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US1501515A - Method and apparatus for evaporating liquids - Google Patents

Method and apparatus for evaporating liquids Download PDF

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Publication number
US1501515A
US1501515A US402320A US40232020A US1501515A US 1501515 A US1501515 A US 1501515A US 402320 A US402320 A US 402320A US 40232020 A US40232020 A US 40232020A US 1501515 A US1501515 A US 1501515A
Authority
US
United States
Prior art keywords
liquid
drum
vapour
partition
evaporating
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 - Lifetime
Application number
US402320A
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English (en)
Inventor
Testrup Nils
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.)
TECHNO CHEMICAL LAB Ltd
TECHNO-CHEMICAL LABORATORIES Ltd
Original Assignee
TECHNO CHEMICAL LAB Ltd
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 to GB5558/20A priority Critical patent/GB163793A/en
Application filed by TECHNO CHEMICAL LAB Ltd filed Critical TECHNO CHEMICAL LAB Ltd
Priority to US402320A priority patent/US1501515A/en
Priority to FR532049D priority patent/FR532049A/fr
Priority to NL18142A priority patent/NL10739C/xx
Application granted granted Critical
Publication of US1501515A publication Critical patent/US1501515A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
    • B01D1/222—In rotating vessels; vessels with movable parts
    • B01D1/228—In rotating vessels; vessels with movable parts horizontally placed cylindrical container or drum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/28—Evaporating with vapour compression

