EP0131670B2 - Speisewasservorwärmer mit Enthitzer insbesondere für thermische Kraftanlage - Google Patents

Speisewasservorwärmer mit Enthitzer insbesondere für thermische Kraftanlage Download PDF

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Publication number
EP0131670B2
EP0131670B2 EP83401463A EP83401463A EP0131670B2 EP 0131670 B2 EP0131670 B2 EP 0131670B2 EP 83401463 A EP83401463 A EP 83401463A EP 83401463 A EP83401463 A EP 83401463A EP 0131670 B2 EP0131670 B2 EP 0131670B2
Authority
EP
European Patent Office
Prior art keywords
steam
chest
tubes
box
superheating
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 - Lifetime
Application number
EP83401463A
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English (en)
French (fr)
Other versions
EP0131670A1 (de
EP0131670B1 (de
Inventor
Waldémar Bongard
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.)
Hamon Sobelco SA
Original Assignee
Hamon Sobelco 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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8191422&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0131670(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hamon Sobelco SA filed Critical Hamon Sobelco SA
Priority to AT83401463T priority Critical patent/ATE25284T1/de
Priority to DE8383401463T priority patent/DE3369553D1/de
Priority to EP83401463A priority patent/EP0131670B2/de
Priority to AU27214/84A priority patent/AU565700B2/en
Priority to ZA845385A priority patent/ZA845385B/xx
Publication of EP0131670A1 publication Critical patent/EP0131670A1/de
Publication of EP0131670B1 publication Critical patent/EP0131670B1/de
Application granted granted Critical
Publication of EP0131670B2 publication Critical patent/EP0131670B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
    • F22D1/32—Feed-water heaters, i.e. economisers or like preheaters arranged to be heated by steam, e.g. bled from turbines
    • 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
    • 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
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • F28F9/0131—Auxiliary supports for elements for tubes or tube-assemblies formed by plates

Definitions

  • the present invention relates to a food water heater comprising a desuperheating zone, in particular for a thermal electric power station.
  • the water supplying the boiler passes through a series of heaters generally consisting of a tube bundle, an outer casing and water boxes or collectors.
  • the heating steam enters the envelope around the tube bundle where it eventually condenses, giving up its heat to the food water passing through the tubes.
  • the entry and exit of steam into the desuperheating zone are particularly delicate places because they are very localized and have a reduced section, which results in an impact by steam which can be dangerous for the tubes which are subjected to it ( vibrations, erosion).
  • EP-A-0 123 986 which represents a state of the art according to article 54 (3) EPC, describes a water heater comprising a box traversed by a bundle of tubes traversed by drinking water. However, in this heater, the box has a central inlet which extends only over a small part of the length.
  • the present invention aims to provide a food water heater comprising a desuperheating zone which does not have the drawbacks of the prior art.
  • the subject of the present invention is a food water heater comprising a steam desuperheating box traversed longitudinally by a bundle of tubes traversed by the food water, characterized in that the box comprises a steam inlet s '' extending practically over the entire length of the box and, the steam outlet extending on the lateral side opposite the steam inlet and over an equivalent length, so as to allow a circulation of steam orthogonally to the tubes passing through the box .
  • the heater is also advantageous for the heater to be free of condensation tubes in the zone for the outlet of the vapor from the box, thus avoiding any obstacle when entering the condensation zone of the heater.
  • the heater 1 shown in Figs. 1 and 2 is a conventional heater. At the upper part of the heater 1 is an inlet 2 for superheated steam. This input is connected to a horizontal desuperheating chamber 3 via a distribution box 4.
  • the box is traversed longitudinally by tubes such as 5.
  • Vertical baffles are arranged inside the box 3. These baffles partly used to support the tubes 5.
  • the heater 10 according to the invention shown in FIG. 3 comprises a cylindrical envelope 11.
  • a vertical inlet 12 of superheated steam is connected to a desuperheating box 13 arranged horizontally by means of a distribution box 14 arranged horizontally.
  • the boxes 13 and 14 have the lengths substantially equal to each other and are separated by a horizontal wall 15.
  • the distribution box further comprises an upper horizontal wall 16, a vertical side wall 17 and a flat inclined side wall 18 close to the wall of the casing 11 of the heater and connecting to the horizontal lower wall 19 of the box 13 by l 'through a vertical wall 20.
  • a space is provided between the partition wall 15 and the inclined wall 18 on all of their lengths to allow the entry of steam into the desuperheating box 13 from the distribution box 14.
  • the vapor is thus introduced into the box 13 along the inclined wall 18, then passes between the horizontal walls 15 and 19 where there is arranged a beam of tubes 21, horizontal and parallel to the axis of cylindrical envelope 11.
  • These tubes 21 are supported by a series of plates 22 orthogonal to the tubes. These plates are in one piece and are shaped like a rectangle with cut upper corners. These plates occupy the entire cross section of the box 13 with the exception of an area in the vicinity of the walls 18 and 20.
  • the vapor leaves the box 13 in the vicinity of the wall of the cylindrical envelope 11 in an area where the heater is devoid of condensation tubes, all the condensation tubes such as 23 being disposed at a level below the level of the bottom wall 19 of box 13.
  • the steam inlet can be horizontal and the tubes vertical.
  • the distribution box may include, instead of the inclined wall 18 and the vertical wall 20, a single curved wall connecting to the walls 16 and 19 and close to the wall of the envelope 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)
  • Water Treatment By Sorption (AREA)
  • Beverage Vending Machines With Cups, And Gas Or Electricity Vending Machines (AREA)
  • Greenhouses (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Control Of Resistance Heating (AREA)
  • Beans For Foods Or Fodder (AREA)
  • Air Supply (AREA)
  • Hydrogen, Water And Hydrids (AREA)

