GB819106A - Improvements in or relating to the operation of a heat exchanger in a steam generator - Google Patents

Improvements in or relating to the operation of a heat exchanger in a steam generator

Info

Publication number
GB819106A
GB819106A GB2156657A GB2156657A GB819106A GB 819106 A GB819106 A GB 819106A GB 2156657 A GB2156657 A GB 2156657A GB 2156657 A GB2156657 A GB 2156657A GB 819106 A GB819106 A GB 819106A
Authority
GB
United Kingdom
Prior art keywords
steam
pipe
sections
section
outlet pipe
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
GB2156657A
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.)
Sulzer AG
Original Assignee
Sulzer AG
Sulzer Freres 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 Sulzer AG, Sulzer Freres SA filed Critical Sulzer AG
Publication of GB819106A publication Critical patent/GB819106A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/13—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures
    • G05D23/138—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures for gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B35/00—Control systems for steam boilers
    • F22B35/06—Control systems for steam boilers for steam boilers of forced-flow type
    • F22B35/10—Control systems for steam boilers for steam boilers of forced-flow type of once-through type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B35/00—Control systems for steam boilers
    • F22B35/06—Control systems for steam boilers for steam boilers of forced-flow type
    • F22B35/10—Control systems for steam boilers for steam boilers of forced-flow type of once-through type
    • F22B35/108—Control systems for steam generators having multiple flow paths
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22G—SUPERHEATING OF STEAM
    • F22G3/00—Steam superheaters characterised by constructional features; Details of component parts thereof
    • F22G3/007—Headers; Collectors, e.g. for mixing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22G—SUPERHEATING OF STEAM
    • F22G5/00—Controlling superheat temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22G—SUPERHEATING OF STEAM
    • F22G5/00—Controlling superheat temperature
    • F22G5/20—Controlling superheat temperature by combined controlling procedures

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)

Abstract

819,106. Water-tube steam boilers. SULZER FRERES S. A. July 8, 1957 [Feb. 27, 1957], No. 21566/57. Classes 123(2) and 123(3) A steam generator has three series-connected superheater stages 1, 2, 3 each having a radiantly-heated section S1, S2, S3 and a convection-heated section B1, B2, B3 respectively, the two sections in each stage being connected in parallel. The total amount of steam produced in the generator flows to the first stage 1 through a rotary valve D1 which divides the steam between the sections B1, S1. Temperature measuring means T1a, T1b are provided at the outlets of sections S1, B1 respectively and transmit to a regulator R1 in which the temperatures are compared. If there is a difference in temperature (due, for example to a rise in load when the steam from section S1 will drop in temperature whilst that from section B1 will rise) the rotary valve D1 is adjusted by the regulator to alter the flow in the sections B1, S1 until the outlet steam temperatures both assume the same value. Downstream of the temperature measuring means T1a, T1b the divided flows of steam are reunited in a mixer M1 and passed successively through rotary valves D2, D3 to the next superheater stages where the process is repeated. Fig. 2 shows the mixer M1. The outlet pipe b from the section S1 is connected by a T-junction to a common outlet pipe a while the outlet pipe c from section B1 passes through the wall of the pipe b into the interior of the pipe a and carriers at its end guide blades e which impart a whirling motion to the steam and a centrally disposed body f which deflects the steam outwardly. Guide plates g giving an opposite direction of whirl are mounted in the annular space d between the pipe a and the end of the pipe c the two streams being thoroughly mixed within the pipe a. The method can be applied to the economizers, evaporating sections or superheating sections of forced flow or natural circulation boilers.
GB2156657A 1957-02-27 1957-07-08 Improvements in or relating to the operation of a heat exchanger in a steam generator Expired GB819106A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM33382A DE1138795B (en) 1957-02-27 1957-02-27 Arrangement for regulating the final temperature of the working medium of a heat exchanger, in particular a once-through steam generator, made up of several heating surface groups connected in series and heated by means of gaseous means

Publications (1)

Publication Number Publication Date
GB819106A true GB819106A (en) 1959-08-26

Family

ID=7301749

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2156657A Expired GB819106A (en) 1957-02-27 1957-07-08 Improvements in or relating to the operation of a heat exchanger in a steam generator

Country Status (3)

Country Link
BE (1) BE564306A (en)
DE (1) DE1138795B (en)
GB (1) GB819106A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008009686A2 (en) * 2006-07-17 2008-01-24 Ansaldo Energia S.P.A. System and method for controlling thermodynamic parameters of a steam

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR758288A (en) * 1932-07-12 1934-01-13 Cie Des Surchauffeurs Further training in overheating installations
US2109840A (en) * 1934-06-12 1938-03-01 Superheater Co Ltd Control of heat absorption
DE767278C (en) * 1940-09-28 1952-04-07 Duerrwerke A G Forced once-through steam generator
DE911264C (en) * 1951-04-22 1954-05-13 Siemens Ag Forced current steam generator with radiant heating surface

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008009686A2 (en) * 2006-07-17 2008-01-24 Ansaldo Energia S.P.A. System and method for controlling thermodynamic parameters of a steam
EP1892468A1 (en) * 2006-07-17 2008-02-27 Ansaldo Energia S.P.A. System and method for controlling thermodynamic parameters of a steam
WO2008009686A3 (en) * 2006-07-17 2009-03-12 Ansaldo Energia Spa System and method for controlling thermodynamic parameters of a steam

Also Published As

Publication number Publication date
DE1138795B (en) 1962-10-31
BE564306A (en)

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