EP0595077A1 - High-efficiency device for vapor production - Google Patents

High-efficiency device for vapor production Download PDF

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Publication number
EP0595077A1
EP0595077A1 EP93116129A EP93116129A EP0595077A1 EP 0595077 A1 EP0595077 A1 EP 0595077A1 EP 93116129 A EP93116129 A EP 93116129A EP 93116129 A EP93116129 A EP 93116129A EP 0595077 A1 EP0595077 A1 EP 0595077A1
Authority
EP
European Patent Office
Prior art keywords
boiler
steam
water
duct
pressurized tank
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.)
Withdrawn
Application number
EP93116129A
Other languages
German (de)
English (en)
French (fr)
Inventor
Giuseppe De' Longhi
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.)
De Longhi SpA
Original Assignee
Miralfin SRL
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 Miralfin SRL filed Critical Miralfin SRL
Publication of EP0595077A1 publication Critical patent/EP0595077A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
    • F22B1/284—Methods of steam generation characterised by form of heating method in boilers heated electrically with water in reservoirs

Definitions

  • the present invention relates to a high-efficiency device for vapor production.
  • current ironing or cleaning machines include a boiler which is normally provided with one or more resistors for superheating the water which it contains and thus generating a large amount of steam.
  • the steam passes from the boiler, through for example a manually controllable electric valve, into one or more flexible hoses for conveying the steam for example to an iron or to a cleaning machines, from of which the steam flows out in a preset amount.
  • the aim of the present invention is to eliminate the drawbacks of conventional ironing machines.
  • an important object of the invention is to provide a high-efficiency device for vapor production which, for an equal consumption of electric power, has an extremely reduced steam production time with respect to a conventional device for vapor production.
  • Another object of the present invention is to provide a device for vapor production which, while maintaining the reduction in the time required to produce steam, has an extremely long endurance in operation.
  • a further object of the present invention is to provide a device for vapor production which clearly has a lower energy consumption if the time required to produce steam is the same as that of a conventional device for vapor production.
  • Another object of the invention is to provide a device for vapor production which achieves high efficiency without using, for this purpose, expensive electromechanical devices except those which are already present in a conventional ironing or cleaning machine.
  • a high-efficiency device for vapor production which includes a boiler provided with a means for heating a selected amount of water in order to form steam, with a means for controlling the forming of the steam and with a means for the controlled dispensing of the steam, by means of flexible hoses, to a delivery body characterized in that the boiler is connected to a means for the storage of water and steam for replenishing the water and steam in the boiler in proportion to their consumption by said delivery body.
  • the high-efficiency device for vapor production includes a boiler 2 which is provided with a heating means and in particular, for example, with a resistor 3 which is arranged at its base and with a means 4 for controlling the forming of steam, such as for example conventional control devices such as thermostats and/or manostats.
  • the boiler 2 is furthermore provided with a means 5 for the controlled dispensing of the steam, such as for example an electric valve which can be controlled manually to transfer steam from the boiler for example to an iron 6 and from the iron onto the fabric to be ironed by means of flexible hoses 7.
  • a means for storing water and steam generally designated by the reference numeral 8, which is suitable to replenish water and steam inside the boiler 2 in proportion to the consumption of the steam which flows out of the delivery body which in said example is an iron 6 but can be also a cleaning body and so on.
  • the storage means 8 includes a pressurized tank 9 which has an opening 11 suitable to allow the insertion of water 12 inside the tank.
  • the opening 11 is provided with a closure and safety plug 13.
  • the pressurized tank 9 furthermore has a first duct and a second duct, respectively designated by the reference numerals 15 and 16, which are connected to the boiler 2.
  • the first duct 15 extends from a wall 14 which is directed toward the boiler 2.
  • the opening 11 is formed by a pipe 17 which extends inside the pressurized tank 9 by an extent "H", so as to prevent the complete filling of the pressurized tank 9 by forming an air pocket for the accumulation of steam, as explained more clearly hereinafter.
  • the inlet of the second duct 16 which can extend both from the upper wall 10 and from the side wall 14, must always be connected to the air pocket.
  • the first duct 15 is instead provided with a one-way valve 18 which allows the water in the pressurized tank 9 to flow into the boiler 2 but prevents the return of the water into the pressurized tank 9 once a preset pressure has been reached in the boiler 2.
  • the first duct is arranged at a lower level than the second duct 16 and is connected to the boiler 2 substantially in a lower portion of its side wall 20.
  • the second duct 16 is instead connected to the boiler 2 on its upper wall 21 and extends inside the boiler for an extent "Y", so as to prevent the complete filling of the boiler, once again forming an air pocket for the accumulation of steam inside the boiler.
  • the boiler 2 wherein water is superheated to form steam is extremely small, in order to have an extremely short steam production time for an equal electric power consumption with respect to a boiler of a conventional ironing or cleaning machine.
  • the maximum level of the water inside the pressurized tank 9 is substantially slightly higher than the outlet of the pipe 17.
  • the level of the water inside the boiler substantially rises, due to well-known laws of physics, to a level slightly higher than the outlet 30 of the duct 16.
  • the one-way valve 18 closes and part of the water flows, together with the steam, from the boiler 2 into the pressurized tank 9 by means of the duct 16.
  • the one-way valve 8 opens and allows water to flow from the pressurized tank 9 to the boiler 2.
  • the device for vapor production according to the invention is particularly advantageous in that it allows, for an equal power consumption with respect to a conventional device for vapor production, to reduce to less than one third the time required to produce steam and thus start to use it.
  • the operating endurance of the ironing or cleaning machine is equivalent to, if not higher than, that of conventional ironing or cleaning machines by virtue of the presence, in the pressurized tank 9, of preheated water and steam which are suitable to supply the boiler 2 every time this is necessary.
  • the materials employed, as well as the dimensions, may be any according to the requirements and the state of the art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Irons (AREA)
EP93116129A 1992-10-30 1993-10-06 High-efficiency device for vapor production Withdrawn EP0595077A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI920948U 1992-10-30
ITMI920948 IT227146Y1 (it) 1992-10-30 1992-10-30 Struttura di stiratrice ad elevato rendimento