Definitions

  • This invention relates to improvements in connection with evaporation, distillation and similar operations, ⁇ and especially those of the lm type of Patent No. 1,150,713 of 1915 and has for its object to provide improved methods and means for effecting these operations.
  • the present invention consists in fluid evaporating or distilling rneans comprising 15 sheet metal surfaces for the evaporation, carrying upon one side a liquid lm and heated upon the otherside by the vapour of evaporated liquid after its temperature and pressure have been suitably raised, together with scale removing means in con-4 tact with and movable relative to the evaporating surfaces.
  • the invention also consists in a suitably enclosed rotating hollow drum evaporator u pon the outer surface of which drum the l1qu1d ⁇ to be evaporated is spread as a thin film, and to whichA surface is applied at a suitable point a scraping or brushing deviceV adapted to continuously remove any scale deposited during the evaporation eEected by the vapour of evaporated liquid after its temperature and pressure have been suitably raised.
  • the invention further consists in combinations of such drum evaporators in stages suitably chosen in relation to the rise of boiling point of the liquid or the economy of the evaporating surfaces or both.
  • the invention also consists in suitably corelating and separating the ingoing and outgoing fluids.
  • Figures 1 and 2 show a plain cylindrical drum dipping into the liquid.
  • Figures 3 and 4 show a similar drum, but arranged with a fee roller to apply the liquid to its surface.
  • Figures 5 and 6 show a corrugated drum which is wetted by dipping into the liquid.
  • Figures 7 and 8 show a corrugated drum with buckets for distributing the liquid over the surface thereof.
  • Figures 9 and 10 show a corrugated drum with feed)roller' distributing means
  • Figures 11 and 12 v show a corrugated drum with means for spraying the liquid over the surface thereof.
  • Figures 13, 14, 15 and 16 show the application of deposit removable means to the interior surfaces of the evaporating vessel.
  • the delivery e of the compressor d is connected through a suitable stuiing box 7" to the inside of the drum.
  • the drum is mounted on suitable .bearings Z1', b2 in the easing and provision is made ⁇ ,for withdrawing .25 ployed as ⁇ hereinafter described.
  • the lower part of the casing b is formed as a reservoir b3 for the ingoing liquid which is admitted by a float controlled valve h after being regeneratively heated by thel outgoin condensate in the heat interchanger i. he drum a at its lower side dips .intothe liquid in the reservoir b so that as it rotates its surface continuously carries. over a thin film of the liquid.
  • a scale removing device 7' is conveniently placed about the lowest part of the drum, and this device may beY arranged to act in p a partitioned ofi' part of the reservoir.
  • the scale removing device is shown as a simple revolving brush which is suitable ⁇ where the scale is soft, as is usually the case where a small difference in temperature is employed between the evaporating and heating surfaces.
  • a rubber or like strip suitably supported may be used or where necessary a metal scraper ma be emn some cases, especially where a large amount of scale forming material exists in the liquid to be evaporated, provision may be made for continuously removing the scale from the apparatus.
  • the drum is driven at such a s eed as ⁇ will provide for the maintenance o a uniform film of li uid thereon and as the liquid *is concentrate in the apparatus it is removed by means of the specific gravity controlled valve in the vessel Z positioned at the side of the casing b.
  • the vessel l coml municates with the bottom and the upper portion of the reservoir b3 b means of pipes Z Z2 and' it contains a oat m connected to the end of the lever m which controlsva valve giving access to the discharge p1 e n.
  • a metal scraper o which may be hinged to the top of a perforated' partitionzp is res'iliently pressed against the surfe/ee of the drum and acts to remove the scale or other .deposited matter therefrom. ,In other respects this arrangement is similar to the oneshown in Figures 1 and 2 and similar letters of reference for the various parts are employed therein.
  • the liquid level in this case is of such a height that itl will effectively wet or apply a film of liquid to ⁇ the sides of the disc members.
  • Scrapers 0 ⁇ 2 suitably connected to i the casing in a substantially vertical or other convenient position are provided for cleaning the sides of the discs and in other respects the apparatus resembles those previously described.
  • substantially horiz'ontal rollers p are provided for applying the liquid film to the disc surfaces, the rollers operating in channels or troughs s ⁇ con nected to the interior of the casing so as to lie betweenthe disc-like members and fed with the liquid by means of pipes t connected to the discharge of a liquid circulating pump u which draws its supply from the reservoir b3 in which a suitable level is maintained.
  • the liquid is applied to the heating surface by spray pipes 'z; receiving their ⁇ supply from a circulating pump u and scrapers o2 are provided for cleaning the surface adequately before the application 'of the liquid film thereto.
  • the drum may be in some cases of a hard and polished material, or it may again have a somewhat rough outer surface.
  • the surface of the drum may have metal gauze, or even absorbentinaterial uponit.
  • An apparatus which is quoted by way of example only was provided with an ordinary steel plate, bent and welded into a tube.
  • the fil-m in this case was picked up at the speed of about twenty revolutions per minute, and was a practically perfect film free from splashing or other inconvenience;
  • the apparatus may be the simplest conv DCvable for the purpose with nothing moving exceptthe revolution of the drums.
  • matter may be carried over in the form of vapour or in suspension in the vapour, which will deposit upon the interior surface of the evaporatingvessel and thus diminish its efliciency.
  • Scrapers as shown in Figures 13 and 14 may be applied to the interior surface of a plain cylindrical rotating drum, said Scrapers comprising guides 1 suspended from straps 2 Vriding upon the trunnion tube A1.
  • the said guide rods carrying adjustable brackets 3 having a longitudinal fulcrum bar 4 upon'which the scraper 5 is hinged.
  • the guide bars also carry slidably mounted weights 6 resting upon a longitudinal bar 7, attached bylevers S to the scraper 5 and by means of which the Scrapers are held in contact with the interior Surface of the drum.
  • Figures 15 and 16 show one section of corrugated drum with inte-rior deposit removal means which take the form of Scrapers 9 arranged in a substantially vertical direction ⁇ and supportedupon a stand pipe 10 reaching to near the bottom of the Section and communicating with the condensate outlet p pipe 11, by which the condensed vapour is removed from the apparatus.
  • Apparatus for carrying out a method of reducing the temperature difference required for transmitting heat through a part1t1 on 'forsvaporizing liquids by the heat of their own vapour raised in temperature by compression comprising in combination a moving heat transmitting partition, means for vapplying a thin ilm of liquid matter thereto, means for withdrawing, compressing and returning to the other side of said partition vapour evolved from said film and means for dislodging any, deposit formed upon the surfaces ofl said partition.
  • Apparatus for carrying out a method of reducing the temperaturedierence required for transmitting heat through a partition for vaporizing liquids by the heat of their own vapour raised' in temperature by compression comprising in combination a rotatable heat transmitting partition, means for applying a thin film of liquid matter thereto, a mechanical compressor for withdrawing vapour evolved from Said film and returning it at a higher temperature as heatingmedium for said partition and lmeans 'for keeping the partition free from deposit.
  • An ⁇ apparatus for expelling vapour from liquid material by the re-utilization of latent heat comprising a rotatable heat transmit-tingpartition, means for applying a film of liquid material onto the surface of said partition, means for collecting the vapour given off by the said film of material, means for raising the temperature of said vapour by compression and returning it as the heating medium to the other ,side of said partition and means for dislodging deposit from both sides of said partition.
  • An apparatus for economizing heat when evaporating liquid matter comprising in combination an enclosing chamber, a rotatable closed vessel in the form of a drm L' in. said chamber, a mechanical compressor,

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
US402320A 1920-02-24 1920-08-09 Method and apparatus for evaporating liquids Expired - Lifetime US1501515A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB5558/20A GB163793A (en) 1920-02-24 1920-02-24 Improvements relating to evaporation or distilling apparatus
US402320A US1501515A (en) 1920-02-24 1920-08-09 Method and apparatus for evaporating liquids
FR532049D FR532049A (fr) 1920-02-24 1921-02-23 Perfectionnements applicables aux appareils d'évaporation ou de distillation
NL18142A NL10739C (fr) 1920-02-24 1921-02-24

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5558/20A GB163793A (en) 1920-02-24 1920-02-24 Improvements relating to evaporation or distilling apparatus
US402320A US1501515A (en) 1920-02-24 1920-08-09 Method and apparatus for evaporating liquids

Publications (1)

Publication Number Publication Date
US1501515A true US1501515A (en) 1924-07-15

Family

ID=26239976

Family Applications (1)

Application Number Title Priority Date Filing Date
US402320A Expired - Lifetime US1501515A (en) 1920-02-24 1920-08-09 Method and apparatus for evaporating liquids

Country Status (4)

Country Link
US (1) US1501515A (fr)
FR (1) FR532049A (fr)
GB (1) GB163793A (fr)
NL (1) NL10739C (fr)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734023A (en) * 1956-02-07 hickman
US3136707A (en) * 1957-06-07 1964-06-09 Kenneth C D Hickman Phase separation barrier distillation apparatus
US3163587A (en) * 1960-12-13 1964-12-29 William F Champe Distillation apparatus for converting salt water into fresh water
US3190817A (en) * 1957-08-12 1965-06-22 Gen Electric Compression distillation apparatus
US3256926A (en) * 1963-11-26 1966-06-21 Combustion Eng Slurry drying device
US3282326A (en) * 1964-03-17 1966-11-01 Novo Terapeutisk Labor As Evaporating method and apparatus therefor of the rotating drum type
US3300393A (en) * 1962-07-25 1967-01-24 Franklin G Fisher Saline spray distillation within rotating solar heater
US3326266A (en) * 1963-10-21 1967-06-20 Vickers Armstrongs Ltd Apparatus for evaporating liquid to separate solid material from the liquid
US3343587A (en) * 1966-04-01 1967-09-26 William C Triplett Drum drying of liqueform substances
US3396088A (en) * 1964-04-01 1968-08-06 Rene G Levaux Rotary multi-compartment distillation drum having radially adjustable outlet to varythickness of liquid layer
US3489651A (en) * 1966-07-07 1970-01-13 Whirlpool Co Distillation apparatus utilizing frictional heating and compression of vapors
US3578071A (en) * 1968-04-11 1971-05-11 Univ Newcastle Concentric evaporation-condensation, rotary, thin film, heat transfer apparatus
US3634042A (en) * 1970-02-24 1972-01-11 Monsanto Co Polymerization vessel having readily removable working parts
US4504361A (en) * 1981-06-22 1985-03-12 Slovenska Vysoka Skola Technicka V Bratislava Block short-way evaporator with wiped-off film
US4790911A (en) * 1987-03-10 1988-12-13 Martin Parkinson Solvent evaporator
US4913777A (en) * 1987-12-11 1990-04-03 Martin Parkinson Solvent evaporator
US5409576A (en) * 1993-07-16 1995-04-25 Tleimat; Badawi Rotating evaporator device for the distillation or concentration of liquids
US5575889A (en) * 1993-02-04 1996-11-19 Rosenblad; Axel E. Rotating falling film evaporator
US5810975A (en) * 1992-02-12 1998-09-22 Sirven Apparatus for extracting solid residue from a fluid by evaporation
WO1998047592A1 (fr) * 1997-04-19 1998-10-29 Interotex Limited Agencements rotatifs de transfert de masse et/ou de chaleur
US20100243425A1 (en) * 2008-10-17 2010-09-30 Kjellman Samuel T Distillation System with Vertically Oriented Rotating Plates
CN110559670A (zh) * 2019-08-27 2019-12-13 北京国电龙源环保工程有限公司 一种石膏浆液泡沫制粉系统及其施工方法
WO2024234976A1 (fr) * 2023-05-12 2024-11-21 纽威科技有限公司 Système de traitement de concentration d'eaux usées à haute concentration

