonic bubble detector
GB1501903A (en) * 1975-04-18 1978-02-22 British Petroleum Co Sampling device
US4361041A (en) * 1980-09-24 1982-11-30 The United States Of America As Represented By The United States Department Of Energy Non-intrusive ultrasonic liquid-in-line detector for small diameter tubes

Also Published As

Publication number Publication date
WO1991014932A1 (en) 1991-10-03
FI911328A7 (en) 1991-09-21
FI911329A7 (en) 1991-09-21
FI911329A0 (en) 1991-03-19

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Legal Events

Date Code Title Description
FD Application lapsed