GB1327068A - Leak detection in heat exchangers - Google Patents

Leak detection in heat exchangers

Info

Publication number
GB1327068A
GB1327068A GB5701170A GB5701170A GB1327068A GB 1327068 A GB1327068 A GB 1327068A GB 5701170 A GB5701170 A GB 5701170A GB 5701170 A GB5701170 A GB 5701170A GB 1327068 A GB1327068 A GB 1327068A
Authority
GB
United Kingdom
Prior art keywords
tube
sodium
hydrogen
reservoir
heat exchanger
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
GB5701170A
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.)
Electricite de France SA
Original Assignee
Electricite de France SA
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 Electricite de France SA filed Critical Electricite de France SA
Publication of GB1327068A publication Critical patent/GB1327068A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/003—Multiple wall conduits, e.g. for leak detection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/42—Applications, arrangements, or dispositions of alarm or automatic safety devices
    • F22B37/421—Arrangements for detecting leaks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/005—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for only one medium being tubes having bent portions or being assembled from bent tubes or being tubes having a toroidal configuration
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
    • G01M3/22—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
    • G01M3/226—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for containers, e.g. radiators
    • G01M3/228—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for containers, e.g. radiators for radiators
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/002—Detection of leaks
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Abstract

1327068 Leak detection in heat exchangers ELECTRICITE DE FRANCE 1 Dec 1970 [3 Dec 1969] 57011/70 Heading G1S When it has been determined during normal running of a heat exchanger having water and/or steam circulating in a tank of sodium that a microleak exists within a particular group of tubes, the tube having the micro-leak is determined by bring- ing the heat exchanger to a constant temperature at which the rate of heat exchange is substantially zero, simultaneously depressurizing all the tubes of the heat exchanger to a pressure slightly higher than the pressure of the sodium, connecting each tube of the group successively to a reservoir of hydrogenated fluid which is introduced into the tubes, and detecting the presence of hydrogen in the sodium when the hydrogenated fluid is introduced into the tube having the leak. The hydrogenated fluid may be water and/or steam, or hydrogen. As shown in Fig.3, water may be heated under pressure in a reservoir 10 having a volume equal to the volume of a tube. The reservoir 10 has a heater 17, a depth gauge 13, a temperature transducer 26, an inlet pipe 21 for pressurizing gas such as argon or nitrogen, a gauge 22 for measuring the pressure inside the reservoir, an outlet 20 for connection to a heat exchanger tube 5, and a further gauge 23 for measuring the pressure applied to tube 5. Alternatively, when hydrogen gas is used as the hydrogenated fluid, a hydrogen cylinder may constitute the reservoir, Fig.6 (not shown). Each heat exchanger tube may have a suitable aperture 30 for receiving a pipe coupling 33, Fig. 5, having a non-return valve 34, 35 through which the hydrogenated fluid is introduced into the tube. Inert gas may be used to maintain the desired pressure in the tubes throughout the test. The hydrogen in the sodium may be detected by a nickel membrane in contact with the sodium, or in contact with argon gas in contact with the sodium the rate of diffusion of hydrogen through the membrance being measured by a mass spectrometer.
GB5701170A 1969-12-03 1970-12-01 Leak detection in heat exchangers Expired GB1327068A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6941746A FR2109027A5 (en) 1969-12-03 1969-12-03

Publications (1)

Publication Number Publication Date
GB1327068A true GB1327068A (en) 1973-08-15

Family

ID=9044028

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5701170A Expired GB1327068A (en) 1969-12-03 1970-12-01 Leak detection in heat exchangers

Country Status (8)

Country Link
US (1) US3721116A (en)
BE (1) BE758890A (en)
CH (1) CH528718A (en)
FR (1) FR2109027A5 (en)
GB (1) GB1327068A (en)
IT (1) IT943507B (en)
NL (1) NL169245C (en)
SE (1) SE371710B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1199552A2 (en) * 2000-10-19 2002-04-24 Carrier Corporation Absorption chiller leak detection

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3969077A (en) * 1971-12-16 1976-07-13 Varian Associates Alkali metal leak detection method and apparatus
JPS5612530A (en) * 1979-07-12 1981-02-06 Hitachi Ltd Detecting system for sodium leakage
EP1854534A1 (en) * 2006-05-12 2007-11-14 Methanol Casale S.A. Isothermal reactor
FR2973876B1 (en) * 2011-04-07 2013-10-18 Sarl R D C Productions METHOD OF TESTING THE PLATES OF A HEAT EXCHANGER
US9506785B2 (en) 2013-03-15 2016-11-29 Rain Bird Corporation Remote flow rate measuring
CN104534919B (en) * 2014-11-24 2016-03-16 河南巨龙生物工程股份有限公司 A kind of method of simultaneously carrying out the scale removal of fermentation tank coil pipe and leak detection
WO2018013857A1 (en) 2016-07-13 2018-01-18 Rain Bird Corporation Flow sensor
US10473494B2 (en) 2017-10-24 2019-11-12 Rain Bird Corporation Flow sensor
US11662242B2 (en) 2018-12-31 2023-05-30 Rain Bird Corporation Flow sensor gauge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1199552A2 (en) * 2000-10-19 2002-04-24 Carrier Corporation Absorption chiller leak detection
EP1199552A3 (en) * 2000-10-19 2004-04-21 Carrier Corporation Absorption chiller leak detection

Also Published As

Publication number Publication date
NL169245C (en) 1982-06-16
US3721116A (en) 1973-03-20
BE758890A (en) 1971-04-16
SE371710B (en) 1974-11-25
IT943507B (en) 1973-04-10
DE2059370A1 (en) 1971-06-16
FR2109027A5 (en) 1972-05-26
NL169245B (en) 1982-01-18
NL7017454A (en) 1971-06-07
DE2059370B2 (en) 1972-09-28
CH528718A (en) 1972-09-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years