GB982017A - Improvements in or relating to the evaporation of liquid films - Google Patents

Improvements in or relating to the evaporation of liquid films

Info

Publication number
GB982017A
GB982017A GB7391/62A GB739162A GB982017A GB 982017 A GB982017 A GB 982017A GB 7391/62 A GB7391/62 A GB 7391/62A GB 739162 A GB739162 A GB 739162A GB 982017 A GB982017 A GB 982017A
Authority
GB
United Kingdom
Prior art keywords
members
heat
liquid
conduit
steam
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
GB7391/62A
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.)
General Electric Co
Original Assignee
General Electric Co
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
Priority claimed from US44146A external-priority patent/US3099607A/en
Priority claimed from US92349A external-priority patent/US3175962A/en
Application filed by General Electric Co filed Critical General Electric Co
Publication of GB982017A publication Critical patent/GB982017A/en
Expired legal-status Critical Current

Links

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
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
    • F28F13/185—Heat-exchange surfaces provided with microstructures or with porous coatings
    • F28F13/187—Heat-exchange surfaces provided with microstructures or with porous coatings especially adapted for evaporator surfaces or condenser surfaces, e.g. with nucleation sites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/06—Evaporators with vertical tubes
    • B01D1/065—Evaporators with vertical tubes by film evaporating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/06—Evaporators with vertical tubes
    • B01D1/12—Evaporators with vertical tubes and forced circulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/26—Multiple-effect evaporating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/28—Evaporating with vapour compression
    • B01D1/2803—Special features relating to the vapour to be compressed
    • B01D1/2806—The vapour is divided in at least two streams and only a part of the vapour is compressed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/28—Evaporating with vapour compression
    • B01D1/2881—Compression specifications (e.g. pressure, temperature, processes)
    • 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
    • C02F1/045—Treatment of water, waste water, or sewage by heating by distillation or evaporation for obtaining ultra-pure water
    • 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
    • C02F1/08—Thin film 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
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/16—Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
    • 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
    • F28D3/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium flows in a continuous film, or trickles freely, over the conduits
    • F28D3/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium flows in a continuous film, or trickles freely, over the conduits with tubular conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)

Abstract

982,017. Evaporating liquid in film-form; distilling sea water. GENERAL ELECTRIC CO. Feb. 26, 1962 [Feb. 28, 1961], No. 7391/62. Addition to 967,929. Heading B1B. Liquid such as sea water is evaporated by passing it in the form of a film down the inner surface of heat-exchange members 4, which are surrounded by a heating-jacket 5, the members 4 being designed so that the cross-sectional area of the vapour-passage 42 increases in the direction of flow whereby the vapour-velocity is maintained at an approximately constant value as it passes through the passage. The concentrated liquid which collects in sump 15 may be withdrawn through conduit 30 or it may be recirculated through conduit 18, together with fresh feed introduced through conduit 16, to chamber 13 which distributes the liquid to the heat-exchange members. Part of the steam, discharged from the lower ends of heat-exchange members, may be passed via conduits 23 and 24 to a compressor (not shown), and the compressed steam is then introduced through inlet 6 into jacket 5 for use as heating-medium, the condensate, i.e potable water, being withdrawn through outlet 7. The outside surfaces 41 and 41<SP>1</SP> of heat-exchange members 4 have drainage grooves in order to increase the efficiency of steam-condensation. Part of the steam from the lower chamber may be passed, via compressor 27 and conduit 29, to chamber 13 so that it flows down inside the members 4, and assists in maintaining a thin film of liquid on the inner surface of the members. In place of the heat-exchange members shown in Fig. 2, there may be employed cylindrical tubes in which are mounted conical baffles which taper in a downward direction. The outer surface of the tubes may be treated with a chemical to promote dropwise condensation.
GB7391/62A 1960-07-20 1962-02-26 Improvements in or relating to the evaporation of liquid films Expired GB982017A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US44146A US3099607A (en) 1960-07-20 1960-07-20 Vapor recirculation distillation process and apparatus
US92349A US3175962A (en) 1961-02-28 1961-02-28 Falling film evaporator

Publications (1)

Publication Number Publication Date
GB982017A true GB982017A (en) 1965-02-03

Family

ID=26721215

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7391/62A Expired GB982017A (en) 1960-07-20 1962-02-26 Improvements in or relating to the evaporation of liquid films

Country Status (3)

Country Link
CH (1) CH451980A (en)
DE (1) DE1444338A1 (en)
GB (1) GB982017A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1997545A2 (en) * 2007-05-28 2008-12-03 Hitachi Plant Technologies, Ltd. Controlling condensation in combination with evaporation
CN106512451A (en) * 2016-12-30 2017-03-22 吉林惠利现代轻工装备有限公司 Heating and evaporating device
CN111634969A (en) * 2020-05-30 2020-09-08 联合瑞升（北京）科技有限公司 High vacuum maintenance system for salt-containing wastewater treatment and operation method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05115857A (en) * 1991-10-28 1993-05-14 Toshiba Corp Waste washing water treatment and cleaning equipment
DE102016123512A1 (en) * 2016-12-06 2018-06-07 Coolar UG (haftungsbeschränkt) evaporator device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1997545A2 (en) * 2007-05-28 2008-12-03 Hitachi Plant Technologies, Ltd. Controlling condensation in combination with evaporation
CN106512451A (en) * 2016-12-30 2017-03-22 吉林惠利现代轻工装备有限公司 Heating and evaporating device
CN111634969A (en) * 2020-05-30 2020-09-08 联合瑞升（北京）科技有限公司 High vacuum maintenance system for salt-containing wastewater treatment and operation method

Also Published As

Publication number Publication date
CH451980A (en) 1968-05-15
DE1444338A1 (en) 1969-01-09

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