EP0511525A1 - Appareil pour produire de la vapeur, en particulier pour l'humidification de l'air - Google Patents
Appareil pour produire de la vapeur, en particulier pour l'humidification de l'air Download PDFInfo
- Publication number
- EP0511525A1 EP0511525A1 EP92106030A EP92106030A EP0511525A1 EP 0511525 A1 EP0511525 A1 EP 0511525A1 EP 92106030 A EP92106030 A EP 92106030A EP 92106030 A EP92106030 A EP 92106030A EP 0511525 A1 EP0511525 A1 EP 0511525A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chamber
- water
- heating
- constituted
- sediment collection
- 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- Withdrawn
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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 steam producing apparatus, particularly for humidifying air.
- Immersed-electrode vaporizers are mainly used to vaporize water suitable for humidifying air in air-conditioning systems or in so-called “fan coils” or “split systems”.
- Said vaporizers are substantially constituted by a vessel which extends vertically and which contains electrodes which are supplied with mains power.
- the presence of the electrodes inside the vessel is the source of problems which are mainly due to the calcium which clings thereto, causing deposits and corrosions which deteriorate the operation of the evaporator and limit its operating life.
- the aim of the present invention is to provide an apparatus for producing steam for humidifying air which eliminates or at least reduces the problems described above in the prior art.
- a consequent primary object is to provide an apparatus whose operation for a same type of liquid is substantially independent of the concentration of salts dissolved therein and is thus independent of the conductivity and aggressiveness thereof.
- Another important object is to provide a highly efficient apparatus.
- Not least object is to provide an apparatus which can be marketed at a price which is at least comparable to that of conventional immersed-electrode evaporators.
- a further object of the invention is that of maximizing the life of the apparatus, and thereby limiting maintenance interventions.
- a steam producing apparatus which comprises a container for liquid to be vaporized with an upper steam collection manifold, said container being divided into an upper heating and evaporation chamber, in whose walls electric resistors are embedded, and into a lower sediment collection chamber.
- figure 1 is a schematic longitudinal sectional view of the apparatus according to the invention.
- the steam producing apparatus comprises a container, generally designated by the reference numeral 1 which extends vertically and is provided, in an upward position, with a manifold 2 for collecting and directing the produced steam.
- Said container 1 is divided, according to the invention, into an upper heating and evaporation chamber 3, in whose walls electric resistors 4 are embedded, and into a lower sediment collection chamber 5 which has a greater capacity than said upper chamber.
- said upper chamber 3 is constituted by an axial annular interspace which is obtained from a vertically extending cylinder.
- Said upper chamber 3 is sealingly connected, in its lower part, to the chamber 5.
- the liquid which is constituted by water which is designated by the reference numeral 6, completely fills the lower chamber 5 and skims the inner surface of the upper chamber 3.
- the lower chamber 5 for collecting sediments of crystallized salts which also has a substantially cylindrical extension, is made of a material which withstands the temperature of 100 degrees Celsius and, as already mentioned earlier, is sealingly connected to the upper chamber 3.
- a water feed pipe 7 and a water discharge pipe 8 are connected in a downward position to said chamber 5; said pipes are respectively part of a respective feed circuit 9 and of a discharge circuit 10.
- the two pipes 7 and 8 are in any case mutually connected by a union 11 and exit below a filter 12 which protects the inside of the chamber 5.
- the water feed circuit 9 is constituted by a pipe which defines a siphon 13 by rising higher than the heating chamber 3, and by an electric feed valve 14 with a built-in flow regulator.
- the water discharge circuit 10 is instead constituted by an electric pump 15 with a pipe which defines a siphon 16 which is lower than the maximum height of the heating chamber 3 and is open.
- a level sensor is arranged inside the heating chamber 3 and has two steps: a normal operation step and an overflow alarm step.
- a sensor which detects the operating temperature of the heating chamber 3 is also mounted inside said chamber and is not visible in the figure.
- An axial shaft 17 is also present inside the heating chamber 3 and radially supports, by means of an arm 17a, a scraper element 18 which scrapes the inner and outer surfaces of said chamber.
- Said shaft 17 is rigidly associated with the shaft of a motor 19 which rotates it, consequently rotating the element 18, which removes any calcareous deposits present on the surface of the chamber 3.
- the shaft of the motor 19, the shaft 17 and the chamber 3 are axially hollow, and another shaft 20 is arranged inside them, extends downward to the inside of the lower chamber 5 and is provided, at its end, with a propeller 21.
- Said shaft 20 is rotated by another motor 22 which consequently rotates the propeller 21 at a low rpm rate.
- Said propeller 21 acts as sensor suitable for detecting the amount of deposited salts.
- Said propeller is in fact braked by high salt concentrations.
- the current absorbed by the motor 22 can thus constitute an alarm signal.
