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1. WO2013146535 - WATER GAUGE AND NUCLEAR POWER FACILITY

Publication Number WO/2013/146535
Publication Date 03.10.2013
International Application No. PCT/JP2013/058089
International Filing Date 21.03.2013
IPC
G01F 23/22 2006.01
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME
23Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm
22by measurement of 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
G21C 17/035 2006.01
GPHYSICS
21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
CNUCLEAR REACTORS
17Monitoring; Testing
02Devices or arrangements for monitoring coolant or moderator
035Moderator- or coolant-level detecting devices
CPC
G01F 23/247
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
23Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm
22by measurement of 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
24by measuring variations of resistance of resistors due to contact with conductor fluid
246thermal devices
247for discrete levels
G21C 17/035
GPHYSICS
21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
CNUCLEAR REACTORS
17Monitoring; Testing
02Devices or arrangements for monitoring coolant or moderator
035Moderator- or coolant-level detecting devices
Y02E 30/30
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
30Energy generation of nuclear origin
30Nuclear fission reactors
Applicants
  • 三菱重工業株式会社 MITSUBISHI HEAVY INDUSTRIES, LTD. [JP]/[JP]
Inventors
  • 東 淳一 HIGASHI, Junichi
  • 吉次 信 YOSHITSUGU, Makoto
Agents
  • 酒井 宏明 SAKAI, Hiroaki
Priority Data
2012-07118727.03.2012JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) WATER GAUGE AND NUCLEAR POWER FACILITY
(FR) JAUGE DE NIVEAU D'EAU ET CENTRALE NUCLÉAIRE
(JA) 水位計および原子力施設
Abstract
(EN)
 A water gauge (30) for measuring the water level by immersing the same into water so that the longitudinal direction thereof becomes the depth direction, said gauge comprising: a plurality of resistance temperature detectors (37) aligned in the longitudinal direction; a heater (38) that serves as a heat source, and is provided along the longitudinal direction; and a control unit (40) that acquires the resistance values of the plurality of resistance temperature detectors (37), and is capable of deriving the water level on the basis of the acquired plurality of resistance values. The plurality of resistance temperature detectors (37) are a reference resistance temperature detector (37a) that serves as a reference and is less susceptible to the heat from the heater (38), and heated resistance temperature detectors (37b) that are more susceptible to the heat from the heater (38) compared to the reference resistance temperature detector (37a).
(FR)
L'invention concerne une jauge de niveau d'eau (30) pour mesurer le niveau d'eau par l'immersion de celle-ci dans l'eau de telle sorte que la direction longitudinale de celle-ci devienne la direction dans le sens de la profondeur, ladite jauge comprenant : une pluralité de détecteurs de température à résistance (37) alignés dans la direction longitudinale ; un élément chauffant (38) qui sert de source de chaleur, et est disposé le long de la direction longitudinale ; et une unité de commande (40) qui acquiert les valeurs de résistance des différents détecteurs de température à résistance (37) et permet de déduire le niveau d'eau sur la base des différentes valeurs de résistance acquises. Les différents détecteurs de température à résistance (37) comprennent un détecteur de température à résistance de référence (37a) qui sert de référence et est moins sensible à la chaleur de l'élément chauffant (38), et des détecteurs de température à résistance (37b) qui sont plus sensibles à la chaleur de l'élément chauffant (38) par comparaison avec le détecteur de température à résistance de référence (37a).
(JA)
 長手方向が深さ方向となるように水没させて水位を計測する水位計30であって、長手方向に並べて設けられた複数の測温抵抗体37と、長手方向に亘って設けられた加熱源となるヒータ38と、複数の測温抵抗体37の抵抗値をそれぞれ取得し、取得した複数の抵抗値に基づいて、水位を導出可能な制御部40と、を備え、複数の測温抵抗体37は、ヒータ38による加熱の影響を受け難い基準となる基準用測温抵抗体37aと、基準用測温抵抗体37aに比してヒータ38による加熱の影響を受け易い加熱用測温抵抗体37bと、を有している。
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