JP2014526677A - 液位監視器 - Google Patents
液位監視器 Download PDFInfo
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- JP2014526677A JP2014526677A JP2014528922A JP2014528922A JP2014526677A JP 2014526677 A JP2014526677 A JP 2014526677A JP 2014528922 A JP2014528922 A JP 2014528922A JP 2014528922 A JP2014528922 A JP 2014528922A JP 2014526677 A JP2014526677 A JP 2014526677A
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- Prior art keywords
- liquid level
- monitoring circuit
- storage container
- dielectric
- capacitor
- Prior art date
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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
- G01F23/26—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 capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
- G01F23/263—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 capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
- G01F23/266—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 capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors measuring circuits therefor
-
- 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
- G01F23/243—Schematic arrangements of probes combined with measuring circuits
- G01F23/244—Schematic arrangements of probes combined with measuring circuits comprising oscillating circuits
-
- 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
- G01F23/26—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 capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
- G01F23/263—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 capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/20—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of apparatus for measuring liquid level
- G01F25/24—Testing proper functioning of electronic circuits
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7287—Liquid level responsive or maintaining systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7287—Liquid level responsive or maintaining systems
- Y10T137/7306—Electrical characteristic sensing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7287—Liquid level responsive or maintaining systems
- Y10T137/7313—Control of outflow from tank
Abstract
【選択図】図1
【選択図】図2
Description
2つの異なる測定作業のために使用できる。有利には、監視回路の変更可能な動作基点を有する実施形態では、好ましくはSCエレメントの前に接続されている抵抗を変えることにより、コスト削減と共に、より高い集積度が達成される。
。抵抗器R1およびR3は、スイッチング部材S3およびS4により分路され得る。監視回路15は、さらに、積分器として回路内に接続されている1つのオペアンプ16を含む。
Claims (15)
- 誘電体(2)、好ましくは、凝縮液(2)で充てん可能な貯蔵容器(4)の液位調節方法であって、電気容量が少なくとも該貯蔵容器の一定の液位範囲内で液位と相関して連続的に変化する測定コンデンサ(8)を備えた監視回路(15)によって、液位が監視され、以下のステップ:
‐測定コンデンサ(8)の電気容量を測定するステップ;
‐測定コンデンサ(8)のQ値を測定するステップ;
‐測定コンデンサ(8)のQ値に基づいて誘電体(2)の誘電率を決定するステップ;
‐測定された、測定コンデンサ(8)の電気容量および誘電体の誘電率に基づいて、貯蔵容器(4)の液位を決定するステップ;を含み、