- the flow of current through the electric resistors 4 heats the cylinder which constitutes the chamber 3 and thus heats the water inside it, with the consequent evaporation of said water.
- this steam production system has an undeniable advantage, which arises from the fact that its heating element (the resistor) is not in direct contact with the water and that it therefore avoids deposits and corrosion.
- the mechanical deposit removal system which is operated periodically, eliminates the salts which crystallize on the inner surface of the chamber 3, keeping heat exchange with the water optimum.
- Another evident advantage is the possibility of working with any kind of water, regardless of its conductivity and thus of its aggressiveness.
- the water discharge circuit is used to completely empty the water of the heating chamber 3 and of the sediment collection chamber 5 both for automatic periodic maintenance (time-controlled discharge) and for chamber replacement.
- the discharge circuit also acts as overflow circuit, with the purpose of eliminating the water which might completely fill the heating chamber 3.
- the overflow circuit has a second safety function if a narrowing occurs in the steam delivery pipe.
- the discharge circuit is structured so as to avoid explosions, since the overpressure would push the water, making it flow out through the open siphon, until the heating chamber 3 reached atmospheric pressure.
- the first signal step is used to warn the control unit of the apparatus, which supervises its operation and the alarms, so that water loading is performed.
- the second step is used to indicate an overflow alarm which makes the control unit discharge water.
- the temperature sensing performed by the related sensor checks that said temperature does not exceed a limit threshold, in which case the control unit of the apparatus reduces the power of the resistors by a certain percentage, so as to reduce the temperature of the heating chamber 3 and thus reduce the production of steam.
- a further increase beyond an alarm temperature value causes the control unit to switch the apparatus off completely and to issue an alarm signal.
- the temperature sensor constitutes a further safety element, since it avoids overheatings and excessive temperatures.
- the control unit of the apparatus also supervises, by means of the temperature sensor, the preheating of the water when the set relative humidity has been reached, so as to have an immediate production of steam when required.
- the sensor constituted by the propeller 21 is suitable for issuing an alarm signal if the salts deposited in the chamber 5 have filled said chamber.
- the materials employed may be any according to the requirements.
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)
- Air Humidification (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITPD910024U | 1991-04-10 | ||
IT000024 IT224189Z2 (it) | 1991-04-10 | 1991-04-10 | Apparecchiatura per la produzione di vapore per l'umidificazione dell'aria |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0511525A1 true EP0511525A1 (fr) | 1992-11-04 |
Family
ID=11389443
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92106030A Withdrawn EP0511525A1 (fr) | 1991-04-10 | 1992-04-07 | Appareil pour produire de la vapeur, en particulier pour l'humidification de l'air |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0511525A1 (fr) |
IT (1) | IT224189Z2 (fr) |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5865857A (en) * | 1992-11-05 | 1999-02-02 | Zeneca Limited | Blue to green disperse dyes for synthetic fiber material |
EP1059487A3 (fr) * | 1999-06-07 | 2002-03-27 | GENERAL TECHNOLOGY S.r.l. | Appareil à vapeur à usage domestique avec détartrage à commande automatique ou manuelle |
EP1437547A2 (fr) * | 2003-01-09 | 2004-07-14 | Hansgrohe AG | Dispositif de production de vapeur ainsi que son procédé de nettoyage et sa méthode d'opération |
WO2006097002A2 (fr) * | 2005-03-14 | 2006-09-21 | Axair Ag | Generateur de vapeur a dispositif de tourbillonnement |
WO2008157848A2 (fr) * | 2007-06-18 | 2008-12-24 | Stanley Clemens Deutschmann | Humidificateur à électrode |
US7665332B2 (en) | 2006-08-15 | 2010-02-23 | Whirlpool Corporation | Steam fabric treatment appliance with exhaust |
US7681418B2 (en) | 2006-08-15 | 2010-03-23 | Whirlpool Corporation | Water supply control for a steam generator of a fabric treatment appliance using a temperature sensor |
