FR2247691A1 - Series flow through reheater hairpins improves efficiency - HP steam of reactor passes through longer hairpin bank thence inner rank - Google Patents

Series flow through reheater hairpins improves efficiency - HP steam of reactor passes through longer hairpin bank thence inner rank

Info

Publication number
FR2247691A1
FR2247691A1 FR7336300A FR7336300A FR2247691A1 FR 2247691 A1 FR2247691 A1 FR 2247691A1 FR 7336300 A FR7336300 A FR 7336300A FR 7336300 A FR7336300 A FR 7336300A FR 2247691 A1 FR2247691 A1 FR 2247691A1
Authority
FR
France
Prior art keywords
steam
reheater
vapour
hairpins
tubes
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.)
Granted
Application number
FR7336300A
Other languages
French (fr)
Other versions
FR2247691B3 (en
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.)
Fives Cail Babcock SA
Original Assignee
Fives Cail Babcock 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 Fives Cail Babcock SA filed Critical Fives Cail Babcock SA
Priority to FR7336300A priority Critical patent/FR2247691A1/en
Publication of FR2247691A1 publication Critical patent/FR2247691A1/en
Application granted granted Critical
Publication of FR2247691B3 publication Critical patent/FR2247691B3/fr
Granted 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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0202—Header boxes having their inner space divided by partitions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22G—SUPERHEATING OF STEAM
    • F22G1/00—Steam superheating characterised by heating method
    • F22G1/005—Steam superheating characterised by heating method the heat being supplied by steam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28B—STEAM OR VAPOUR CONDENSERS
    • F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
    • 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
    • F28D7/06—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 having a single U-bend
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0054—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for nuclear applications

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

In a vapour reheater as used to reheat the HP/LP steam of a nuclear power station, where the vapour to be reheated is outside the hairpin tubes tubes and the high temp. vapour (steam) is inside the tubes, the hot vapour flows first through the longer outer tubes of the hairpin tube bundle and then, in series, through the inner thermally lighter loaded hairpins. Used with a vapour (steam) reheater as used on BWR, PWR reactors to reheat the steam after the HP or LP turbines. Results in redn. of the risk of reflux of condensate in outer tubes due to higher heat transfer loading on these outer tubes, partic. during sudden increase in flow on the LP side.
FR7336300A 1973-10-11 1973-10-11 Series flow through reheater hairpins improves efficiency - HP steam of reactor passes through longer hairpin bank thence inner rank Granted FR2247691A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7336300A FR2247691A1 (en) 1973-10-11 1973-10-11 Series flow through reheater hairpins improves efficiency - HP steam of reactor passes through longer hairpin bank thence inner rank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7336300A FR2247691A1 (en) 1973-10-11 1973-10-11 Series flow through reheater hairpins improves efficiency - HP steam of reactor passes through longer hairpin bank thence inner rank

Publications (2)

Publication Number Publication Date
FR2247691A1 true FR2247691A1 (en) 1975-05-09
FR2247691B3 FR2247691B3 (en) 1976-09-03

Family

ID=9126236

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7336300A Granted FR2247691A1 (en) 1973-10-11 1973-10-11 Series flow through reheater hairpins improves efficiency - HP steam of reactor passes through longer hairpin bank thence inner rank

Country Status (1)

Country Link
FR (1) FR2247691A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106559A (en) * 1976-12-29 1978-08-15 Westinghouse Electric Corp. Tube side flow control device for moisture separator reheaters
US4166497A (en) * 1976-01-21 1979-09-04 Westinghouse Electric Corp. Apparatus for increasing effective scavenging vent steam within a heat exchanger which condenses vapor inside long tubes
US4206802A (en) * 1978-03-27 1980-06-10 General Electric Company Moisture separator reheater with thermodynamically enhanced means for substantially eliminating condensate subcooling
US4223722A (en) * 1978-10-02 1980-09-23 General Electric Company Controllable inlet header partitioning
EP0094097A2 (en) * 1982-05-11 1983-11-16 KRW Energy Systems Inc. Non-plugging, pressure equalized tube sheet for gasification system heat exchanger
US4473112A (en) * 1981-02-23 1984-09-25 Southwestern Engineering Company Manifold
US4702308A (en) * 1983-08-26 1987-10-27 Southwestern Engineering Company Manifold
FR2620196A1 (en) * 1987-08-28 1989-03-10 Gostev Dmitry CONDENSATE EVACUATION SYSTEM
EP0539052A1 (en) * 1991-10-21 1993-04-28 General Electric Company Boiling water nuclear reactor in which parasitic bypass flow of coolant is reduced

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4166497A (en) * 1976-01-21 1979-09-04 Westinghouse Electric Corp. Apparatus for increasing effective scavenging vent steam within a heat exchanger which condenses vapor inside long tubes
US4106559A (en) * 1976-12-29 1978-08-15 Westinghouse Electric Corp. Tube side flow control device for moisture separator reheaters
US4206802A (en) * 1978-03-27 1980-06-10 General Electric Company Moisture separator reheater with thermodynamically enhanced means for substantially eliminating condensate subcooling
US4223722A (en) * 1978-10-02 1980-09-23 General Electric Company Controllable inlet header partitioning
US4473112A (en) * 1981-02-23 1984-09-25 Southwestern Engineering Company Manifold
EP0094097A2 (en) * 1982-05-11 1983-11-16 KRW Energy Systems Inc. Non-plugging, pressure equalized tube sheet for gasification system heat exchanger
EP0094097A3 (en) * 1982-05-11 1984-05-09 KRW Energy Systems Inc. Non-plugging, pressure equalized tube sheet for gasification system heat exchanger
US4702308A (en) * 1983-08-26 1987-10-27 Southwestern Engineering Company Manifold
FR2620196A1 (en) * 1987-08-28 1989-03-10 Gostev Dmitry CONDENSATE EVACUATION SYSTEM
EP0539052A1 (en) * 1991-10-21 1993-04-28 General Electric Company Boiling water nuclear reactor in which parasitic bypass flow of coolant is reduced

Also Published As

Publication number Publication date
FR2247691B3 (en) 1976-09-03

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Legal Events

Date Code Title Description
ST Notification of lapse