US3610880A - Water vaporizer unit - Google Patents

Water vaporizer unit Download PDF

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Publication number
US3610880A
US3610880A US845966A US3610880DA US3610880A US 3610880 A US3610880 A US 3610880A US 845966 A US845966 A US 845966A US 3610880D A US3610880D A US 3610880DA US 3610880 A US3610880 A US 3610880A
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United States
Prior art keywords
water
vessel
cup
unit
cavity
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
US845966A
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English (en)
Inventor
Oskar Alfred Kreiberg
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Individual
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Individual
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Publication of US3610880A publication Critical patent/US3610880A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/18—Air-humidification, e.g. cooling by humidification by injection of steam into the air
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
    • A61M11/04—Sprayers or atomisers specially adapted for therapeutic purposes operated by the vapour pressure of the liquid to be sprayed or atomised
    • A61M11/041—Sprayers or atomisers specially adapted for therapeutic purposes operated by the vapour pressure of the liquid to be sprayed or atomised using heaters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
    • A61M11/04—Sprayers or atomisers specially adapted for therapeutic purposes operated by the vapour pressure of the liquid to be sprayed or atomised
    • A61M11/041—Sprayers or atomisers specially adapted for therapeutic purposes operated by the vapour pressure of the liquid to be sprayed or atomised using heaters
    • A61M11/042—Sprayers or atomisers specially adapted for therapeutic purposes operated by the vapour pressure of the liquid to be sprayed or atomised using heaters electrical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
    • F24F6/025—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using electrical heating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters

Definitions

  • the invention relates to an immersion-type water-vaporizer unit having a vaporizing space comprising an electric heater for vaporizing water, an outlet opening for the steam and a narrow connection tube connecting the vaporizing space with a water reservoir separated from the vaporizing space by means of a double wall.
  • the steam leaves the device in a well-defined jet having a given direction. This is obtained by making the outlet opening comparatively narrow in which case a superatmospheric pressure occurs in the vaporizing space.
  • the vaporizing generally takes place in a pulsating or cyclical manner because at first a strong vaporizing takes place whereby the pressure in the vaporizing space rises and water and, as the case may be, also steam is forced to the water reservoir through the connecting opening which is constituted by a hole in a wall between the vaporizing space and the reservoir.
  • the vaporizing and thereby also the prasure in the vaporizing space decreases, which has the effeet that water will again flow to the vaporizing space through the connecting opening.
  • a vaporizing unit is aimed at in which the steam is sent out in a well-defined directional jet and which has nevertheless a high efficiency.
  • the vaporizing unit according to the invention is characterized in that the connecting hole has a substantially greater length than the one necessary to establish connection between the vaporizing space and the water reservoir and that the size of the steam outlet opening is so adapted to the diameter and length of the connecting tube that during normal operation of the vaporizing unit no water flows from the vaporizing space to the water reservoir.
  • the long narrow connecting tube acts as a brake on the pulsating or cyclical vaporizing process.
  • the long narrow connecting tube would not in itself be sufficient to give a substantial increase of the efficiency if heat could still be transferred directly through the wall of the vaporizing space to the water reservoir, so as is the case in known devices producing a well-defined vapor jet. Therefore the measure of the long narrow tube has to be combined with the good heat insulation of the wall of vaporizing space obtained by the means of the hermetic sealing.
  • a thermostat In the cavity of the double wall a thermostat may be placed. It serves to disconnect the heating element in the case where there is no more water in the vaporizing space and the temperature therefore rises strongly.
  • the heating element may be surrounded by a tube and this tubemay extend into the cavity of the double wall.
  • this tube may extend into the cavity of the double wall.
  • An improved heat insulation and a further reduction of the oxidization of metal parts may be obtained by providing a partial vacuum in the cavity of the double wall.
  • the remaining gas in the cavity of the double wall may be an inactive gas whereby corrosion of the inner surfaces of the double wall as well as of metal parts arranged therein or being in connection with the cavity may be completely avoided.
  • the thermostat may be so designed that it disconnects the current to the heating element when the temperature is a certain number of degrees above the boiling point of water and again connects the heating element to the supply current when the temperature has fallen some degrees.
  • the thermostat When there is no more water in the vaporizing space and the temperature therefore abruptly rises strongly above the boiling point of water the thermostat will disconnect the heating element so that no harmful temperatures occur.
  • the thermostat When the temperature has thereafter fallen some degrees the thermostat will again supply current to the heating element, the temperature of which rises until the thermostat again disconnects etc. Consequently the temperature of the heating element and thereby also of the surroundings thereof, i.e. of the places where boiler scale is likely to deposit, will oscillate up and down for which reason the boiler scale will fly off. Thus an automatic descaling of the device is obtained.
  • This embodiment has the further advantage over the known devices where a permanent interruption of the current occurs when there is no more water in the device.
  • a member is required which has to be operated from outside when the device after having been supplied with water is to be put in operation again and this member can only with difficulty be carried through the wall of the vessel in a hermetical way.
  • Such an operating member is not necessary in the above mentioned embodiment of the device according to the invention.
  • the vaporizer unit shown is in a manner which is not indicated in details arranged in a water reservoir 1.
  • the immersion vaporizer unit comprises a double-walled vessel means comprised of an outer cup-shaped container part 2 and an inner cup-shaped container part 3 surrounding a vaporizing space 4 which via a long narrow tube 5 is in connection with the reservoir.
  • the outer and inner vessel parts are connected to each other via a heat-resistant insulating material 6 whereby a heat bridge between the two vessel parts is avoided.
  • the tube 5 may be carried through the vessel walls in a heat insulating manner.
  • the vessel is closed by means of a lid 7 having an outlet stub 8 in which there is a narrow passage for the vapor.
  • the lid may be tightened relative to the vessel by means of an O-ring 9 and may serve as a safety valve.
  • an electric heating element 10 which via leads 11 and 12 is connected to one part 13 of a plug-and-socket connection and to a thermo stat 14 respectively.
  • the other part 15 of the plug-and-socket connection is via a cord in connection with a plug 16 and may furthermore have an indicator lamp 17 which is adapted to glow either as long as current is supplied to the heating element or as long as the current to the heating element is disconnected by the thermostat 14.
  • the part 13 which is arranged in a hermetically tight manner in the wall of the vessel part 2 has a collar 18 in which a projection 19 on the part 15 fits.
  • the collar 18 and the projection 19 may be tightened in relation to each other by means of an O-ring
  • water will flow through the tube until the water levels are in the same height within and outside the unit.
  • a superatmospheric pressure occurs which has the effect that vapor is ejected through the stub which is a narrow elongated outlet means 8 and that water flows through the tube 5 to the reservoir 1.
  • the water level in the vaporizing space 4 now falls until an equilibrium is established by which the superatmospheric pressure in the space 4 corresponds to the difference between the water levels inside and outside the vaporizer unit and by which the amount of steam produced corresponds to the amount which escapes through the stub 8.
  • the amount of water which is transformed into vapor is substituted by new water flowing from the reservoir through the tube 5 to the vaporizing space 4.
  • the hermetically closed cavity of the double wall will give an effective protection against corrosion of the inner surfaces of the vessel as well as of parts e.g. the thermostat 14 arranged in the cavity.
  • the heating element 10 comprises a tube and if this tube extends into the cavity of the double wall the said protection against corrosion will be extended to the heating element. With a view to eliminating completely the corrosion, the remaining gas in the cavity of the double wall may be an inactive gas.
  • the end of the tube 5 situated in the vaporizer unit may be surrounded by a bushing 20 made of a plastic material precluding the deposition of boiler scale. If desired, the whole tube 5 may be lined with such a material.
  • the thermostat 14 may be so designed that it disconnects the current to the heating element 10 when the temperature has risen to a certain number of degrees above the boiling point of water e.g. to ll0-ll5 C. and again supplies the heating element with current when the temperature thereafter has fallen some degrees.
  • the thermostat does not function until there is no more water in the vaporizing space 4 e.g. because the water level in the reservoir 1 is beneath the tube 5.
  • the temperature will oscillate between e.g. 105 and 115 C. the heating element being only supplied with current in short periods before the thermostat again interrupt the current. This oscillating temperature of the heating element which takes place at a temperature level which is not harmful has the effeet that boiler scale on the heating element and the surroundings comes off whereafter it may be shaken out of the vessel after the removal of the lid 7.
  • a depression 21 is provided in which a few drops of an air-cleaning or perfume-producing liquid may be poured.
  • the vaporizer unit which is primarily intended as an air humidifier for living rooms may, if so desired, be supplied with water from a water tank or directly from a water conduit, the supplying being regulated by means of a float mechanism or another type of level-regulating mechanism.
  • the vaporizer unit according to the invention may also be used for other purposes e.g. as an inhalation device, and egg boiler or a water heater.
  • the tube 5 may have any cross section. This also applies to the vessel 2,3 which may e.g. have circular or polygonal cross section. Furthermore the vessel may be cylindrical as shown on the drawing or it may be e.g. conical.
  • the heating element 10 need not be arranged in the vaporizing space 4 as shown on the drawing. It may be embedded in the bottom of the vaporizing space or situated in a double bottom or it may be arranged in the cavity of the double wall.
  • the tube 5 which should be long and narrow need not project as far into the vaporizing space 4 as shown on the drawing. Instead it may project a longer distance outside the vessel. A part of the tube may be substituted by a hose.
  • the vessel parts 2 and 3 may be made from stainless steel but also other materials may be used.
  • a vaporizer unit for immersion in a water reservoir comprising;
  • vessel means having side and bottom portions for accommodating water to be vaporized
  • heating means operatively associated with said vessel means for heating said accommodated water to produce water vapor
  • a narrow, elongated outlet means for said water vapor associated with said vessel means said outlet means having a cross-sectional area substantially smaller than the crosssectional area of said vessel means, said outlet means directing the water vapor out of said vessel means in a well-defined, directional jet, and narrow, straight, elongated connection tube extending from inside of said vessel means to outside of said vessel means for admitting water from said reservoir to said vessel means to be vaporized, said tube being positioned at an oblique angle with respect to said bottom portion of said vessel means with the end of the tube inside said vessel means being elevated with respect to the end of the tube outside of said vessel means, and with the greater part of the length of said tube being positioned inside of said vessel means.
  • said vessel means comprises a first cup-shaped container having side and bottom walls enclosing a water-vaporizing chamber, a second cup-shaped container having side and bottom walls spaced from and surrounding said walls of said first cup-shaped container, a cavity being defined between the spaced apart walls of said first and second cup-shaped containers and means for hermetically sealing the cavity between the walls of said first and second cup-shaped container.
  • said vessel means further includes a top portion which connects the sidewalls of said first cup-shaped container, said narrow, elongated outlet means being located in said top portion.
  • said thermostat being electrically connected to said heating means to maintain the temperature of said heating means within a predetermined range.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Air Humidification (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
US845966A 1968-07-31 1969-07-30 Water vaporizer unit Expired - Lifetime US3610880A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK369468 1968-07-31