US7690062B2 (en) | 2007-08-31 | 2010-04-06 | Whirlpool Corporation | Method for cleaning a steam generator |
US7707859B2 (en) | 2006-08-15 | 2010-05-04 | Whirlpool Corporation | Water supply control for a steam generator of a fabric treatment appliance |
US7730568B2 (en) | 2006-06-09 | 2010-06-08 | Whirlpool Corporation | Removal of scale and sludge in a steam generator of a fabric treatment appliance |
US7753009B2 (en) | 2006-10-19 | 2010-07-13 | Whirlpool Corporation | Washer with bio prevention cycle |
US7765628B2 (en) | 2006-06-09 | 2010-08-03 | Whirlpool Corporation | Steam washing machine operation method having a dual speed spin pre-wash |
US7841219B2 (en) | 2006-08-15 | 2010-11-30 | Whirlpool Corporation | Fabric treating appliance utilizing steam |
US7861343B2 (en) | 2007-08-31 | 2011-01-04 | Whirlpool Corporation | Method for operating a steam generator in a fabric treatment appliance |
US7886392B2 (en) | 2006-08-15 | 2011-02-15 | Whirlpool Corporation | Method of sanitizing a fabric load with steam in a fabric treatment appliance |
US7905119B2 (en) | 2007-08-31 | 2011-03-15 | Whirlpool Corporation | Fabric treatment appliance with steam generator having a variable thermal output |
US7918109B2 (en) | 2007-08-31 | 2011-04-05 | Whirlpool Corporation | Fabric Treatment appliance with steam generator having a variable thermal output |
US7941885B2 (en) | 2006-06-09 | 2011-05-17 | Whirlpool Corporation | Steam washing machine operation method having dry spin pre-wash |
US7966683B2 (en) | 2007-08-31 | 2011-06-28 | Whirlpool Corporation | Method for operating a steam generator in a fabric treatment appliance |
US8037565B2 (en) | 2007-08-31 | 2011-10-18 | Whirlpool Corporation | Method for detecting abnormality in a fabric treatment appliance having a steam generator |
US8393183B2 (en) | 2007-05-07 | 2013-03-12 | Whirlpool Corporation | Fabric treatment appliance control panel and associated steam operations |
US8555675B2 (en) | 2007-08-31 | 2013-10-15 | Whirlpool Corporation | Fabric treatment appliance with steam backflow device |
US8555676B2 (en) | 2007-08-31 | 2013-10-15 | Whirlpool Corporation | Fabric treatment appliance with steam backflow device |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3873806A (en) * | 1969-06-11 | 1975-03-25 | George W Schossow | Vaporizer-humidifier |
DE3532261A1 (de) * | 1985-09-10 | 1987-03-19 | Riba Guenther | Dampferzeuger |
EP0323939A1 (fr) * | 1988-01-08 | 1989-07-12 | SOCIETE COOPERATIVE DE PRODUCTION BOURGEOIS (Société Coopérative de Production Anonyme à Capital Variable) | Générateur de vapeur d'eau pour appareil de cuisson |
FR2645624A1 (fr) * | 1989-04-05 | 1990-10-12 | Blanco Jean Luc | Generateur de vapeur d'eau, et son application a un appareil pour fondre la cire d'abeille |
EP0451066A1 (fr) * | 1990-04-04 | 1991-10-09 | SOCIETE COOPERATIVE DE PRODUCTION BOURGEOIS (Société Coopérative de Production Anonyme à Capital Variable) | Générateur de vapeur d'eau pour appareil de cuisson, muni d'un dispositif de vidange |
EP0383327B1 (fr) * | 1989-02-17 | 1993-06-09 | LechMetall Landsberg GmbH Edelstahlerzeugnisse | Chaudière à vapeur avec détartrage pour appareil de cuisson |
-
1991
- 1991-04-10 IT IT000024 patent/IT224189Z2/it active IP Right Grant
-
1992
- 1992-04-07 EP EP92106030A patent/EP0511525A1/fr not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3873806A (en) * | 1969-06-11 | 1975-03-25 | George W Schossow | Vaporizer-humidifier |
DE3532261A1 (de) * | 1985-09-10 | 1987-03-19 | Riba Guenther | Dampferzeuger |
EP0323939A1 (fr) * | 1988-01-08 | 1989-07-12 | SOCIETE COOPERATIVE DE PRODUCTION BOURGEOIS (Société Coopérative de Production Anonyme à Capital Variable) | Générateur de vapeur d'eau pour appareil de cuisson |
EP0383327B1 (fr) * | 1989-02-17 | 1993-06-09 | LechMetall Landsberg GmbH Edelstahlerzeugnisse | Chaudière à vapeur avec détartrage pour appareil de cuisson |
FR2645624A1 (fr) * | 1989-04-05 | 1990-10-12 | Blanco Jean Luc | Generateur de vapeur d'eau, et son application a un appareil pour fondre la cire d'abeille |
EP0451066A1 (fr) * | 1990-04-04 | 1991-10-09 | SOCIETE COOPERATIVE DE PRODUCTION BOURGEOIS (Société Coopérative de Production Anonyme à Capital Variable) | Générateur de vapeur d'eau pour appareil de cuisson, muni d'un dispositif de vidange |