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL282083A (fr) * 1961-08-17

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734023A (en) * 1956-02-07 hickman
US3136707A (en) * 1957-06-07 1964-06-09 Kenneth C D Hickman Phase separation barrier distillation apparatus
US3190817A (en) * 1957-08-12 1965-06-22 Gen Electric Compression distillation apparatus
US3163587A (en) * 1960-12-13 1964-12-29 William F Champe Distillation apparatus for converting salt water into fresh water
US3300393A (en) * 1962-07-25 1967-01-24 Franklin G Fisher Saline spray distillation within rotating solar heater
US3326266A (en) * 1963-10-21 1967-06-20 Vickers Armstrongs Ltd Apparatus for evaporating liquid to separate solid material from the liquid
US3256926A (en) * 1963-11-26 1966-06-21 Combustion Eng Slurry drying device
DE1300065B (de) * 1963-11-26 1969-07-24 Combustion Eng Scheibentrockner
US3282326A (en) * 1964-03-17 1966-11-01 Novo Terapeutisk Labor As Evaporating method and apparatus therefor of the rotating drum type
US3396088A (en) * 1964-04-01 1968-08-06 Rene G Levaux Rotary multi-compartment distillation drum having radially adjustable outlet to varythickness of liquid layer
US3343587A (en) * 1966-04-01 1967-09-26 William C Triplett Drum drying of liqueform substances
US3489651A (en) * 1966-07-07 1970-01-13 Whirlpool Co Distillation apparatus utilizing frictional heating and compression of vapors
US3578071A (en) * 1968-04-11 1971-05-11 Univ Newcastle Concentric evaporation-condensation, rotary, thin film, heat transfer apparatus
US3634042A (en) * 1970-02-24 1972-01-11 Monsanto Co Polymerization vessel having readily removable working parts
US4504361A (en) * 1981-06-22 1985-03-12 Slovenska Vysoka Skola Technicka V Bratislava Block short-way evaporator with wiped-off film
US4790911A (en) * 1987-03-10 1988-12-13 Martin Parkinson Solvent evaporator
US4913777A (en) * 1987-12-11 1990-04-03 Martin Parkinson Solvent evaporator
US5810975A (en) * 1992-02-12 1998-09-22 Sirven Apparatus for extracting solid residue from a fluid by evaporation
US5575889A (en) * 1993-02-04 1996-11-19 Rosenblad; Axel E. Rotating falling film evaporator
US5409576A (en) * 1993-07-16 1995-04-25 Tleimat; Badawi Rotating evaporator device for the distillation or concentration of liquids
WO1998047592A1 (fr) * 1997-04-19 1998-10-29 Interotex Limited Agencements rotatifs de transfert de masse et/ou de chaleur
US6290216B1 (en) 1997-04-19 2001-09-18 Interotex Limited Rotary heat and/or mass transfer arrangements
US20100243425A1 (en) * 2008-10-17 2010-09-30 Kjellman Samuel T Distillation System with Vertically Oriented Rotating Plates
US8172988B2 (en) * 2008-10-17 2012-05-08 Distillation Technologies, Llc Distillation system with vertically oriented rotating plates
CN110559670A (zh) * 2019-08-27 2019-12-13 北京国电龙源环保工程有限公司 一种石膏浆液泡沫制粉系统及其施工方法
WO2024234976A1 (fr) * 2023-05-12 2024-11-21 纽威科技有限公司 Système de traitement de concentration d'eaux usées à haute concentration

Also Published As

Publication number Publication date
GB163793A (en) 1921-05-24
NL10739C (fr) 1924-03-15
FR532049A (fr) 1921-01-25

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