Publications (1)

Publication Number Publication Date
EP0595077A1 true EP0595077A1 (en) 1994-05-04

Family

ID=11362998

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93116129A Withdrawn EP0595077A1 (en) 1992-10-30 1993-10-06 High-efficiency device for vapor production

Country Status (2)

Country Link
EP (1) EP0595077A1 (it)
IT (1) IT227146Y1 (it)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005001337A1 (de) * 2003-06-27 2005-01-06 Wella Aktiengesellschaft Vorrichtung mit einem kessel zum erzeugen von wasserdampf
EP1666791A1 (en) * 2004-10-26 2006-06-07 Duemme S.p.A. Heated tank for steam-using household appliance
EP1925881A2 (en) * 2006-07-25 2008-05-28 I.R.C.A. S.p.a. Industria Resistenze Corazzate e Affini Steam generator, in particular for household electrical appliances such as washing-drying machines, dishwashers, etc.
WO2008075255A2 (en) * 2006-12-18 2008-06-26 Koninklijke Philips Electronics N.V. A device for supplying superheated water
EP1484961B2 (en) † 2002-03-15 2016-09-07 DeLaval Holding AB A method and an arrangment at a dairy farm
WO2017090641A1 (ja) * 2015-11-24 2017-06-01 新日本美風株式会社 常圧過熱水蒸気発生装置
CN108560221A (zh) * 2018-04-11 2018-09-21 广东美的环境电器制造有限公司 密封装置、连接通道装置及挂烫机
WO2019102408A1 (en) * 2017-11-23 2019-05-31 I.R.C.A. S.P.A. Industria Resistenze Corazzate E Affini Steam generation system for use in household appliance

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1682320A (en) * 1928-08-28 brewer
US2252541A (en) * 1940-02-16 1941-08-12 Westinghouse Electric & Mfg Co Electric steam generator
US2785271A (en) * 1953-10-08 1957-03-12 Hal H Baly Steam generator
US3559427A (en) * 1969-03-19 1971-02-02 Norman J Baker Clothes steaming device
GB2158210A (en) * 1984-03-21 1985-11-06 Christopher James Nutt Vapour generator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1682320A (en) * 1928-08-28 brewer
US2252541A (en) * 1940-02-16 1941-08-12 Westinghouse Electric & Mfg Co Electric steam generator
US2785271A (en) * 1953-10-08 1957-03-12 Hal H Baly Steam generator
US3559427A (en) * 1969-03-19 1971-02-02 Norman J Baker Clothes steaming device
GB2158210A (en) * 1984-03-21 1985-11-06 Christopher James Nutt Vapour generator

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1484961B2 (en) † 2002-03-15 2016-09-07 DeLaval Holding AB A method and an arrangment at a dairy farm
US7639929B2 (en) 2003-06-27 2009-12-29 Wella Ag Device comprising a boiler for generating steam
WO2005001337A1 (de) * 2003-06-27 2005-01-06 Wella Aktiengesellschaft Vorrichtung mit einem kessel zum erzeugen von wasserdampf
EP1666791A1 (en) * 2004-10-26 2006-06-07 Duemme S.p.A. Heated tank for steam-using household appliance
EP1925881A2 (en) * 2006-07-25 2008-05-28 I.R.C.A. S.p.a. Industria Resistenze Corazzate e Affini Steam generator, in particular for household electrical appliances such as washing-drying machines, dishwashers, etc.
EP1925881A3 (en) * 2006-07-25 2011-02-02 I.R.C.A. S.p.a. Industria Resistenze Corazzate e Affini Steam generator, in particular for household electrical appliances such as washing-drying machines, dishwashers, etc.
WO2008075255A2 (en) * 2006-12-18 2008-06-26 Koninklijke Philips Electronics N.V. A device for supplying superheated water
EP1944404A1 (en) * 2006-12-18 2008-07-16 Koninklijke Philips Electronics N.V. A device for supplying superheated water
WO2008075255A3 (en) * 2006-12-18 2008-11-20 Koninkl Philips Electronics Nv A device for supplying superheated water
CN101563496B (zh) * 2006-12-18 2011-11-30 皇家飞利浦电子股份有限公司 用于提供过热水的设备
WO2017090641A1 (ja) * 2015-11-24 2017-06-01 新日本美風株式会社 常圧過熱水蒸気発生装置
WO2019102408A1 (en) * 2017-11-23 2019-05-31 I.R.C.A. S.P.A. Industria Resistenze Corazzate E Affini Steam generation system for use in household appliance
CN108560221A (zh) * 2018-04-11 2018-09-21 广东美的环境电器制造有限公司 密封装置、连接通道装置及挂烫机
CN108560221B (zh) * 2018-04-11 2023-12-19 广东美的环境电器制造有限公司 密封装置、连接通道装置及挂烫机

Also Published As

Publication number Publication date
ITMI920948V0 (it) 1992-10-30
ITMI920948U1 (it) 1994-04-30
IT227146Y1 (it) 1997-09-15

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