EP3446046A1 - Boiler - Google Patents
BoilerInfo
- Publication number
- EP3446046A1 EP3446046A1 EP17720708.1A EP17720708A EP3446046A1 EP 3446046 A1 EP3446046 A1 EP 3446046A1 EP 17720708 A EP17720708 A EP 17720708A EP 3446046 A1 EP3446046 A1 EP 3446046A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- boiler
- container
- limescale
- cavity
- discharge pipe
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims description 20
- 239000002184 metal Substances 0.000 claims description 20
- 238000009825 accumulation Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 18
- 229910052742 iron Inorganic materials 0.000 description 9
- 238000001514 detection method Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005755 formation reaction Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000010409 ironing Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- F24H9/00—Details
- F24H9/02—Casings; Cover lids; Ornamental panels
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F75/00—Hand irons
- D06F75/08—Hand irons internally heated by electricity
- D06F75/10—Hand irons internally heated by electricity with means for supplying steam to the article being ironed
- D06F75/12—Hand irons internally heated by electricity with means for supplying steam to the article being ironed the steam being produced from water supplied to the iron from an external source
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/48—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers
-
- 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
- F24H1/0072—Special adaptations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/0092—Devices for preventing or removing corrosion, slime or scale
Definitions
- the present invention concerns a boiler to generate steam and/or to heat water, usable in domestic appliances and professional machines such as, for example, ironing or cleaning apparatuses, coffee machines, steamers for cooking food, steam ovens and suchlike.
- Boilers used to selectively generate steam and/or to heat water in domestic appliances and professional machines normally comprise a metal container, hermetically closed, provided with at least an entrance aperture to introduce water inside it, and with an exit aperture, to discharge the water from the container.
- the boiler also comprises an aperture for the steam to exit.
- a heating element is normally associated with the metal container, generally an electric resistance or plate, selectively activated to generate the desired quantity of steam and/or to take the water to the desired temperature.
- Boilers normally also comprise one or more detection devices to detect the temperature and/or pressure inside the metal container, so as to monitor them, both to verify that they reach the desired value and also to prevent them from exceeding determinate threshold values which can damage the metal container and the boiler itself.
- limescale deposits in correspondence with the heating element, or on the wall that cooperates with the heating element, it reduces its heating effect.
- the incorrect transmission of heat by the heating element to the water inside the container can therefore entail a waste of energy, requiring higher consumption to heat the water correctly.
- the devices to detect the temperature and/or pressure are generally installed outside the metal container, the detection is influenced by the presence of limescale deposited inside, in correspondence with the external portion where they are positioned.
- the minerals that the incrustations of limescale consist of are heat insulating, and therefore they can delay or distort the detection of the temperature and/or pressure inside the metal container.
- limescale remains in suspension, it could come out of the container through the possible steam exit, occluding the hydraulic circuit through which the steam exits, and/or the devices that regulate it.
- Document US 2015/0068170 describes an iron comprising a compartment for containing the steam, integrated in the iron, connected to two lateral channels to deliver the steam.
- the connection is obtained through a steam passage pipe, which has a cavity and a removal hole communicating with the outside of the iron, closed by a cap.
- the cap is normally inserted completely inside the cavity, that is, inside the iron.
- the inclination of the passage pipe does not promote the accumulation of limescale, since in the position of use of the iron, the inclination faces upward.
- Document US 5,345,704 describes an iron comprising a compartment for containing the steam, integrated in the iron, connected to a decalcification aperture.
- the decalcification aperture is provided with a removable collector disposed inside the iron.
- the limescale is collected inside the removable collector when the iron is positioned on its heel rest, that is, in a vertical position.
- One purpose of the present invention is to provide a boiler to generate steam and/or to heat water that allows to limit the formation of limescale inside the metal container.
- Another purpose is to provide a " boiler that allows to remove, simply and quickly, the limescale that has formed inside the metal container.
- Another purpose is to provide a boiler to generate steam and/or to heat water that is simple and economical but at the same time is reliable and long-lasting.
- Another purpose is to provide a boiler that allows to prevent waste of energy for heating the water inside it.
- the Applicant has devised, tested and embodied the present invention to overcome the shortcomings of the state of the art and to obtain these and other purposes and advantages.
- a boiler to generate steam and/or to heat water comprises a container able to contain water, provided with a feed aperture to introduce water inside it, and a discharge aperture to remove water and possible limescale from the container.
- the boiler also comprises a steam exit aperture, associated with emission devices to regulate the exit of the steam.
- a discharge pipe can also be associated with the metal container, connected and disposed protruding toward the outside with respect to a lateral wall of the metal container in correspondence with the discharge aperture, to facilitate the exit of the water.
