GB935178A - Maintaining free from scale the heating surfaces of evaporators - Google Patents

Maintaining free from scale the heating surfaces of evaporators

Info

Publication number
GB935178A
GB935178A GB4291561A GB4291561A GB935178A GB 935178 A GB935178 A GB 935178A GB 4291561 A GB4291561 A GB 4291561A GB 4291561 A GB4291561 A GB 4291561A GB 935178 A GB935178 A GB 935178A
Authority
GB
United Kingdom
Prior art keywords
evaporator
acid
vapour
chest
conduit
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
GB4291561A
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.)
Aqua Chem Inc
Original Assignee
Aqua Chem Inc
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 Aqua Chem Inc filed Critical Aqua Chem Inc
Publication of GB935178A publication Critical patent/GB935178A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/06—Evaporators with vertical tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/28—Evaporating with vapour compression
    • 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
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/042—Prevention of deposits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Abstract

In the distillation of water or other scaleforming liquids in an evaporator 20 provided with tubes 32 surrounded by a chest 30, wherein the feed water is boiled in the tubes, the vapour is passed to compressor 40 and most of the compressed vapour is then used as a heating-medium in chest 30, the formation of heavy scale inside the tubes is prevented by passing a portion of the compressed vapour through line 82 into a vessel 80 which contains an acid, and forcing the acid through line 86 into the water which is being fed into the evaporator through conduit 22. Alternatively, the acid may be dissolved in some of the feed water and the concentrated solution is then allowed to diffuse slowly into the feed stream. Hydrochloric, sulphuric, acetic and citric acids and sodium bisulphate are specified as scale-treating materials, and reference is made to inhibitors for preventing the attack on metal by acid. The distillate is withdrawn from chest 30 via line 46, together with a mixture of gas and vapour. The vapour is condensed in vent-condenser 16, and the condensate p joins the main distillate flowing down line 52. The feed water enters the system through conduit 10, and first passes through preheater 12 where it passes in heat-exchange relation with the distillate and the blowdown, withdrawn from the evaporator by pump 58. The preheated feed flows through vent condenser 16 into <PICT:0935178/III/1> conduit 22, where it is treated with acid, and then enters the evaporator. The appropriate time to open the vent-valve on condenser 16 is indicated by pressure-gauges 110 and 112. Auxiliary heat can be supplied to the evaporator by means of the cooling liquid from the jacket of the diesel engine which drives compressor 40; the exhaust gases from the engine may also be used.
GB4291561A 1961-04-26 1961-11-30 Maintaining free from scale the heating surfaces of evaporators Expired GB935178A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10570661A 1961-04-26 1961-04-26

Publications (1)

Publication Number Publication Date
GB935178A true GB935178A (en) 1963-08-28

Family

ID=22307349

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4291561A Expired GB935178A (en) 1961-04-26 1961-11-30 Maintaining free from scale the heating surfaces of evaporators

Country Status (1)

Country Link
GB (1) GB935178A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2211432A (en) * 1987-10-23 1989-07-05 Zabrzanskie Gwarectwo Weglowe Desalinating water
GB2337210A (en) * 1998-05-14 1999-11-17 Aqua Pure Ventures Inc Mechanical vapour recompression separation process
US6355145B1 (en) 1997-01-14 2002-03-12 Aqua-Pure Ventures, Inc. Distillation process with reduced fouling
WO2007090583A1 (en) * 2006-02-11 2007-08-16 H2O Gmbh Apparatus for processing process or industrial wastewaters
US7428926B2 (en) 1999-05-07 2008-09-30 Ge Ionics, Inc. Water treatment method for heavy oil production
US7438129B2 (en) 1999-05-07 2008-10-21 Ge Ionics, Inc. Water treatment method for heavy oil production using calcium sulfate seed slurry evaporation
US7681643B2 (en) 1999-05-07 2010-03-23 Ge Ionics, Inc. Treatment of brines for deep well injection
US20140374235A1 (en) * 2002-11-13 2014-12-25 DEAK Products Limited Partnership Liquid Pumps with Hermetically Sealed Motor Rotors
RU2775695C1 (en) * 2018-02-12 2022-07-06 Общество с ограниченной ответственностью "Баромембранная технология" Method for washing tubes in film evaporator from sediments formed as a result of water evaporation from saline solution
CN115215397A (en) * 2022-07-26 2022-10-21 杨彩玉 Evaporation concentration scale removal device that waste water was used