Publications (1)

Publication Number Publication Date
US3610880A true US3610880A (en) 1971-10-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
US845966A Expired - Lifetime US3610880A (en) 1968-07-31 1969-07-30 Water vaporizer unit

Country Status (7)

Country Link
US (1) US3610880A (nl)
BE (1) BE736700A (nl)
CH (1) CH493259A (nl)
DE (1) DE1938465C3 (nl)
FR (1) FR2014071A1 (nl)
GB (1) GB1273795A (nl)
NL (1) NL167097C (nl)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3743780A (en) * 1972-05-01 1973-07-03 N Camp Boiling chamber for steam generator
US3800528A (en) * 1971-11-08 1974-04-02 Gamell J Ind Inc Power generating system
US3961893A (en) * 1974-10-17 1976-06-08 Hydrotherm Corporation Steam disinfector for contact lenses
US4028444A (en) * 1974-03-25 1977-06-07 Chemetron Corporation Humidifier and automatic control system therefor
US4784033A (en) * 1986-01-22 1988-11-15 Milford Products Corporation Triple chip ground carbide tip bandsaw blade with ductile filler
GB2227821A (en) * 1989-01-26 1990-08-08 Ward Bekker Sales Limited Devices for generating steam; wallpaper strippers
US5456742A (en) * 1993-09-09 1995-10-10 Holmes Products Corp. Electric circuit having a convenience outlet for use in a humidifier or an air purifier
US5673360A (en) * 1995-09-11 1997-09-30 Scripps; J. Sebastian Travel Humidifier
US20150056128A1 (en) * 2012-04-26 2015-02-26 Showa Denko K.K. Evaporative gas generating device, method for producing evaporative gas, hydrogen bromide production device, and method for producing hydrogen bromide
EP3488717A1 (en) * 2005-07-19 2019-05-29 JT International SA Method and system for vaporization of substance
US20190353397A1 (en) * 2017-11-20 2019-11-21 Atlantic, Gulf & Pacific Company Of Manila, Inc. Floating storage and regas vessels comprising a marinized vaporizer unit, methods of making and using same, methods for processing lng, and lng and/or natural gas produced by any of the forgoing
US11554925B2 (en) * 2018-11-26 2023-01-17 Kinboshi Inc. Method and system for gas transfer type fine powder quantitative feeding
US11647783B2 (en) 2005-07-19 2023-05-16 Juul Labs, Inc. Devices for vaporization of a substance
US11904089B2 (en) 2011-08-16 2024-02-20 Juul Labs, Inc. Devices for vaporization of a substance

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2936895C2 (de) * 1979-09-12 1982-03-11 Siemens AG, 1000 Berlin und 8000 München Vorrichtung zur Steuerung des elektrischen Heizstromes eines Verdampfers
DE3308802A1 (de) * 1983-03-12 1984-09-13 Adolf Ruoff GmbH, Kunststoff-Preß- und Spritzwerk, 5608 Radevormwald Inhalator mit einer vorrichtung zur wasserdampferzeugung