- the discharge pipe is disposed in the lower half of the lateral wall of the metal container and, in a preferential but non-restrictive solution, it is at least slightly inclined downward, to facilitate the discharge operations of the water.
- a collection cap is associated with the discharge pipe during use, configured to collect the limescale present in the water inside the metal container.
- the collection cap is disposed, during use, protruding and completely outside with respect to the container and has inside it a cavity suitable to house and retain the limescale.
- limescale retaining elements can be provided inside the cavity such as pads, metal meshes or suchlike.
- the present invention also concerns a collection cap, associated, during use, with a metal container of a boiler, and provided with an internal cavity suitable to collect and retain limescale.
- - fig. 1 is an exploded perspective view of a boiler to generate steam in accordance with embodiments described here;
- - fig. 2 is a partial view in section of fig. 1 in accordance with embodiments described here.
- Embodiments described here with reference to figs. 1-2 concern a boiler 10 to generate steam and/or for heating water, usable in domestic appliances and professional machines such as, for example, ironing or cleaning apparatuses, coffee machines, steamers for cooking food, steam ovens and suchlike.
- the boiler 10 comprises a metal container 12 able to contain the water to be transformed into steam, hermetically closed and provided with a feed aperture 14 to introduce the water inside it.
- the container 12 can comprise a first shell 12a and a second shell 12b, coupled and hermetically sealed with each other along the respective peripheral edges, so as to resist the pressure generated inside the container 12.
- the container 12 is also provided with a discharge aperture 22 to discharge the water and/or possible limescale present in the container 12.
- the discharge aperture 22 is disposed in cooperation with the bottom of the container 12, or in proximity to it, so as to facilitate the operations to discharge the water and to empty the container 12.
- the container 12 can also be provided with a steam exit aperture connected to devices to emit and regulate the steam 16.
- the boiler 10 also comprises a heating element 18 associated with the container 12, selectively activated to heat the water inside it.
- the heating element 18 can be an electric resistance or plate, positioned outside the container 12, in contact with the bottom or inside it, in direct contact with the water to be heated.
- the boiler 10 can also comprise one or more detection devices 20 configured to detect the temperature and/or pressure inside the container 12, disposed on an external surface 24 of the container 12.
- a discharge pipe 26 is also provided, connected to the discharge aperture 22 and disposed protruding toward the outside with respect to a lateral wall 13 of the container 12.
- the discharge pipe 26 is provided in the lower part, advantageously in the lower half, on the height of the lateral wall 13, and is advantageously inclined downward, with the container 12 located in a horizontal position, to promote the discharge of the water from the container 12.
- the discharge pipe 26 is connected to the container 12 by screwing, providing a mating thread, suitable for reciprocal coupling, on the respective contact surfaces of the discharge aperture 22 and the discharge pipe 26.
- the discharge pipe 26 is connected to the container 12 by welding, so as to make the two parts solid with each other.
- the boiler comprises a collection cap 30, associated during use with the discharge pipe 26 and configured to close the discharge pipe 26 and collect the limescale from the water present inside the container 12.
- the collection cap 30 is constantly wet by the water inside the container 12, which promotes the accumulation inside it of limescale.
- the collection cap 30 and the discharge pipe 26 are provided with respective threaded portions 34, 28 to allow a reciprocal coupling that can be released by screwing.
- the collection cap 30, during use is disposed completely protruding and external with respect to the container 12, and inside it has a cavity 38, suitable to house and retain the limescale.
- the cavity 38 is cylindrical in shape, or has a polygonal section, defined by one or more lateral walls 38a and a bottom wall 38b.
- the cavity 38 extends continuously with the discharge aperture 22 and the discharge pipe 26, and can receive the liquid present in the container 12.
- the cavity 38 has an internal volume suitable to contain at least 5 ml of fluid.
- the cavity 38 has an internal volume suitable to contain at least 7 ml of fluid.
- the cavity 38 has an internal volume suitable to contain at least 10 ml of fluid. In this way, the maintenance operations on the boiler 10, in particular those to remove the limescale, can be performed less frequently, while still guaranteeing that the boiler 10 functions efficiently.
- the collection cap 30 comprises a collection body 32, in which the cavity 38 is made.
- the collection body 32 comprises the threaded portion 34, mating with the threaded portion 28 provided on the external surface of the discharge pipe 26.
- the collection body 32 can be made of metal material, or heat-resistant plastic material, that is, which does not tend to deform at the temperatures that can be reached by the container 12 or by the water and/or steam inside it.
- the collection cap 30 also comprises a grip 36, solid with the collection body 32 and conformed to facilitate gripping by the user to screw/unscrew the collection cap 30 with respect to the discharge pipe 26.
- the grip 36 can have, on an external surface, protrusions and/or protuberances that function as friction elements and thus facilitate gripping by a user.
- the collection cap 30 can be removed simply and quickly by a user to discharge the water from the container 12, simply by unscrewing it from the discharge pipe 26. Its configuration also allows to display the level of limescale present therein, and to eliminate it easily, emptying the cavity 38.
- the container 12 and/or the discharge pipe 26 can be conformed so that the collection cap 30 has a downward inclination.
- a sealing element 42 is provided, configured to guarantee the hydraulic seal between them, preventing possible leakages of water to the outside.
Landscapes
- Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Textile Engineering (AREA)
- Cookers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITUA2016A002801A ITUA20162801A1 (en) | 2016-04-21 | 2016-04-21 | BOILER |
PCT/EP2017/059310 WO2017182534A1 (en) | 2016-04-21 | 2017-04-19 | Boiler |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3446046A1 true EP3446046A1 (en) | 2019-02-27 |
EP3446046B1 EP3446046B1 (en) | 2021-06-02 |
Family
ID=56740333
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17720708.1A Active EP3446046B1 (en) | 2016-04-21 | 2017-04-19 | Boiler |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3446046B1 (en) |
CN (1) | CN109312955B (en) |
ES (1) | ES2885098T3 (en) |
IT (1) | ITUA20162801A1 (en) |
WO (1) | WO2017182534A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3072103B1 (en) | 2017-10-05 | 2019-09-20 | Seb S.A. | HOUSEHOLD APPLIANCE COMPRISING A BASE COMPRISING A BOILING CHAMBER POWERED BY GRAVITY |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3729800A1 (en) * | 1987-09-05 | 1989-03-16 | Krups Stiftung | ELECTRICALLY OPERATED STEAM IRON |
FR2691176B1 (en) * | 1992-05-15 | 1995-09-08 | Moulinex Sa | ELECTRIC STEAM IRON. |
CN1047638C (en) * | 1992-05-15 | 1999-12-22 | 莫利奈克斯公司 | Steam iron |
DE4440244A1 (en) * | 1994-11-11 | 1996-05-15 | Braun Ag | steam iron |
DE59902221D1 (en) * | 1998-09-22 | 2002-09-05 | Axair Ag Pfaeffikon | STEAM GENERATOR WITH AT LEAST PARTIAL DOUBLE-WALLED EVAPORATION VESSEL |
DE10109251C1 (en) * | 2001-02-26 | 2002-08-08 | Rational Ag | Steam generator, in particular for a cooking appliance |
FR2904683B1 (en) * | 2006-08-03 | 2008-10-24 | Seb Sa | HOUSEHOLD APPLIANCE COMPRISING A TANK IN WHICH WATER IS BOILED AND MEANS FOR EVACUATING THE TARTER |
FR2906543B1 (en) * | 2006-10-02 | 2008-11-07 | Seb Sa | IRON CONTAINING AN IMPROVED CORD GUIDE DEVICE. |
JP5868973B2 (en) * | 2010-07-22 | 2016-02-24 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | Prevention or reduction of scale on heating element of water heater |
ES2391679B1 (en) * | 2010-11-12 | 2013-11-22 | Bsh Electrodomésticos España, S.A. | Domestic appliance, especially steam iron. |
RU2655255C2 (en) * | 2013-07-25 | 2018-05-24 | Конинклейке Филипс Н.В. | Steam iron |
FR3010420B1 (en) * | 2013-09-10 | 2015-09-25 | Seb Sa | IRONING HOUSEHOLD APPLIANCE COMPRISING A FILTER FOR RETAINING VAPOR TRANSPARENT TARTRE PARTICLES |
FR3022920B1 (en) * | 2014-06-27 | 2016-07-01 | Seb Sa | IRONING APPLIANCE COMPRISING A TANK FOR THE GENERATION OF PRESSURIZED STEAM WITH A DRAIN ORIFICE |
-
2016
- 2016-04-21 IT ITUA2016A002801A patent/ITUA20162801A1/en unknown
-
2017
- 2017-04-19 EP EP17720708.1A patent/EP3446046B1/en active Active
- 2017-04-19 CN CN201780038561.2A patent/CN109312955B/en active Active
- 2017-04-19 ES ES17720708T patent/ES2885098T3/en active Active
- 2017-04-19 WO PCT/EP2017/059310 patent/WO2017182534A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
ITUA20162801A1 (en) | 2017-10-21 |
EP3446046B1 (en) | 2021-06-02 |
CN109312955B (en) | 2021-08-10 |
CN109312955A (en) | 2019-02-05 |
WO2017182534A1 (en) | 2017-10-26 |
ES2885098T3 (en) | 2021-12-13 |
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