GB787143A - 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
GB787143A
GB787143A GB28541/55A GB2854155A GB787143A GB 787143 A GB787143 A GB 787143A GB 28541/55 A GB28541/55 A GB 28541/55A GB 2854155 A GB2854155 A GB 2854155A GB 787143 A GB787143 A GB 787143A
Authority
GB
United Kingdom
Prior art keywords
salts
regenerated
exchange
anion
exchanger
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
GB28541/55A
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 GB787143A publication Critical patent/GB787143A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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

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 caused to occur at predetermined places by subjecting the feed water 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 one or more alkali metals having an atomic weight greater than that of sodium. 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 potassium hydroxide. The anion exchange mass of a mixed-bed ion exchanger (preceded by separate cation and anion exchangers) may be regenerated with potassium hydroxide. A base exchanger followed by a vaporiser may be regenerated by potassium chloride or sulphate. 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 feedwater tank whence it is pumped back to the generator. The ion-exchange bed is regenerated with potassium hydroxide. In a precipitation softening plant followed by a vaporiser the raw water may be softened by precipitation of hardness-forming salts by potassium carbonate, phosphate or hydroxide.
GB28541/55A 1954-10-15 1955-10-06 Controlling the deposition of salts in the tube systems of steam generators Expired GB787143A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH787143X 1954-10-15
CH1136040X 1954-10-15

Publications (1)

Publication Number Publication Date
GB787143A true GB787143A (en) 1957-12-04

Family

ID=25738402

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28541/55A Expired GB787143A (en) 1954-10-15 1955-10-06 Controlling the deposition of salts in the tube systems of steam generators

Country Status (2)

Country Link
FR (1) FR1136040A (en)
GB (1) GB787143A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2171988A (en) * 1985-03-07 1986-09-10 Belco Pollution Control Corp Integral water demineralizer system and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2171988A (en) * 1985-03-07 1986-09-10 Belco Pollution Control Corp Integral water demineralizer system and method

Also Published As

Publication number Publication date
FR1136040A (en) 1957-05-07

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