Claims (4)

1. Speisewasservorwärmer mit einer Kammer (13) zum Erhitzen des Dampfes, die in Längsrichtung von einem Bündel von Rohren (21) durchzogen ist, durch die das Speisewasser geht, dadurch gekennzeichnet. daß die Kammer einen Dampfeingang, der sich praktisch über die gesamte Länge der Erhitzungskammer (13) erstreckt, und einen Dampfausgang aufweist, der sich über die dem Dampfeingang gegenüberliegende Seite und über eine äquivalente Länge erstreckt, derart, daß eine Zirkulation des Dampfes orthogonal zu den die Kammer (13) durchziehenden Rohren möglich ist.
2. Vorwärmer nach Anspruch 1, dadurch gekennzeichnet, daß er eine Verteilerkammer (14) umfaßt, die sich längs der Erhitzungskammer (13) erstreckt und den Dampf über den gesamten Eingang der Kammer (13) verteilt.
3. Vorwärmer nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß er dem Ausgangsbereich des Dampfes der Erhitzungskammer (13) gegenüber keine Kondensationsrohre (23) aufweist.
4. Vorwärmer nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Rohre (21), die die Kammer (13) durchziehen, von platten (22) gehalten sind, die in einem Stück ausgebildet und orthogonal zu den Rohren (21) angeordnet sind.
EP83401463A 1983-07-13 1983-07-13 Speisewasservorwärmer mit Enthitzer insbesondere für thermische Kraftanlage Expired - Lifetime EP0131670B2 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT83401463T ATE25284T1 (de) 1983-07-13 1983-07-13 Speisewasservorwaermer mit enthitzer insbesondere fuer thermische kraftanlage.
DE8383401463T DE3369553D1 (en) 1983-07-13 1983-07-13 Feed-water preheater with a desuperheater, in particular for a thermal power plant
EP83401463A EP0131670B2 (de) 1983-07-13 1983-07-13 Speisewasservorwärmer mit Enthitzer insbesondere für thermische Kraftanlage
AU27214/84A AU565700B2 (en) 1983-07-13 1984-04-24 Feed-water heater
ZA845385A ZA845385B (en) 1983-07-13 1984-07-12 Feed-water heater,in particular for a thermal electric power station including a de-superheating zone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP83401463A EP0131670B2 (de) 1983-07-13 1983-07-13 Speisewasservorwärmer mit Enthitzer insbesondere für thermische Kraftanlage

Publications (3)

Publication Number Publication Date
EP0131670A1 EP0131670A1 (de) 1985-01-23
EP0131670B1 EP0131670B1 (de) 1987-01-28
EP0131670B2 true EP0131670B2 (de) 1991-01-02

Family

ID=8191422

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83401463A Expired - Lifetime EP0131670B2 (de) 1983-07-13 1983-07-13 Speisewasservorwärmer mit Enthitzer insbesondere für thermische Kraftanlage

Country Status (5)

Country Link
EP (1) EP0131670B2 (de)
AT (1) ATE25284T1 (de)
AU (1) AU565700B2 (de)
DE (1) DE3369553D1 (de)
ZA (1) ZA845385B (de)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE365685C (de) * 1922-12-21 Friedrich Werle Speisewasservorwaermer fuer Beheizung mit Abdampf
GB273803A (en) * 1926-04-07 1927-07-07 British Thomson Houston Co Ltd Improvements in and relating to feed water heating systems and apparatus therefor
GB931698A (en) * 1960-09-22 1963-07-17 Richardsons Westgarth & Co Improvements in or relating to feed-water heaters
CH628410A5 (de) * 1978-05-31 1982-02-26 Bbc Brown Boveri & Cie Speisewasservorwaermer.

Also Published As

Publication number Publication date
AU565700B2 (en) 1987-09-24
DE3369553D1 (en) 1987-03-05
EP0131670A1 (de) 1985-01-23
AU2721484A (en) 1985-01-17
ZA845385B (en) 1985-02-27
ATE25284T1 (de) 1987-02-15
EP0131670B1 (de) 1987-01-28

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