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2211432A (en) * 1987-10-23 1989-07-05 Zabrzanskie Gwarectwo Weglowe Desalinating water
US6355145B1 (en) 1997-01-14 2002-03-12 Aqua-Pure Ventures, Inc. Distillation process with reduced fouling
GB2337210A (en) * 1998-05-14 1999-11-17 Aqua Pure Ventures Inc Mechanical vapour recompression separation process
US7849921B2 (en) 1999-05-07 2010-12-14 Ge Ionics, Inc. Water treatment method for heavy oil production
US7428926B2 (en) 1999-05-07 2008-09-30 Ge Ionics, Inc. Water treatment method for heavy oil production
US7438129B2 (en) 1999-05-07 2008-10-21 Ge Ionics, Inc. Water treatment method for heavy oil production using calcium sulfate seed slurry evaporation
US7681643B2 (en) 1999-05-07 2010-03-23 Ge Ionics, Inc. Treatment of brines for deep well injection
US7717174B2 (en) 1999-05-07 2010-05-18 Ge Ionics, Inc. Water treatment method for heavy oil production using calcium sulfate seed slurry evaporation
US7967955B2 (en) 1999-05-07 2011-06-28 Ge Ionics, Inc. Water treatment method for heavy oil production
US20140374235A1 (en) * 2002-11-13 2014-12-25 DEAK Products Limited Partnership Liquid Pumps with Hermetically Sealed Motor Rotors
WO2007090583A1 (en) * 2006-02-11 2007-08-16 H2O Gmbh Apparatus for processing process or industrial wastewaters
CN101384322B (en) * 2006-02-11 2010-12-15 H2O有限公司 Apparatus for processing process or industrial wastewaters
US8206558B2 (en) 2006-02-11 2012-06-26 H20 Gmbh Apparatus for processing process or industrial wastewaters
RU2775695C1 (en) * 2018-02-12 2022-07-06 Общество с ограниченной ответственностью "Баромембранная технология" Method for washing tubes in film evaporator from sediments formed as a result of water evaporation from saline solution
CN115215397A (en) * 2022-07-26 2022-10-21 杨彩玉 Evaporation concentration scale removal device that waste water was used
CN115215397B (en) * 2022-07-26 2024-05-03 深圳市佳和三英精密机械有限公司 Evaporation concentration scale removal device for wastewater

Similar Documents

Publication Publication Date Title
GB641429A (en) Improvements in and relating to the distillation of water
GB762083A (en) Improvements relating to the evaporation or distillation of water
NO157887C (en) METHOD AND APPARATUS FOR CONTINUOUS CONDENSATION OF A STEAM COMPONENT IN A GAS MIXTURE.
GB935178A (en) Maintaining free from scale the heating surfaces of evaporators
GB367660A (en) Process for the production of ammonium nitrate
GB410652A (en) Process for evaporating, concentrating and distilling
GB1227676A (en) Improvements in or relating to the combined elimination of refuse and sewage sludge
GB941063A (en)
GB1347884A (en) Process for cracking sulphuric acid
US838195A (en) Process of distillation.
US3461041A (en) Vapor compression distillation of chemically treated degassed saline water
GB1402116A (en) Methods and apparatus for the distillation of liquids
US1932903A (en) Process of and apparatus for liquefying gases
GB803849A (en) Improvements in the recovery of pure dimethyl terephthalate
GB669928A (en) Improvements in and relating to compression distillation plant
GB1361345A (en) Distillation of liquids
US2432136A (en) Method for concentrating aqueous solutions of hygroscopic liquids
GB2096124A (en) Production of ammonium nitrate
US1872829A (en) Method and apparatus for the manufacture of concentrated ammonia liquor
SU76021A1 (en) The method of processing acidic waters
GB423328A (en) Improvements in the removal and recovery of benzene and naphthalene from gases particularly coal distillation gases
SU461596A1 (en) The method of obtaining sulfuric anhydride
GB843978A (en) Improvements in or relating to the separation of an absorbed liquid component from an absorption liquid
GB567103A (en) Improvements in or relating to apparatus for use in distilling liquids, particularlysea water, particularly for ships&#39; lifeboats and the like
GB617339A (en) An improved method of and means for distilling sea water