GB969176A - Supervisory apparatus for detecting damaged tube systems in forced-flow steam generators - Google Patents

Supervisory apparatus for detecting damaged tube systems in forced-flow steam generators

Info

Publication number
GB969176A
GB969176A GB1649863D GB1649863D GB969176A GB 969176 A GB969176 A GB 969176A GB 1649863 D GB1649863 D GB 1649863D GB 1649863 D GB1649863 D GB 1649863D GB 969176 A GB969176 A GB 969176A
Authority
GB
United Kingdom
Prior art keywords
tube
potential
instrument
systems
sources
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
GB1649863D
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.)
Brown Boveri Krupp Reaktorbau GmbH
Original Assignee
Brown Boveri Krupp Reaktorbau 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 Brown Boveri Krupp Reaktorbau GmbH filed Critical Brown Boveri Krupp Reaktorbau GmbH
Publication of GB969176A publication Critical patent/GB969176A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

969,176. Forced flow steam boilers. BROWN BOVERI/KRUPP REAKTORBAU G.m.b.H. April 26, 1963 [April 26, 1962], No. 16496/63. Heading F4A. In a supervisory apparatus for detecting and, if desired, initiating the disconnection of a damaged tube system in a forced flow steam boiler comprising a plurality of parallel-connected tube systems, an electrical circuit is associated with each system, each circuit including means for producing a potential proportional to a measured variable, for example, flow rate or pressure, of the associated system and a potential measuring instrument, the circuits being connected in parallel so that a defective system can be located by a fall in the potential reading of the associated instrument relative to the others. Fig. 1 shows the apparatus applied to a generator with four tube systems. Flow rates in the systems which are normally equal are represented by voltages generated by variable sources Q 1 . . . Q 4 . The sources are respectively series-connected with diodes D 1 . . . D 4 , each diode being in parallel with a respective high resistance voltmeter J 1 . . . J 4 . A voltmeter J 5 is connected across the parallelconnected circuits. If a tube in the system associated with circuit 4, for example, becomes defective the potential of source Q 4 increases and since diode D 4 is connected in the direction of flow the reading of instrument J 4 falls whilst those of instruments J 1 . . . J 3 rise to indicate in each case the voltage difference of the sources. The instrument readings thus indicate the location of the defective tube system. The absolute value of the potential in the faulty measuring circuit is indicated at J 5 . In a modification the pressures in the tube systems actuate variable potentiometers to generate the voltage signals and limit switches actuated by these signals initiate optical or acoustic warning signals and, if desired, automatically disconnect the faulty tube system. The invention is of particular application to a steam generator located in the same vessel as a nuclear reactor and heated by the reactor coolant.
GB1649863D 1962-04-26 1963-04-26 Supervisory apparatus for detecting damaged tube systems in forced-flow steam generators Expired GB969176A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB66996A DE1228621B (en) 1962-04-26 1962-04-26 Monitoring device for the detection of damaged pipe systems of forced flow steam generators

Publications (1)

Publication Number Publication Date
GB969176A true GB969176A (en) 1964-09-09

Family

ID=6975349

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1649863D Expired GB969176A (en) 1962-04-26 1963-04-26 Supervisory apparatus for detecting damaged tube systems in forced-flow steam generators

Country Status (3)

Country Link
CH (1) CH420203A (en)
DE (1) DE1228621B (en)
GB (1) GB969176A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5182804A (en) * 1975-01-16 1976-07-20 Hitachi Ltd Jokigyakushibenno jokimorehogosochi
GB2205150A (en) * 1987-05-28 1988-11-30 Stelrad Group Ltd Blockage detection in heat exchangers e.g. boilers

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE871966C (en) * 1949-12-20 1953-03-26 Wella Ag Measuring device for measuring the drying time of dryers and drying systems
CH356475A (en) * 1959-01-30 1961-08-31 Sulzer Ag Control arrangement for once-through steam generator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5182804A (en) * 1975-01-16 1976-07-20 Hitachi Ltd Jokigyakushibenno jokimorehogosochi
JPS5712042B2 (en) * 1975-01-16 1982-03-09
GB2205150A (en) * 1987-05-28 1988-11-30 Stelrad Group Ltd Blockage detection in heat exchangers e.g. boilers

Also Published As

Publication number Publication date
DE1228621B (en) 1966-11-17
CH420203A (en) 1966-09-15

Similar Documents

Publication Publication Date Title
IT1205251B (en) NUCLEAR REACTOR ELECTRICITY SUPPLY EQUIPMENT
US2358103A (en) Measuring apparatus
US2416276A (en) Instantaneous recorder
GB1210181A (en) Improvements in or relating to electrical filter devices
GB1322230A (en) Method of monitoring a pressure system and device for monitoring the system
GB969176A (en) Supervisory apparatus for detecting damaged tube systems in forced-flow steam generators
US2438964A (en) Magnetic field detector
GB1034717A (en) Improvements in or relating to safety arrangements
US2059786A (en) Potentiometric indicator
ES364823A1 (en) Tube leak detector
US4045282A (en) Method and a device for thermal monitoring of a nuclear reactor core
US3159825A (en) Electronic monitoring means
US2564829A (en) Electrical apparatus for measuring the rate of change of an input voltage
US4063181A (en) Positive safety control device
US2591358A (en) Thermocouple bridge
GB1212039A (en) Boundary value voltage or current sensors
US3235856A (en) Guard circuit for transmission lines
US2356187A (en) Apparatus for electrical zeroizing
US3531978A (en) Thermopile vacuum gage tube simulator
US3088073A (en) Spurious signal eliminator utilizing a three winding transformer having two secondaries bifilarly wound
GB1504130A (en) Readout means
SU1091024A1 (en) Level indicator
SU851658A1 (en) Device for monitoring cooling distillate leaks from electric machine stator winding
US3324435A (en) Voltage breakdown control in strain gages
GB1288383A (en)