‐液位に応じて貯蔵容器から誘電体(2)を排出させるステップと、
上記測定コンデンサ(8)のQ値は、動作基点の変化、または、監視回路(15)の回路のQ値の変化の前後の、監視回路(15)の出力電圧の差を測定することにより測定されることと、を特徴とする、液位調節方法。 - 上記監視回路はSCエレメントを含み、該SCエレメント(20)は、上記測定コンデンサ(8)および少なくとも1つのスイッチング部材(S5;S1、S2)を備えていることを特徴とする、請求項12に記載の液位調節方法。
- 動作基点の変化または回路のQ値の変化のために、それぞれ少なくとも1つのオーム抵抗(P1;R1、R2)が、上記少なくとも1つのスイッチング部材(S5;S1、S2)に直列に高められていることを特徴とする、請求項1または2に記載の液位調節方法。
- 上記誘電体(2)は、貯蔵容器内の予め設定された液位(5)に達したときに、該貯蔵容器から排出されることを特徴とする、請求項1〜3のいずれか1項に記載の液位調節方法。
- 誘電体(2)で充てん可能な貯蔵容器(4)の液位監視のための監視回路(15)であって、
該監視回路(15)は、該貯蔵容器(4)に所属する少なくとも1つの測定コンデンサ(8)を備え、該測定コンデンサ(8)の電気容量は、少なくとも該貯蔵容器(4)の一定の液位範囲内で液位と相関して連続的に変化し、
該監視回路(15)は、測定コンデンサ(8)の電気容量および測定コンデンサ(8)のQ値が測定され、測定コンデンサ(8)のQ値に基づいて誘電体(2)の誘電率が決定され、測定された測定コンデンサ(8)の電気容量と、測定された誘電体(2)の誘電率とに応じて、該貯蔵容器(4)の液位が測定されるように構成され、
上記測定コンデンサ(8)のQ値は、動作基点の変化、または、監視回路(15)の回路のQ値の変化の前後の、監視回路(15)の出力電圧の差を測定することにより測定されることを特徴とする、液位監視のための監視回路(15)。 - 上記監視回路(15)は、その監視回路(15)が第1の運転状態と、第2の運転状態との間で切り換えられ、第1の運転状態において、上記測定コンデンサ(8)の電気容量が測定され、第2の運転状態において、上記測定コンデンサ(8)のQ値が測定されるように構成されていることを特徴とする、請求項5に記載の監視回路(15)。
- 上記監視回路(15)は、上記測定コンデンサ(8)を評価するための1つのSCエレメントを備えていることを特徴とする、請求項5または6に記載の監視回路(15)。
- 運転状態を切り換えるために、上記SCエレメント(20)と直列に接続された1つの抵抗(P1;R1、R2)が変更されていることを特徴とする、請求項5〜7のいずれか1項に記載の監視回路(15)。
- 第2の運転状態において、少なくとも1つの高オーム抵抗(P1;R1、R2)が、少なくとも1つのスイッチング部材(S5;S1、S2)に直列に接続されていることを特徴とする、請求項5〜8のいずれか1項に記載の監視回路(15)。
- 少なくとも第2の運転状態において、上記SCエレメント(20)のスイッチング時間が変更されることを特徴とする、請求項5〜9のいずれか1項に記載の監視回路。
- 第1の運転状態において、1つの抵抗(P1;R1、R2)は、上記スイッチング部材(S5;S1、S2)と直列に低オーム性であるか、または、分路されていることを特徴とする、請求項9に記載の監視回路(15)。
- 請求項5〜11に記載の監視回路(15)と、貯蔵容器(4)とからなる構造であって、1つの測定コンデンサ電極(8.1)が少なくとも部分的に上記貯蔵容器(4)よりなることを特徴とする、構造。
- 凝縮液排出装置(1)から凝縮液(2)を排出するための、制御された凝縮液排出バルブ(6)であって、該凝縮液排出バルブ(6)が、請求項5〜12のいずれか1項に記載の、凝縮液貯蔵容器(4)の液位監視のための監視回路(15)を有する、凝縮液排出バルブ(6)。
- 上記凝縮液排出バルブ(6)は、上記監視回路(15)により上記凝縮液排出バルブ(6)の開度が制御されるように構成されていることを特徴とする、請求項14に記載の凝縮液排出バルブ(6)。
- 少なくとも1つの凝縮液貯蔵容器(4)と、請求項13または14に記載の1つの凝縮液排出バルブ(6)とを含む、凝縮液排出装置(1)。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110053407 DE102011053407A1 (de) | 2011-09-08 | 2011-09-08 | Füllstandsüberwachung |
DE102011053407.5 | 2011-09-08 | ||
PCT/EP2012/065909 WO2013034412A1 (de) | 2011-09-08 | 2012-08-14 | Füllstandüberwachung |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014526677A true JP2014526677A (ja) | 2014-10-06 |
JP5844908B2 JP5844908B2 (ja) | 2016-01-20 |
Family
ID=46754417
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2014528922A Expired - Fee Related JP5844908B2 (ja) | 2011-09-08 | 2012-08-14 | 液位監視器 |
Country Status (8)
Country | Link |
---|---|
US (1) | US9541442B2 (ja) |
EP (1) | EP2753900A1 (ja) |
JP (1) | JP5844908B2 (ja) |
KR (1) | KR101679486B1 (ja) |
CN (1) | CN103782138B (ja) |
BR (1) | BR112014004067A2 (ja) |
DE (1) | DE102011053407A1 (ja) |