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US620086A (en) * 1899-02-21 L casper
US1430548A (en) * 1922-01-06 1922-10-03 Oliver D Hogue Humidifying apparatus
US1909973A (en) * 1931-03-02 1933-05-23 Carroll E Lewis Vaporizer
US2014836A (en) * 1933-09-16 1935-09-17 Commercial Products Company Portable device for producing and delivering steam and hot water under pressure
US2211407A (en) * 1938-11-03 1940-08-13 Mayflower Lewis Corp Portable vaporizer
US2443417A (en) * 1944-10-10 1948-06-15 John K Duncan Vaporizer
US2883511A (en) * 1958-04-17 1959-04-21 Layton T Gooldy Humidifier
US3035145A (en) * 1959-11-02 1962-05-15 John Metzger Humidifier
US3219796A (en) * 1962-01-04 1965-11-23 Badertscher Apparatus for moistening air
US3267678A (en) * 1964-05-06 1966-08-23 Camp Nat Vapor-generating device

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US620086A (en) * 1899-02-21 L casper
US1430548A (en) * 1922-01-06 1922-10-03 Oliver D Hogue Humidifying apparatus
US1909973A (en) * 1931-03-02 1933-05-23 Carroll E Lewis Vaporizer
US2014836A (en) * 1933-09-16 1935-09-17 Commercial Products Company Portable device for producing and delivering steam and hot water under pressure
US2211407A (en) * 1938-11-03 1940-08-13 Mayflower Lewis Corp Portable vaporizer
US2443417A (en) * 1944-10-10 1948-06-15 John K Duncan Vaporizer
US2883511A (en) * 1958-04-17 1959-04-21 Layton T Gooldy Humidifier
US3035145A (en) * 1959-11-02 1962-05-15 John Metzger Humidifier
US3219796A (en) * 1962-01-04 1965-11-23 Badertscher Apparatus for moistening air
US3267678A (en) * 1964-05-06 1966-08-23 Camp Nat Vapor-generating device

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800528A (en) * 1971-11-08 1974-04-02 Gamell J Ind Inc Power generating system
US3743780A (en) * 1972-05-01 1973-07-03 N Camp Boiling chamber for steam generator
US4028444A (en) * 1974-03-25 1977-06-07 Chemetron Corporation Humidifier and automatic control system therefor
US3961893A (en) * 1974-10-17 1976-06-08 Hydrotherm Corporation Steam disinfector for contact lenses
US4784033A (en) * 1986-01-22 1988-11-15 Milford Products Corporation Triple chip ground carbide tip bandsaw blade with ductile filler
GB2227821A (en) * 1989-01-26 1990-08-08 Ward Bekker Sales Limited Devices for generating steam; wallpaper strippers
US5456742A (en) * 1993-09-09 1995-10-10 Holmes Products Corp. Electric circuit having a convenience outlet for use in a humidifier or an air purifier
US5673360A (en) * 1995-09-11 1997-09-30 Scripps; J. Sebastian Travel Humidifier
EP3488717A1 (en) * 2005-07-19 2019-05-29 JT International SA Method and system for vaporization of substance
US11647783B2 (en) 2005-07-19 2023-05-16 Juul Labs, Inc. Devices for vaporization of a substance
US11904089B2 (en) 2011-08-16 2024-02-20 Juul Labs, Inc. Devices for vaporization of a substance
US20150056128A1 (en) * 2012-04-26 2015-02-26 Showa Denko K.K. Evaporative gas generating device, method for producing evaporative gas, hydrogen bromide production device, and method for producing hydrogen bromide
US9835325B2 (en) * 2012-04-26 2017-12-05 Showa Denko K.K. Evaporative gas generating device, method for producing evaporative gas, hydrogen bromide production device, and method for producing hydrogen bromide
US20190353397A1 (en) * 2017-11-20 2019-11-21 Atlantic, Gulf & Pacific Company Of Manila, Inc. Floating storage and regas vessels comprising a marinized vaporizer unit, methods of making and using same, methods for processing lng, and lng and/or natural gas produced by any of the forgoing
US11554925B2 (en) * 2018-11-26 2023-01-17 Kinboshi Inc. Method and system for gas transfer type fine powder quantitative feeding

Also Published As

Publication number Publication date
DE1938465B2 (nl) 1979-09-20
DE1938465A1 (de) 1970-02-05
BE736700A (nl) 1969-12-31
NL6911654A (nl) 1970-02-03
NL167097B (nl) 1981-06-16
FR2014071A1 (nl) 1970-04-10
NL167097C (nl) 1981-11-16
DE1938465C3 (de) 1980-06-04
CH493259A (de) 1970-07-15
GB1273795A (en) 1972-05-10

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