Cited By (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5865857A (en) * | 1992-11-05 | 1999-02-02 | Zeneca Limited | Blue to green disperse dyes for synthetic fiber material |
EP1059487A3 (fr) * | 1999-06-07 | 2002-03-27 | GENERAL TECHNOLOGY S.r.l. | Appareil à vapeur à usage domestique avec détartrage à commande automatique ou manuelle |
EP1437547A2 (fr) * | 2003-01-09 | 2004-07-14 | Hansgrohe AG | Dispositif de production de vapeur ainsi que son procédé de nettoyage et sa méthode d'opération |
EP1437547A3 (fr) * | 2003-01-09 | 2005-05-04 | Hansgrohe AG | Dispositif de production de vapeur ainsi que son procédé de nettoyage et sa méthode d'opération |
WO2006097002A2 (fr) * | 2005-03-14 | 2006-09-21 | Axair Ag | Generateur de vapeur a dispositif de tourbillonnement |
WO2006097002A3 (fr) * | 2005-03-14 | 2006-12-14 | Axair Ag | Generateur de vapeur a dispositif de tourbillonnement |
US7730568B2 (en) | 2006-06-09 | 2010-06-08 | Whirlpool Corporation | Removal of scale and sludge in a steam generator of a fabric treatment appliance |
US7941885B2 (en) | 2006-06-09 | 2011-05-17 | Whirlpool Corporation | Steam washing machine operation method having dry spin pre-wash |
US7765628B2 (en) | 2006-06-09 | 2010-08-03 | Whirlpool Corporation | Steam washing machine operation method having a dual speed spin pre-wash |
US7841219B2 (en) | 2006-08-15 | 2010-11-30 | Whirlpool Corporation | Fabric treating appliance utilizing steam |
US7707859B2 (en) | 2006-08-15 | 2010-05-04 | Whirlpool Corporation | Water supply control for a steam generator of a fabric treatment appliance |
US7681418B2 (en) | 2006-08-15 | 2010-03-23 | Whirlpool Corporation | Water supply control for a steam generator of a fabric treatment appliance using a temperature sensor |
US7665332B2 (en) | 2006-08-15 | 2010-02-23 | Whirlpool Corporation | Steam fabric treatment appliance with exhaust |
US7913339B2 (en) | 2006-08-15 | 2011-03-29 | Whirlpool Corporation | Water supply control for a steam generator of a fabric treatment appliance using a temperature sensor |
US7886392B2 (en) | 2006-08-15 | 2011-02-15 | Whirlpool Corporation | Method of sanitizing a fabric load with steam in a fabric treatment appliance |
US7904981B2 (en) | 2006-08-15 | 2011-03-15 | Whirlpool Corporation | Water supply control for a steam generator of a fabric treatment appliance |
US7753009B2 (en) | 2006-10-19 | 2010-07-13 | Whirlpool Corporation | Washer with bio prevention cycle |
US10844533B2 (en) | 2007-05-07 | 2020-11-24 | Whirlpool Corporation | Method for controlling a household washing machine |
US8393183B2 (en) | 2007-05-07 | 2013-03-12 | Whirlpool Corporation | Fabric treatment appliance control panel and associated steam operations |
US11993886B2 (en) | 2007-05-07 | 2024-05-28 | Whirlpool Corporation | Method for controlling a household washing machine |
WO2008157848A3 (fr) * | 2007-06-18 | 2009-06-25 | Stanley Clemens Deutschmann | Humidificateur à électrode |
WO2008157848A2 (fr) * | 2007-06-18 | 2008-12-24 | Stanley Clemens Deutschmann | Humidificateur à électrode |
US7918109B2 (en) | 2007-08-31 | 2011-04-05 | Whirlpool Corporation | Fabric Treatment appliance with steam generator having a variable thermal output |
US7905119B2 (en) | 2007-08-31 | 2011-03-15 | Whirlpool Corporation | Fabric treatment appliance with steam generator having a variable thermal output |
US7966683B2 (en) | 2007-08-31 | 2011-06-28 | Whirlpool Corporation | Method for operating a steam generator in a fabric treatment appliance |
US8037565B2 (en) | 2007-08-31 | 2011-10-18 | Whirlpool Corporation | Method for detecting abnormality in a fabric treatment appliance having a steam generator |
US7861343B2 (en) | 2007-08-31 | 2011-01-04 | Whirlpool Corporation | Method for operating a steam generator in a fabric treatment appliance |
US8555675B2 (en) | 2007-08-31 | 2013-10-15 | Whirlpool Corporation | Fabric treatment appliance with steam backflow device |
US8555676B2 (en) | 2007-08-31 | 2013-10-15 | Whirlpool Corporation | Fabric treatment appliance with steam backflow device |
US7690062B2 (en) | 2007-08-31 | 2010-04-06 | Whirlpool Corporation | Method for cleaning a steam generator |
Also Published As
Publication number | Publication date |
---|---|
ITPD910024V0 (it) | 1991-04-10 |
ITPD910024U1 (it) | 1992-10-10 |
IT224189Z2 (it) | 1996-02-09 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 19930505 |