WO (1) | WO2013034412A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011053410A1 (de) * | 2011-09-08 | 2013-03-14 | Beko Technologies Gmbh | Verbessertes Verfahren zum automatisierten Ablassen von Kondensat aus einem Druckgassystem |
CN108430908B (zh) * | 2015-12-21 | 2021-06-01 | 利乐拉瓦尔集团及财务有限公司 | 通过使用对无菌罐的缩短吹扫来减少产品损耗 |
WO2018042809A1 (ja) * | 2016-08-29 | 2018-03-08 | 三菱電機株式会社 | 静電容量検出装置及び電力変換装置 |
US20200003601A1 (en) * | 2017-02-23 | 2020-01-02 | Hewlett-Packard Development Company, L.P. | Fluid level sensor |
FR3067808B1 (fr) * | 2017-06-20 | 2019-08-23 | Tristone Flowtech Solutions (Tfs) | Reservoir de liquide a capteur de niveau capacitif |
CN112050903A (zh) * | 2020-08-17 | 2020-12-08 | 福建福清核电有限公司 | 导波雷达液位计蒸汽补偿方法和装置 |
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JP2008116385A (ja) * | 2006-11-07 | 2008-05-22 | Kantoh Electronics Application & Development Inc | 誘電率測定装置 |
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2011
- 2011-09-08 DE DE201110053407 patent/DE102011053407A1/de not_active Ceased
-
2012
- 2012-08-14 US US14/343,728 patent/US9541442B2/en not_active Expired - Fee Related
- 2012-08-14 JP JP2014528922A patent/JP5844908B2/ja not_active Expired - Fee Related
- 2012-08-14 EP EP12751302.6A patent/EP2753900A1/de not_active Withdrawn
- 2012-08-14 CN CN201280043620.2A patent/CN103782138B/zh not_active Expired - Fee Related
- 2012-08-14 WO PCT/EP2012/065909 patent/WO2013034412A1/de active Application Filing
- 2012-08-14 KR KR1020147009116A patent/KR101679486B1/ko active IP Right Grant
- 2012-08-14 BR BR112014004067A patent/BR112014004067A2/pt not_active IP Right Cessation
Patent Citations (4)
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JPS63267002A (ja) * | 1987-04-24 | 1988-11-04 | Kawasaki Kiko Kk | 誘電体共振器 |
JPH09287998A (ja) * | 1996-04-22 | 1997-11-04 | Mitsubishi Heavy Ind Ltd | レベル計測装置 |
US6407557B1 (en) * | 1998-08-27 | 2002-06-18 | Canon Kabushiki Kaisha | Process for measuring the electrical resistance of a resistive body for example for checking the conformity of a liquid product and devices for carrying out such a process |
JP2008116385A (ja) * | 2006-11-07 | 2008-05-22 | Kantoh Electronics Application & Development Inc | 誘電率測定装置 |
Also Published As
Publication number | Publication date |
---|---|
JP5844908B2 (ja) | 2016-01-20 |
DE102011053407A1 (de) | 2013-03-14 |
BR112014004067A2 (pt) | 2017-03-14 |
CN103782138B (zh) | 2017-03-01 |
EP2753900A1 (de) | 2014-07-16 |
US20140202559A1 (en) | 2014-07-24 |
US9541442B2 (en) | 2017-01-10 |
KR101679486B1 (ko) | 2016-11-24 |
KR20140060350A (ko) | 2014-05-19 |
WO2013034412A1 (de) | 2013-03-14 |
CN103782138A (zh) | 2014-05-07 |
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