DE3771672D1 - Methode und vorrichtung zur ueberwachung eines fluessigkeitsniveaus. - Google Patents

Methode und vorrichtung zur ueberwachung eines fluessigkeitsniveaus.

Info

Publication number
DE3771672D1
DE3771672D1 DE8787307120T DE3771672T DE3771672D1 DE 3771672 D1 DE3771672 D1 DE 3771672D1 DE 8787307120 T DE8787307120 T DE 8787307120T DE 3771672 T DE3771672 T DE 3771672T DE 3771672 D1 DE3771672 D1 DE 3771672D1
Authority
DE
Germany
Prior art keywords
monitoring
liquid level
liquid
level
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 - Fee Related
Application number
DE8787307120T
Other languages
English (en)
Inventor
Ashok Murthy
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.)
Allegheny Ludlum Corp
Original Assignee
Allegheny Ludlum 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 Allegheny Ludlum Corp filed Critical Allegheny Ludlum Corp
Application granted granted Critical
Publication of DE3771672D1 publication Critical patent/DE3771672D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G01F23/24—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/18—Controlling or regulating processes or operations for pouring
    • B22D11/181—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level
    • B22D11/186—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level by using electric, magnetic, sonic or ultrasonic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/064—Accessories therefor for supplying molten metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D2/00—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass
    • 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
    • G01F23/245—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 with a probe moved by an auxiliary power, e.g. meter, to follow automatically the level
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
    • G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Automation & Control Theory (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Continuous Casting (AREA)
DE8787307120T 1986-10-20 1987-08-12 Methode und vorrichtung zur ueberwachung eines fluessigkeitsniveaus. Expired - Fee Related DE3771672D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/921,715 US4728875A (en) 1986-10-20 1986-10-20 Method and apparatus for monitoring a liquid level

Publications (1)

Publication Number Publication Date
DE3771672D1 true DE3771672D1 (de) 1991-08-29

Family

ID=25445863

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787307120T Expired - Fee Related DE3771672D1 (de) 1986-10-20 1987-08-12 Methode und vorrichtung zur ueberwachung eines fluessigkeitsniveaus.

Country Status (7)

Country Link
US (1) US4728875A (de)
EP (1) EP0270204B1 (de)
JP (1) JPS63111424A (de)
KR (1) KR960006309B1 (de)
CA (1) CA1313058C (de)
DE (1) DE3771672D1 (de)
ES (1) ES2025167B3 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02205234A (ja) * 1989-02-02 1990-08-15 Nippon Kinzoku Kogyo Kk 薄肉鋳片連続鋳造における湯面レベル検出方法
FR2667003A1 (fr) * 1990-09-21 1992-03-27 Siderurgie Fse Inst Rech Procede et dispositif de mesure en continu de l'epaisseur du laitier liquide.
WO1994029823A1 (en) * 1993-06-11 1994-12-22 Midwest Instrument Co., Inc. Apparatus and method for molten metal depth detection
JP3107183B2 (ja) * 1993-12-27 2000-11-06 株式会社ニレコ 溶融金属の変位測定方法および装置
US5923102A (en) * 1998-04-20 1999-07-13 Avcheck Corporation Automatic sub-floor pumping system
DE202011051468U1 (de) * 2011-09-28 2013-01-08 Atb Umwelttechnologien Gmbh Pegelmessgerät
KR101603064B1 (ko) * 2016-01-18 2016-03-14 이규한 일체형 워셔액용 모터펌프
JP2017194435A (ja) * 2016-04-22 2017-10-26 株式会社ノーリツ 液位検出装置
RU2619314C1 (ru) * 2016-06-20 2017-05-15 Андрей Николаевич Алексеев Способ реализации датчика уровня
JP6828670B2 (ja) * 2017-12-12 2021-02-10 新東工業株式会社 溶解作業装置及び溶解作業方法
KR102016743B1 (ko) * 2018-07-06 2019-09-02 신신전자공업 주식회사 정전용량 방식의 수위센서
CN109332672A (zh) * 2018-12-14 2019-02-15 河北四通新型金属材料股份有限公司 一种电炉倾倒铝水自动控制系统
CN109822063A (zh) * 2019-03-21 2019-05-31 中信戴卡股份有限公司 一种铝液液位检测装置和铝液注入系统及注入方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3181361A (en) * 1962-09-21 1965-05-04 Corning Glass Works Liquid level measuring system
FR1463902A (fr) * 1965-10-05 1966-07-22 Siderurgie Fse Inst Rech Réglage d'un débit de métal liquide s'écoulant par un orifice
JPS4898870A (de) * 1972-03-30 1973-12-14
DE2321709C3 (de) * 1973-04-28 1975-10-16 Philips Patentverwaltung Gmbh, 2000 Hamburg Elektrische Strahlerlampe, insbesondere für den Einsatz als Fahrzeugscheinwerfer, und Verfahren zu ihrer Herstellung
JPS5182660A (ja) * 1975-01-17 1976-07-20 Shinko Electric Co Ltd Jidoyoyukyokyusochino yoyureberukenshutsusochi
JPS552929A (en) * 1978-06-22 1980-01-10 Toshiba Corp Liquid surface meter
US4470446A (en) * 1980-07-09 1984-09-11 Kabushiki Kaisha Kobe Seiko Sho Method and apparatus for detecting molten metal surface level in a mold
DE3203175A1 (de) * 1982-01-30 1983-08-18 Steag Ag, 4300 Essen Pegelstandserfassungsvorrichtung mit mindestens zwei in verschiedener hoehe angeordneten elektroden
DE3323749A1 (de) * 1983-07-01 1985-01-03 Norddeutsche Affinerie AG, 2000 Hamburg Verfahren zur regelung der badspiegelhoehe einer metallschmelze
JPS6059513A (ja) * 1983-09-12 1985-04-05 Fujitsu Ltd 薄膜磁気ヘッド
JPS60188818A (ja) * 1984-03-09 1985-09-26 Showa Alum Corp 金属溶湯のレベルセンサ
US4600844A (en) * 1984-06-07 1986-07-15 The Marley-Wylain Company Liquid level control apparatus

Also Published As

Publication number Publication date
US4728875A (en) 1988-03-01
KR960006309B1 (ko) 1996-05-13
EP0270204B1 (de) 1991-07-24
CA1313058C (en) 1993-01-26
KR880005432A (ko) 1988-06-29
JPS63111424A (ja) 1988-05-16
EP0270204A1 (de) 1988-06-08
ES2025167B3 (es) 1992-03-16

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee