GB787099A - Controlling the deposition of salts in the tube systems of steam generators - Google Patents

Controlling the deposition of salts in the tube systems of steam generators

Info

Publication number
GB787099A
GB787099A GB29749/55A GB2974955A GB787099A GB 787099 A GB787099 A GB 787099A GB 29749/55 A GB29749/55 A GB 29749/55A GB 2974955 A GB2974955 A GB 2974955A GB 787099 A GB787099 A GB 787099A
Authority
GB
United Kingdom
Prior art keywords
salts
regenerated
exchange
ammonium
anion
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
GB29749/55A
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
Gebrueder Sulzer AG
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, Gebrueder Sulzer AG filed Critical Sulzer AG
Publication of GB787099A publication Critical patent/GB787099A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F22D11/00—Feed-water supply not provided for in other main groups
    • F22D11/006—Arrangements of feedwater cleaning with a boiler
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/0082—Regulation; Control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/02—Softening water by precipitation of the hardness
    • C02F5/025—Hot-water softening devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B29/00—Steam boilers of forced-flow type
    • F22B29/06—Steam boilers of forced-flow type of once-through type, i.e. built-up from tubes receiving water at one end and delivering superheated steam at the other end of the tubes
    • F22B29/10—Steam boilers of forced-flow type of once-through type, i.e. built-up from tubes receiving water at one end and delivering superheated steam at the other end of the tubes operating with sliding point of final state of complete evaporation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)

Abstract

The deposition of salts in the tube system of a forced flow steam generator which normally operates at or above the critical point of the working medium is avoided or is caused to occur at predetermined places by subjecting the feedwater to a so-called total salts elimination treatment such that its residual salts content after the treatment consists predominantly of one or more compounds of ammonium. The treatment may comprise conventional cation exchange followed by anion exchange but in which the anion exchanger (or at least the last anion exchanger) is regenerated with ammonium hydroxide. The anion exchange mass of a mixed bed ion exchanger (preceded by separate cation and anion exchangers) may be regenerated with ammonium hydroxide. A base exchanger followed by a vaporiser may be regenerated with an ammonium compound. In a complete steam power plant steam passes from a forced flow generator to a turbine and thence to a condenser. The condensate passes through a mixed-bed ion-exchange plant to a feed water tank whence it is pumped back to the generator. The ion-exchange bed is regenerated with ammonium hydroxide. In a precipitation softening plant followed by a vaporizer the raw water may be softened by precipitation of hardness-forming salts by ammonium carbonate or hydroxide.
GB29749/55A 1954-11-01 1955-10-18 Controlling the deposition of salts in the tube systems of steam generators Expired GB787099A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH787099X 1954-11-01

Publications (1)

Publication Number Publication Date
GB787099A true GB787099A (en) 1957-12-04

Family

ID=4536663

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29749/55A Expired GB787099A (en) 1954-11-01 1955-10-18 Controlling the deposition of salts in the tube systems of steam generators

Country Status (2)

Country Link
CH (1) CH329740A (en)
GB (1) GB787099A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984004132A1 (en) * 1983-04-08 1984-10-25 Solar Turbines Inc Water treatment systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984004132A1 (en) * 1983-04-08 1984-10-25 Solar Turbines Inc Water treatment systems

Also Published As

Publication number Publication date
CH329740A (en) 1958-05-15

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